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When Power Plant Men Talk… It Pays to Listen

By Plant Electrician on August 23, 2020 | Leave a comment

Favorites Post #43

Originally Posted: May 4, 2012.

During my second summer as a summer help (1980), when I had about 6 weeks left of the summer, I was asked to take over the watering of the plant grounds because Ken Conrad was needed to do other jobs and this was taking too much of his time.

The first summer I worked as a summer help, whenever it rained, by the time you had walked from the Engineer’s Shack parking lot to the Welding Shop entrance, you felt like someone 10 feet tall. Because the entire distance would turn into a pool of red mud and as you took each step, you grew taller and taller as the mud stuck to your feet. Just before you entered the maintenance shop, you could scrape your feet on a Boot Scraper to whittle you down to size so that you would fit through the doorway.

When trucks drove into the maintenance garage, they dropped mud all over the floor. It was the summer help’s job the first summer to sweep up the shop twice each week. If it had been raining, I usually started with a shovel scraping up piles of mud. So, I recognized the importance of quickly growing grass.

What Ken was saying to me was a lot different. it had to do with all the warnings about doing it the correct way. I think in my mind I wasn’t listening because I was thinking that it really wasn’t all that difficult. I was really just eager to have the opportunity to finally drive a tractor.

Water Cannon similar to ours only ours had another spool on it that held the fire hose

So, here is what happened the next morning when I went to setup the first water cannon to water the field just north of the water treatment plant up to the Million Gallon #2 Diesel Oil Tanks berms. I thought… ok… Step one: roll out the hose… Hmmm… hook it up to the fire hydrant, and then just pull the water gun forward with the tractor and it should unroll the hose….

Well. my first mistake was that I hadn’t disengaged the spool so that it would turn freely, so when I pulled the tractor forward, off popped the connector on the end of the hose attached to the fire hydrant. That’s when I remembered Ken telling me not to forget to disengage the spool before letting out the hose. That’s ok. Ken showed me how to fix that.

I beat on it with a hammer to knock out the clamp and put it back on the end of the hose after I had cut off a piece with my pocket knife to have a clean end. Disengaged the spool, and tried it again… Nope. Pulled the end off again… I was letting it out too fast. That’s when I remembered Ken Conrad telling me not to let the hose out too fast or it would pull the end off. I repaired the connector on the hose again.

After finally laying the hose out and hooking it up to the water cannon, I disconnected the water cannon from the tractor and hooked up the hose and began pulling the steel cable out of the cable spool by pulling the tractor forward. Well, at first the water cannon wanted to follow me because you had to disengage that spool also, (as Ken had showed me).

So I thought I could just drag the water cannon back around to where it started, but that wasn’t a good idea because I ended up pulling off the connector on the fire hose again, only on the other end than before. Anyway, after repairing the hose at least three times and getting everything in position twice, I was finally ready to turn on the water.

That was when things turned from bad to worse. The first thing I did was turned on the fire hydrant using a large wrench where the water pressure instantly blew the hose out of the connector and water poured out into a big mud puddle by the time I could turn it off. then I remembered that Ken had told me to remember to make sure the screw valve was closed when you turned on the fire hydrant or else you will blow the end off of the hose….

So, I repaired the hose again, and reconnected it (standing in mud now). Closed the screw-type valve and turned on the fire hydrant. Then I opened the screw-type valve and the end of the hose blew off again… Then I remembered that Ken Conrad had told me to make sure I open the valve very slowly otherwise I would blow the connector off of the hose. So I repaired the hose again and hooked everything up (while standing in a bigger mud puddle) and tried it again.

I opened the valve slowly and the water cannon began shooting water out as I opened the valve up further and further… until a hole blew out in the middle of the hose shooting water all over the tractor. So I turned off the water again as I remembered that Ken Conrad had told me not to open the valve very far or it would start to blow out holes in the hose. I went and patched the hole the way that Ken Conrad has showed me and went back to try it again… walking through mud over to the fire hydrant, where there was an increasingly larger puddle.

I remember that it was around lunch time when I was standing in the middle of that field covered with mud standing in what looked like a mud hole that pigs would just love, trying to repair a hole in the hose for the 3rd or 4th time that it dawned on me how different my morning would have been if I had only paid more attention to Ken when he was explaining everything to me the day before.

I skipped lunch that day. Finally around 1 o’clock the water cannon was on and it was shooting water out about 40 yards in either direction. I spent that entire day making one mistake after the other. I was beat (and soaked in mud) by the time to go home.

Like this only without the grass

After sleeping on it I was determined not to let the experience from the day before intimidate me. I had learned from my mistakes and was ready to tackle the job of watering the mud in hopes that the sprigs of grass would somehow survive the 100 degree heat. As a matter of fact, the rest of the next 6 weeks the temperature was over 100 degrees every day (yeah. Every day the temperature was over 100 degrees that summer). This was Oklahoma.

When I first took over for Ken, the watering was being done in three shifts. I watered during the day, the other summer help watered in the evening and a fairly new guy named Ron Hunt watered during the late night shift (not the Ron Hunt of Power Plant Man Fame, but a guy that eventually moved to the plant in Midwest City and became an operator). After two weeks, they did away with the night shift and I was put on 7 – 12s. that is 7 days a week, 12 hour days.

I would ride to work in the morning with whichever operator was kind enough to pick me up at the corner of Washington and Lakeview (where I had walked from my parent’s house) and whichever security guard that was going that way in the evening.

I found out after a few days on this job that Colonel Sneed whose office was in the Engineer’s Shack was in charge of this job. So he would drive by and see how things were going. After a while I had a routine of where I would put the water cannons and where I would lay the Irrigation pipes. He seemed to be well pleased and even said that I could go to work for him when I was done with this job.

I told him that I was going to go back to school in a few weeks and he said that he would be waiting for me the next summer. Only Colonel Sneed, who was an older man with silver hair wasn’t there when I returned the next summer. He had either retired or died, or both. I never was sure which. I did learn a few years later that he had died, but I didn’t know when.

Besides the first day on that job, the only other memorable day I had was on a Sunday when there wasn’t anyone in the maintenance shop, I remember parking the yellow Cushman cart out in the shade of 10 and 11 belts (That is the big long belt that you see in the power plant picture on the right side of this post) where I could see both water cannons and the irrigation pipes.

I was watching dirt devils dance across the coal pile. This was one of those days when the wind is just right to make dirt devils, and there was one after the other travelling from east to west across the coal pile.

A Dust Devil

The Security guard was on his way back from checking the dam when he stopped along the road, got out of his jeep and sat on the hood and watched them for 5 or 10 minutes. For those of you who might not know, a dirt devil looks like a miniature tornado-in-training as it kicks up the dirt from the ground. These dirt devils were actually “coal devils” and they were black. They were lined up one after the other blowing across the the huge black pile of coal. You can see the size of the coal pile from this Google Image:

This is an overhead view of the plant

Then as the security guard on the hill and I were watching the coal pile, this long black finger came flying up from the coal pile reaching higher and higher into the sky twirling itself into one huge coal devil 1,000 feet tall! It traveled toward me from the coalyard and across the intake coming straight toward where I was. It ended up going directly between the two smoke stacks which are each 500 feet tall. This coal devil was easily twice the size of the smoke stacks. Tall and Black. After it went between the smoke stacks it just faded like dust devils do and it was gone.

Picture a dust devil this size but pure black

As the monstrous black coal devil was coming toward the plant, the security guard had jumped in his jeep and headed down to where I was parked. He was all excited and asked me if I had seen how big that was. We talked about the dust devils for a few minutes, then he left and I went back to watching the water cannons and irrigation pipes.

I had to wonder if that big coal devil had been created just for our benefit. It seemed at the time that God had been entertaining us that Sunday by sending small dust devils across the coal pile, and just as they do in Fireworks shows, he had ended this one with the big grand Finale by sending the monster-sized coal devil down directly between the smoke stacks.

Some times you just know when you have been blessed by a unique experience. We didn’t have cameras on cell phones in those days, and I’m not too quick with a camera anyway, but at least the guard and I were able to share that moment.

I began this post by explaining why it is important to listen to a Power Plant Man when he speaks and ended it with the dust devil story. How are these two things related? As I pointed out, I felt as if I had been given a special gift that day. Especially the minute it took for the monster coal devil to travel almost 1/2 mile from the coal yard through the smoke stacks.

It may be that one moment when a Power Plant Man speaks that he exposes his hidden wisdom. If you aren’t paying close attention, you may miss it. I did Ken Conrad an injustice the day he explained how to run the irrigation equipment and it cost me a day of pure frustration, but the real marvel was that as I made each mistake I could remember Ken telling me about that.

Ken had given me a full tutorial of the job I was about to do. How many people would do that? If I had only been listening, I would have heard Ken telling me much more than how to do the job. I would have seen clearly how Ken cared enough about me to spend all the time it took to thoroughly teach me what he knew.

That is the way it is with True Power Plant Men. Ken could have said, “roll out the hose, pull out the cable,, turn the water on … and good luck…”, but he didn’t. he went through every detail of how to make my job easier. I may have felt blessed when the monster coal devil flew between the stacks, but it was that day a couple of weeks earlier when Ken had taken the time and showed his concern that I had really been blessed.

I didn’t recognize it at the time. But as time goes by and you grow older, the importance of simple moments in your life come to light. My regret is that I didn’t realize it in time to say “Thank You Ken.” If I could take back that day, I would not only listen, I would appreciate that someone else was giving me their time for my sake. If I had done that. I’m sure I would have ended the day by saying, “Thank you Ken.”

Comments from the original post:
susanhull May 5, 2012
Ken reminds me of my dad, who, though not a power plant man per se (he was an electrical engineer, that’s pretty close,right?), would give us way more details than we thought we needed. And now I see myself doing it to my grandson (age 11), who is likely to roll his eyes and say, “I already know that!”, when I know darn well he doesn’t. Then I try to resist doing the “I told you so” dance when he finds out he doesn’t already know that. Unfortunately, he does not resist doing the dance when we find out that he did, in fact, already know it!
zensouth May 5, 2012

I like your blog because the stories are always substantial. It takes a while to take in all the flavor of it, like sampling a fine meal or a rich pastry. I do dislike the visual theme, but I think it forces me to concentrate on the content of the story.
1. Plant Electrician May 5, 2012
  
  Thanks Zen, I understand your feelings. A coal-fired power plant is hardly a normal setting. It was built way out in the country because no one really wants one in their backyard. It was the place I called home for many years. I know that when I left I took with me silicon-based ash, a couple of pounds of coal dust and asbestos particles in my lungs. I will not be surprised the day the doctor tells me that I have mesothelioma. I realized after I left, that it wasn’t the place, it was the people that were so dear to me that I called “home”.
jackcurtis May 13, 2012

I’ve served time with similar folk, people who had more time for a kid learning a job than the kid had for them. Two things stuck besides an entirely different evaluation of those people over time…first one was the old (now): “It ain’t what you don’t know that gets you; it’s what you know that ain’t so.” And the other was, remembering the old guys who had patience with you along the way, it’s always like remembering your parents and you pay it forward…(and I still think you have a book in you)

Posted in: Adventure, Biography | Tagged: boot scraper, Carpooling, coal, coal pile, Dirt Devil, dust devil, Electric Company, fire hose, grass, irrigation, Ken Conrad, mud, Oklahoma, operator, Power Plant, red mud, security guard, smoke stack, smokestack, Tractor, water cannon, water cannons, water gun

When Power Plant Men Talk… It Pays to Listen

By Plant Electrician on November 16, 2019 | Leave a comment

Originally Posted: May 4, 2012. I added some comments from the original post at the end of this post:

The entire main plant grounds would be nothing but mud because there wasn’t any grass. It had all been scraped or trampled away while building the plant and now we were trying to grow grass in places where only weeds had dared to trod before. When trucks drove into the maintenance garage, they dropped mud all over the floor. It was the summer help’s job the first summer to sweep up the shop twice each week. If it had been raining, I usually started with a shovel scraping up piles of mud. So, I recognized the importance of quickly growing grass.

The day that Ken Conrad was explaining to me how to setup and operate the water cannons, I was only half paying attention. “I got it. Roll out the plastic fiber fire hose, unhook the water cannon from the tractor, let out the cable. turn it on the fire hydrant… Done….” That was all I heard. What Ken was saying to me was a lot different. it had to do with all the warnings about doing it the correct way. I think in my mind I wasn’t listening because I was thinking that it really wasn’t all that difficult. I was really just eager to have the opportunity to finally drive a tractor.

Water Cannon similar to ours only ours had another spool on it that held the fire hose

Like this only without the grass

I didn’t own a car so, I had to catch a ride with someone in the morning in order to be at the plant by 6am. Then I had to catch a ride back to Stillwater in the evening when I left at 6:30pm each day of the week. The Operators and the security guards worked out good for this. I would ride to work in the morning with whichever operator was kind enough to pick me up at the corner of Washington and Lakeview (where I had walked from my parent’s house) and whichever security guard that was going that way in the evening.

A Dust Devil

This is an overhead view of the plant

Picture a dust devil this size but pure black

Comments from the original post:
susanhull May 5, 2012
Ken reminds me of my dad, who, though not a power plant man per se (he was an electrical engineer, that’s pretty close,right?), would give us way more details than we thought we needed. And now I see myself doing it to my grandson (age 11), who is likely to roll his eyes and say, “I already know that!”, when I know darn well he doesn’t. Then I try to resist doing the “I told you so” dance when he finds out he doesn’t already know that. Unfortunately, he does not resist doing the dance when we find out that he did, in fact, already know it!
zensouth May 5, 2012

I like your blog because the stories are always substantial. It takes a while to take in all the flavor of it, like sampling a fine meal or a rich pastry. I do dislike the visual theme, but I think it forces me to concentrate on the content of the story.
1. Plant Electrician May 5, 2012
  
  Thanks Zen, I understand your feelings. A coal-fired power plant is hardly a normal setting. It was built way out in the country because no one really wants one in their backyard. It was the place I called home for many years. I know that when I left I took with me silicon-based ash, a couple of pounds of coal dust and asbestos particles in my lungs. I will not be surprised the day the doctor tells me that I have mesothelioma. I realized after I left, that it wasn’t the place, it was the people that were so dear to me that I called “home”.
jackcurtis May 13, 2012

I’ve served time with similar folk, people who had more time for a kid learning a job than the kid had for them. Two things stuck besides an entirely different evaluation of those people over time…first one was the old (now): “It ain’t what you don’t know that gets you; it’s what you know that ain’t so.” And the other was, remembering the old guys who had patience with you along the way, it’s always like remembering your parents and you pay it forward…(and I still think you have a book in you)

Resistance in a Coal-Fired Power Plant

By Plant Electrician on September 27, 2019 | Leave a comment

Originally posted April 19, 2013:

Resistance is Futile! You may have heard that before. Especially if you are a Star Trek Fan. If not, then you know that there is always some form of resistance wherever you are.

Captain Picard as Locutus trying to convince you that “Resistance is Futile” Like that is ever going to happen

I learned a lot about resistance when I first joined the electric shop at the coal-fired power plant in North Central Oklahoma in 1984. I was assigned to work with Sonny Kendrick and Bill Rivers on the Precipitator during overhauls and when I wasn’t working on the manhole pumps and there wasn’t any other emergencies going on. Actually, from 1984 on, for the next 17 years I continued to work on the precipitator… (if I had only known my fate….).

Not only did I learn a lot about resistance, I also learned about capacitance, reactance, transformers, rectifiers, power supplies, diodes, transistors, op amps, and pots (also known as potentiometers). Bill Rivers was the brains of the outfit. Sonny was the Electric Specialist banished to the Precipitator by Leroy Godfrey (See Singing Along with Sonny Kendrick). Bill thought up the ideas and Sonny went to work to implement them. I just jumped in where I was needed.

The Precipitator is the large box between the boiler and the smokestack (maybe you can see this in the Power plant picture). The purpose of the electrostatic precipitator is to take the smoke (or fly ash) out of the exhaust before it went out of the smokestack.

The plant has a similar electrostatic precipitator, only ours is twice as long

The controls for the Precipitator were all electronic at that time. That meant that there were circuit boards full of resistors, capacitors, transistors, operational amplifiers, diodes and potentiometers. These circuit boards controlled the way the power was distributed throughout the precipitator wires and plates through high powered transformers, and how the rappers and vibrators operated that dropped the collected ash into the hoppers.

Bill had me take an electronics course at the Indian Meridian Vo-tech so I would know the basics. Then he taught me all the shortcuts. I had to be able to look at a resistor and tell right away what the value of resistance it was. Resistors are color-coded and you had to learn what each of the colors represented…

This for instance is a 339 ohm resistor with a 5% tolerance.

I was expected to know this by sight. Bill would test me. There was a mnemonic device that I was taught to remember what each color represented, but it is not appropriate to repeat it, so I won’t. It is enough to say that the colors go like this: Black, Brown, Red, Orange, Yellow, Green, Blue, Violet, Gray, White (I will never forget this my entire life). These represent the numbers zero through 9. Here is a full explanation of how to read a resistor….. just in case you are curious, or you are such a boring person that you really need some material to bring up when you are at a party and don’t know what to say:

This is how the color codes work for resistors works

I found that having just the correct amount of resistance was very important. Too much or too less, and everything stops working.

Isn’t it that way with management also? If the management is too resistant to change, then things come to a halt. If they have too little resistance, they lose control of the situation. Depending on the circuit (or managerial decision) and what you are trying to do, it helps to have a manager that has a variable resistance to meet the needs of each situation. Resistance to change is always a balancing act.

During the first two years I was an electrician, the main control panels that controlled the operation of the precipitators were electronic. We spent a lot of time in the lab troubleshooting electric circuits looking for blown (or bad) parts that needed to be replaced. Then we would solder new components on the circuit boards and then put them back in operation. I learned how to be an electronics junky. I became addicted to fixing electronic circuit boards. It was like a game to me.

Later, the precipitator controls were changed to digital controls. That is, they were more like little computers controlling the precipitator. Instead of a bunch of circuit boards dumbly, but cleverly, doing their job, (how many commas can I use in one sentence?), little brains were added that made decisions and reacted to conditions in a much more dynamic way.

What was interesting was that one day Bill Rivers was describing how technology was going to be in the future. He said that some day, we will be able to sit in the lab and look on a computer and see what all the controls in the precipitator were doing (this was 1984). If something isn’t working right, we could just reach over, type a few keys on the computer and adjust the controls. Drink our sweet tea (a necessary staple in Oklahoma at the time), and then wait for the next crisis…. Then he would giggle at the look of disbelief on my face.

When he was telling me this, I was thinking in my head…. Well, that would be nice, but this sounds more like a pipe dream to me than reality. What does an older guy with six kids from a tool and die company in Columbia Missouri (where I grew up, by chance) know about the future of anything….. well…. anything…uh… new age…. If that is what you might call it… I found out you just don’t really know when you are sitting in front of a true “visionary” with tremendous insight.

Bill Rivers had this incredible knack for telling the future. In 1984 he was predicting computer controls in the control room where you ran the entire plant from a computer on a desk instead of using the “Big Board”.

I love this picture! It makes me feel at home! This was not our plant, but is a Power Plant control room

He said you would be able to call someone on a phone you kept in your pocket or your watch like Dick Tracey.

Dick Tracy in a control room of a power plant sending commands to the hopper nozzle booster pumps

I don’t know what journals Bill was reading or if he just dreamed all this stuff up in his head, or maybe he was a Star Trek Fan that believed that if you can dream it up you can do it. I do know that he picked up on subtle queues and made great inferences from them that seemed astronomically unlikely. However, I have to admit that he caught me off guard a number of times with predictions that definitely came true.

I will talk about this more in a future post, but for now I will say that we did upgrade the precipitator to where you could sit in the control room and monitor and adjust the precipitator controls (all 84 on each unit), and even each of the rappers (672 rappers) and vibrators (168 vibrators) on the roof of each precipitator. With one key on the computer I could send a plume of ash out of the smokestack that looked like the unit had just tripped, and a moment later, clean it up again. This meant that I could send smoke signals to the Osage Indian tribe 20 miles north up the Arkansas (pronounced “Are Kansas”) river, telling them that the Pow Wow would begin at sunset.

Today, I understand that the “Big Board” at the plant is just a large junction box and the plant is controlled almost (if not) completely by computers sitting on the desk. Before I left the plant in 2001, this was being transitioned slowly to computer controls. I have another story to tell some day about this, and how an operator named Jim Cave, a Power Plant Genius and true Power Plant Man of the highest integrity, was snubbed by upper management for speeding this technology along. — Another example of Power Plant Resistance….

But for now…. back to my electronic days… before I began re-programming the Eeprom chips in the precipitator controls….

An Eeprom Chip used in the preicpiitator controls

An Eeprom Chip used in the precipitator controls which I had a very “personal” relationship with…

Bill Rivers confided with me one day that when the new Instrument and Controls department had been formed from the “Results” department that his dream had been to become a part of this team. It meant the world to him. It was where he believed he belonged. It was one of his major goals in life.

There used to be two electrical specialists in the Power Plant. Sonny Kendrick was not always the only one. The other specialist was chosen to go to the Instrument and Controls shop. Bill Rivers wanted to move there also. He definitely had the experience and the knowledge to be a superb instrument and controls person. But Bill had this one problem.

He loved to joke around. He loved to pull strings and push buttons. I have mentioned in a previous posts that Bill would play a new joke on Sonny Kendrick every single day. As I have unfortunately found out in my own life… this tends to make them…. well….. it tends to make enemies out of those who have a chip on their shoulder. Those people who naturally feel inadequate in their abilities or their position in life. To go one step further…. anyone who feels “unloved”….. these people definitely do not like being joked with. They seem to never forgive you. My greatest regret in life is joking around with these individuals.

So, when it came time to choose who would be a part of the new Instrument and Controls shop, Bill Rivers was turned down. It was explained to him that the reason he was not given the job was because he cut off the leads of a transistor when he replaced them. — I’m not kidding. Bill Rivers had the habit of cutting off the leads of each resistor, transistor, diode or capacitor that he replaced…. this is why Monty Adams turned down his request for joining the “elite” Instrument and Controls shop (as he told Bill to his face).

Someone had told the Instrument and Controls Supervisor Monty Adams that Bill Rivers cut the leads off of transistors and resistors when he replaced them so that you couldn’t test them to see if they were all right. Implying that he didn’t want you to know whether he had replaced the transistor or resistor by mistake.

Bill Rivers took several transistors, cut the leads off of each of them and handed them to me and asked me to test them to see if they were still good or if they were bad. I took out my voltmeter, set it to ohms, and proceeded to test them as Bill Rivers had taught me. I told him…. this transistor is good….. this one is bad….

You see…. there is no way to cut the leads off of a transistor in such a way to make it impossible to tell if a transistor is good or bad…. In reality…. you cut the leads off of a bad transistor so that the person working on the circuit board knows that this is a bad transistor and doesn’t use it again by accident. This was electronics 101.

When Bill told me this story, he literally had tears in his eyes. This was because being part of the Instrument and Controls team was part of his dream. The future of his family and the entire rest of his life was decided the day he was told that he was not going to be a part of a team that he believed was his true lot in life.

I remember his exact words as he sat there in the lab alone and told me this story. He said, “… and Monty didn’t know… He didn’t know that you cut the leads…. that is standard procedure….” In Bill’s giggly way, he was crying out loud as he told me this.

From that point on….I knew that the decisions Bill made in his life were driven by that one decision to exclude him from this team. Unlike many of us that could say to ourselves…. “That is their loss”…. Bill kept this pain in his heart each day…. Every decision from that day further was effected by this event.

I calculated it out one day that I spent 414 hours driving back and forth from Stillwater, Oklahoma to the plant and back each day with Bill Rivers (along with Yvonne Taylor and Rich Litzer and occasionally others that needed a ride), and over that time, I became very close to Bill, even to the point of tutoring his son in Algebra (see post: How Many Power Plant Men Can You Put in a 1982 Honda Civic?).

I say this because I know about the pain that inflicted Bill River by a rash decision based on the hearsay of someone that held a grudge. I know how his entire life was changed and how it ended for Bill Rivers as a power plant employee. I know that every decision by Bill after this date was made in response to this one decision. Anyone who experienced Bill after 1983 knows what I am talking about.

I realized that today my own decisions in life help spell out my future. How some little remark may be misinterpreted, or even properly so. I realize as I write this post that how I accept or reject these events in my life, determines the future of my family. After seeing how every event in Bill’s life after that day at the power company was determined by his experience was to his detriment, I am determined not to let the same thing happened to me…..

That is why I have taken on the philosophy in my life that no matter how my actions are misinterpreted, I am determined to remain true to myself. I know what I mean, and I mean what I say, and I say what I mean, and an Elephant is Faithful 100 %.

From Horton Hatches an Egg by Dr. Seuss

Comment from the Original Post:

Ron Kilman April 21, 2013

It’s amazing how many decisions are made based on incorrect / incomplete information (at all levels).

Posted in: Friendship, Life | Tagged: American Indian, Bill Rivers, Borg, capacitance, capacitor, Captain Picard, Carpooling, coal, Computer, Control Room, Control Room Operator, Dick Tracey, diodes, Dr. Seuss, Eeprom, Eeprom chips, Electric Company, electrostatick, Genius, Horton Hatches an Egg, Indian Meridian, Instrument and Controls, integrity, management, manhole, Oklahoma, op amp, operator, Osage, Osage Tribe, overhaul, Picard, potentiometers, Power Plant, Precipitator, rappers, reactance, Resistance is Futile, resistor, Results, smokestack, Star Trek, Stillwater, transformer, transistor, Trust, vibrators, violet, Vo-Tech

Moon Walk in a Power Plant Precipitator

By Plant Electrician on September 22, 2019 | Leave a comment

Originally Posted May 25, 2013;

Just because there isn’t any smoke pouring out of the smoke stacks at a Coal-fired Power Plant, it doesn’t mean that the plant is offline. The power plant where I worked as an electrician in north central Oklahoma had two large Buell (later GE) electrostatic precipitators. This is what takes the smoke out of the exhaust. The smoke is referred to as “Fly Ash”. The electrostatic precipitator when running efficiently should take out 99.98% of the ash in the exhaust. When running with excellent efficiency, the exhaust can have less ash than dust in the air (or 99.999%).

Sonny Kendrick, the electric specialist and Bill Rivers an electronics whiz were my mentors when I joined the electric shop. These two Power Plant Men taught me how to maintain the precipitator. I wrote about the interaction between these two men in the post: Resistance in a Coal-Fired Power Plant. It is funny to think, 30 years later that the skills they were teaching me would determine my career for the next 18 years. You see….. I later became the Precipitator guru of the power plant. I once thought it was sort of a curse to become good at one thing, because then you were kind of expected to do that the rest of your life.

When I first joined the electric shop and they were deciding who was going to fix all the manhole pumps, the electrical A Foreman replied by saying, “Let Kevin do it. He likes to get dirty.” At that point… I think I understood why they really wanted me in the electric shop. Charles Foster had mentioned to me when I was a janitor and he had asked me if I would consider being an electrician because I cleaned things so well, and a lot of being a Power Plant electrician involved cleaning… Now those words took on their full meaning.

I knew I was destined to work on the precipitator from the beginning. Sonny had been banished to work on only the precipitator, as Bill Rivers had made clear to me when I was still a janitor (see the power plant post: Singing’ Along with Sonny Kendrick). I was his chance to be lifted from the curse that had been placed on him by our Electrical Supervisor, Leroy Godfrey. I had accepted that. I knew that I would eventually be the one to maintain the precipitators from day one.

So, here I was… One month before becoming an electrician, I had a near death experience inside the precipitator (See the post: Angel of Death Passes by the Precipitator Door). Now I was going into the precipitator again with Bill Rivers. I think at that time we were just wearing half-faced respirators and no fly ash suit. Just a rain suit.

A man wearing a half faced respirator — not me… just an image I found on Google Images

Not a lot of protection….

I followed Bill Rivers into the precipitator while it was offline for overhaul. I had my flashlight securely strapped around my neck with a string. I had a small notepad with a pen tied to it also around my neck for taking notes.

A notepad like this

So, as Bill entered the dark cavern of the precipitator, I found that we had just entered a new world. It was dark… Like the dark side of the moon. We were at the intake of the precipitator and we were walking on top of the ash as it was more like sand at this point. We just left footprints where we only sank about 2 inches into the pile of ash that had built up there.

Bill took his flashlight and shined it up between two sets of plates that are exactly 9 inches apart. He swung the light up toward the top of the precipitator 70 feet above. At first as the light was reflecting on all the white ash, I was blinded to the detail that Bill was trying to show me. Eventually I realized that he was pointing his flashlight at a clip. There was some kind of a clip that held one plate in line with the next.

Once I had confirmed to Bill that I saw where he was looking, he lowered the flashlight to about 45 feet above us, where there was another clip. Then even lower. About 10 feet above us. A third clip. — Now at this point… I was almost ready to resign myself to another lesson like the one I had learned from Ken Conrad as he had poured his heart and soul into his description of how to lay the irrigation hose and position the water gun 3 years earlier (See, “When a Power Plant Man Talks, It pays to Listen“), then I remembered…. “I know this is boring… but you have to learn it….” A Phrase that I made good use of 15 years later when I was teaching switching to a group of True Power Plant Men that would find themselves equally bored with the necessary material they had to learn.

Bill explained….. Each clip must (and he emphasized “Must’) be aligned with the next plate. Every clip must be in their place. Don’t start up this precipitator until this is so. Ok. I understood…. Let’s see… there are three clips between each of the four plates… or 9 clips per row…. and there were 44 rows of plates for each section…. and there were 6 sections across the precipitator, and 7 sections…. hmmm… that added up to oh… only 16,632 clips that I needed to check during each overhaul… ok… I took a note on my notepad…

Bill explained….. Clean each insulator. there is one on the side of each bottle rack holding all the wires in place.There were only 4 for each 2 hoppers. there were 84 hoppers, Great. Only 168 insulators on the bottle racks…. Then he pointed out that there were also insulators on the precipitator roof. two on each section over each pair of hoppers… One on the tension house on one connected to the transformer, or 336 more… making a total of 504 insulators that need to be inspected and cleaned during each overhaul.

Bill explained…. you need to check each of the wires to make sure they aren’t caught on a clip or broken. Let’s see…. there were 44 rows of wires in each section… with 16 wires in each row…. and there were 6 sections across each set of hoppers…. that came out to exactly 29568 wires that needed to be inspected during each overhaul.

Bill explained…. each rapper on the roof needs to be tested to make sure they are rapping with the correct force. That meant that they each needed to lift at least 6 inches before they dropped the 15 pound slug (to knock the ash off of the plates into the hoppers below. Hmm… For each 4 hoppers, there were 6 rows of 12 rappers each. There were two sets across the precipitator and there were 7 sets of rappers. In other words…. there were 672 rappers on the roof of the precipitator.

Bill explained…. each vibrator on the roof needs to be calibrated to provide the maximum vibration to the wires inside the precipitator in order to make sure they cleaned the wires of any ash buildup as they are responsible for delivering the static electricity to the precipitator that collects the ash on the plates. In order to calibrate them, you had to adjust the gap between the main bracket and the magnetic coil to within a few thousands of an inch… I don’t remember the exact setting now… but we used a set of shims to set them correctly. There were 12 vibrators for each of the two sides of each of the seven sections of hoppers. This came out to 168 vibrators that need to be adjusted during each overhaul. Oh. And each vibrator had an insulator connected to the wire rack…adding 168 more insulators.

So, we had 16,632 clips, 672 insulators, 29568 wires, 672 rappers and 168 vibrators that all needed to be in good working order at the end of each overhaul (on each of the two units). Throughout the years that I worked inspecting, adjusting and wrestling with plates, clips and wires, I became personally attached to each wire, insulator, clip, rapper and vibrator. For a number of my 18 years as an electrician, I was the only person that entered the precipitator to inspect the plates, wires, clips and internal insulators. Some of my closest friends were precipitator components. Each diligently performing their tasks of cleaning the environment so that millions of people wouldn’t have to breathe the toxins embedded in the ash particles.

We hired contractors to go into the precipitator to help me. I would spend an entire day teaching them how to wear their full face respirator and fly ash suit…. How to inspect the clips and wires…. how to walk along the narrow beams along the edge of each row of 84 hoppers on each unit to find and repair the things that were not in proper alignment. I would check out all their equipment and give them their safety training only to have them not show up for work the next day.

Contractors would gladly be paid to weld in the boiler hanging from a sky climber in the middle of space 200 feet above the bottom ash hopper, but give them one day in the precipitator and they would rather be thumbing a ride to Texas…. I should have felt insulted… after all this was my home…. Mark Fielder the head of the welders once called it my “baby”. I knew he had never had to endure the walk on the moon when you entered the tail end of the precipitator and found yourself buried waste deep in light fly ash. I told Mark Fielder to not call the precipitator my baby… Not until he could find a contractor that was willing to work alongside me inside it. He apologized. He explained that he meant it with affection.

At the back end of the precipitator, you just sank to the bottom of a pile of fly ash when you stepped into it. The fly ash particles there are less than 2 microns in diameter. That meant that they would infiltrate your filter and bounce around inside your respirator on their way down into your lungs. Building up a permanent wall of silicon in your innards that will be there until the day you die.

I noticed that after a few days of working in the precipitator that I would feel like I had the flu. This would happen after I would smell this certain scent in the precipitator that would develop after the unit had been offline for a week or so. I noticed that when I burped, I could taste that smell in my mouth. I also noticed that if I had to pass some gas, that the smell would also include the smell that I was experiencing in the precipitator.

I didn’t think much about it until one day when I went to the tool room and Bud Schoonover told me that they were out of the regular hepa-filters for my respirator. So, instead he gave me a pair of organic filters. They had a different carbon filter that absorbed organic particles. I said, “Thanks Bud.” and I headed out to climb into the precipitator to continue my inspection of some 30,000 wires, and 16,000 clips.

To my astonishment, when I used the carbon filters right away, I didn’t smell the acrid smell. The flu symptoms went away, as well as the smelly burping flavors. Not to mention (oh.. but I am) the passing of gas without the additional smell of precipitator internals…. Crazy as these seems… I became obsessed with finding out why.

You see… at the same time that this particular smell arose in the precipitator, any ash that was built up on the plates would clump up and with a simple bang on the plates with a rubber mallet would cause all the ash to fall off leaving a perfectly clean plate. Before this smell was there, you could bang on the plates all day, and the ash would remain stuck to the plates like chalk on a chalkboard.

I had our famous chemist (well…. he was famous to me… see the post: A Power Plant Doctor Does a Jig in a Puddle of Acid), come out to the precipitator to give it a whiff. He said it had some kind of a sewer smell to it…. I didn’t expand on my personal sewer experience I had had with it, though I did tell him about the burping….

He encouraged me to have the safety department come out and test it to see if they could identify the chemical that was causing this smell. You see…. It was important to me because if we could pin this down, then we might be able to inject a substance into the precipitator while it was online to clean it without having to bring the unit offline if the precipitator was to become fouled up.

There was a young lady from the safety department (I think her name was Julia, but I can’t remember her full name). She came from Oklahoma City and gave me some monitors to put in the precipitator while the smell was present to try to track down the chemical. Unfortunately, we never found out what it was. In the meantime, I had learned all I could about Van Der Waals forces. This is the week molecular force that would cause the ash to stick to the plate.

I studied the chemical makeup of the ash to see if I could identify what chemical reactions could take place… Unfortunately, though I knew the chemical makeup of the ash, the chemicals were bound in such a way from the high temperatures of the boiler, that I couldn’t tell exactly how they were arranged without the use of an electron microscope. I wasn’t about to go to Ron Kilman (who was the plant manager at the time) and ask him for one. I had already upset him with another matter as you will learn in a much later post.

So, I just continued wearing the organic filters. This gave me the strength to continue my inspections without the flu-like symptoms. Later on, I taught Charles Foster and Scott Hubbard how to maintain the precipitator. When I finally left in 2001, I know I left the precipitators in competent hands. They knew everything I did.

One main lesson I learned from my experience as the precipitator guru is this….. You can be a genius like Bill Rivers or Sonny Kendrick….. when you are given a particular job to do and you do it well, you are usually pigeon-holed into that job. One of the main reasons I write about Power Plant Men is because they are for the most part a group of geniuses. At least they were at the plant where I worked in North Central Oklahoma. They just happened to stumble onto the jobs that they had. They would probably spend the rest of their working career doing what they did best…. never moving onto something where their genius would shine and others would know about them… That is why I write about them.

Do a job well, and you will be doing it until the day you die…. that’s what it seemed to be. I didn’t feel like I was banished to the precipitator as Sonny Kendrick was by Leroy Godfrey, who did it consciously. No. I was “banished” to the precipitator for the next 18 years because I was good at it. I loved it. I may have mentioned before, but I had a personal relationship with the 168 precipitator control cabinets.

I had carefully re-written the programs on each of the eprom chips on the Central Processing Unit in each cabinet to fit the personality of each section of the precipitator. I had spend hours and hours standing in front of each cabinet talking to them. Coaxing them. Telling them that they could do it with my handheld programmer in hand…. helping them along by adjusting their programming ever so slightly to give them the freedom that they needed to do their job. If they had been human……. I would have given them names like “Mark”, or “Thomas”, or “Millie”. Instead, I knew them as 2E11 or 1B7. But they were each my friends in their own way.

You see… I look at friends like this…. It’s not what they can do for me…. It’s “what can I do for them?” I have had some precipitator cabinets that I have given extra attention because they seemed to need it more than the others, only to have them crap out on me. I wouldn’t have done anything different if I had known all along that they wouldn’t pull through.

I have my own understanding of who I should be. My wife may call it “stubbornness”, and that may be what it is. I would try and try to coax a control cabinet to do what it was created to do, only to have it fail over and over again…. What was I going to do? Give up? How could I do that to a friend? I would tell the cabinets that were especially difficult (when I was alone with them – which was usually), “You create your own Karma. That isn’t going to change who I am.”

Today I am called an IT Business Analyst. I work for Dell Computers (now I work for General Motors). It is an honor to work for a company that serves the entire world. I see the same pattern. When you do something well, when you love your work and become attached to it, you become pigeon-holed into a particular job. You become invaluable. Almost irreplaceable. People look to you for answers. They are comforted to know that someone who cares is taking care of business. I am glad to be able to serve them.

Weeks before I left the power plant, Bill Green, the plant manager asked Jim Arnold (the supervisor over maintenance) again….. “What degree is Kevin getting again?” Arnold replied, “Oh. nothing anyone wants.” (an MIS degree from the college of business at Oklahoma State University). Bill was concerned that if I left they wouldn’t have anyone to take care of the precipitators. No. I wouldn’t do that. Like I said… Each of the 168 precipitator control cabinets were my friends…. I had given them the best guardians I could find… Scott Hubbard and Charles Foster.

Scott Hubbard

Charles Foster

Recently Charles Foster has retired from the plant, and his health is not good. His son, Tim Foster has taken his place. One of the last things Tim has told me recently was that he was going with Scott Hubbard to work on the precipitator. I wanted to reply back to his e-mail… take care of my friends Tim…. I know Scott understands….

Each clip, each wire… I often dream about them…. Row after row….. looking 70 feet up, then down… swinging my flashlight in the darkness. Betty, Tom, Martin…. all the clips on this plate are in their place…. Sandy, David, Sarah… lined up correctly… Fred, Chuck, Bill…. good… good… next row….

Posted in: Friendship, Thoughts | Tagged: Ash, Bill Green, Bill Rivers, Bud Schoonover, Buell, Business Analyst, business college, Charles Foster, clips, Dell, Electric Company, Electrician, electrostatic precipitator, flashlight, fly ash, GE, guardian, guardian angel, half faced respirator, Hopper, insultors, irrigation, Janitor, manhole pumps, MIS, notepad, Oklahoma, Oklahoma State University, Power Plant, Precipitator, rappers, smoke, smoke stack, smokestack, Sonny Kendrick, vibrators, wires

Power Plant Blackbirds and Smokestack Jumpers

By Plant Electrician on August 28, 2019 | Leave a comment

Originally posted November 16, 2013:

Most of us have watched the Alfred Hitchcock Thriller “The Birds” at least once in their life. When I was young it used to come on TV around Thanksgiving about the same time that Wizard of Oz would rerun. What a mix of movies to watch after eating turkey in one of our Italian relative’s house in Kansas City as I was growing up. During those years of sitting passively by watching the birds gang up on the humans, it never occurred to me that some day I might take part in my own private version of “Blackbird Wars” amid the playground equipment found in a typical Coal-fired Power Plant in North Central Oklahoma.

Blackbirds in Alfred Hitchcock’s “Birds”

A tale like this is best starts out with the line, “It was a cold and windy night…” That was close. My story begins with, “It was a dark and cold winter morning…” Unit 1 was on overhaul. That meant that it was offline while we climbed inside the inner workings of the boiler, precipitator, Turbine and Generator in order to perform routine yearly maintenance. Being on overhaul also meant that we came to work earlier in the morning and we left later in the evening. Since it was in the middle of the winter, it also meant that we came to work in the dark, and we left for home in the dark…. These were dark times at the Power Plant for those of us on long shifts.

At this time in my career I was working on Unit 1 precipitator by myself. I had my own agenda on what needed to be done. Sometimes I would have contractors working with me, but for some reason, we had decided that we didn’t need them for this overhaul. Maybe because it was an extra long one and I would have plenty of time to complete my work before it was over.

I can remember grabbing my tool bucket and heading for the precipitator roof to begin my day of calibrating vibrators and checking rappers to make sure they were operating correctly. I was wearing my winter coat over my coveralls because it was cold outside. In Oklahoma, 20 degrees was pretty cold. 20 degrees in Oklahoma with 30 mile an hour winds gives you a pretty low wind chill…. which chills you to the bone.

I had a red stocking liner on my hardhat that wrapped around my forehead that kept my head warm.

A red hardhat liner like the one I was wearing

All bundled up, I left the shop through the Turbine Room basement and headed toward the breezeway between Unit 1 and 2. I climbed the stairs up the Surge Bin Tower until I had reached the landing where you can go to either Unit 1 or 2 precipitator roofs. Using rote memory after having performed this same task every morning for the past month and a half, I turned toward Unit 1.

The Precipitator is a big box that takes the ash out of the exhaust from boiler. It drops the ash into hoppers where it is transported to the coalyard into large silos, where trucks haul it away to make concrete for roads and buildings. The precipitator roof is full of large transformers (84 of them), 168 vibrators that shake the 29568 high voltage wires in the precipitator, and 672 rappers that bang on the 7560 metal plates. The transformers are used to collect the ash using “static cling”. The rappers and vibrators are used to knock the ash into the hoppers.

The Precipitator roof is a very noisy place when all the rappers and vibrators are running. It is covered with a sheet metal roof. It wasn’t originally designed that way, but someone with foresight thought that it would be a great idea to insulate the precipitator roof. In doing so, they needed to add a roof to keep the insulation from being exposed to the weather.

It wasn’t noisy that morning as I reached the ladder and quickly tied my tool bucket to a rope hanging down from above. It was dark, and lonely and quiet. Well. There were some lights, but this morning, the light from the precipitator didn’t seem to shine much as I pulled myself up the ladder. When I reached the top I turned around and sat at the top of the ladder and began pulling my tool bucket up.

It was at that moment when I realized that something was much different than usual. I had spent a couple of years working on the precipitator roof and inside and I had become friends with each of the transformers, and I even knew the unique sounds of each of the vibrators. I could tell when a rapper wasn’t rapping correctly. There would be a slight sucking sound as the rapper was drawn up into the cylinder…. There was a slight pause, then it would drop onto an anvil that was connected to the plate rack. But this morning everything was turned off. Yet, I could feel that there was something wrong.

There was a strange hum. I was trying to place it as I grabbed each foot of rope and pulled my bucket closer. There was more than a hum… There was a weird muffled sound all around. I had a chill down my back as if I was being watched. I quickly grabbed the handle of the bucket and stood up and turned around. I was ready to spot whoever it was that was spying on me!

What I saw immediately sucked the breath out of me. The precipitator is 200 feet wide and 120 feet long. Every inch as far as I could see was black. Not just the equipment, but the air itself.

During the night a cold wave had moved into Oklahoma from the north. With it, it had brought a horde of blackbirds. Thousands upon thousands of them. They had found refuge from the cold blasting wind in the precipitator roof enclosure. Safe and warm and undisturbed….. That is, until I arrived.

It was as if the blackbirds had discovered me at the same time I had found them. They suddenly burst into a frenzy.

Comment from original post:

Ron November 16, 2013

Great story!
As I read this, it reminded me of the time (55 + years ago) I climbed the ladder with my “Royal Ambassador” leader into my church’s steeple. Then we pulled the “tool” up we had tied to the rope. Pigeons had chosen this location to raise their families. The inside of the steeple would become covered in pigeon poop and my help was requested to dispatch the birds (and clean up the steeple). The dispatching “tool” we used was a “Benjamin Pump” BB gun! We had a great time getting rid of the steeple poopers.

Power plants are great places to make life-long memories. Thanks for posting yours!
2. Grandpa Guy November 21, 2014
  
  Here in Rochester we understand exactly what you put up with in the roof. Every winter tens of thousands of crows make downtown their home away from the cold and owls in the countryside. Many trees have more crows in the winter than leaves in the summer. Honest. It can be spooky, and sticky, walking under trees when occupied.
  
  Thanks for the story.

Posted in: Adventure, Biography, Humor | Tagged: Alfred Hitchcock, blackbird, Boiler, coal burner nozzle, Electric Company, Electric Shop, Electrician, electricity, ground grid, hard hat warmer, hardhat, hoppers, lightning Rod, Oklahoma, plates, playground, Power Plant, Precipitator, rappers, smokestack, The Birds, vibrators, wires, Wypalls

Power Plant Paradox of Front to Back and Back to Front

By Plant Electrician on August 16, 2019 | 1 Comment

Originally posted February 8, 2014:

After the downsizing in 1987 some new engineers were assigned to the coal-fired Power Plant in North Central Oklahoma. I wasn’t used to an engineer actually pausing to listen to what I was saying. I remember the first time I said something sort of out of the ordinary and Doug Link stopped and asked me why I thought that. The usual response was to roll their eyes as if I was some dumb electrician that almost knew how to lace my boots correctly… Ok… Lacing your boots isn’t as easy as it looks…. especially when you put them on in the dark in the morning before you leave the house.

I chose this picture because they look like my boots, only I never wore the toes out so that you could see the steel toes.

Now, before you think “Front to Back and Back to Front” has to do with lacing up my boots, you are mistaken.

Back to Doug Link. I was surprised when he actually stopped and asked me to explain myself. I know I had said something that had sounded a little bombastic, but what I believed to be true anyway. So, I sat down and explained it to him. It was something that ran contrary to what a person might think was logical. Once I explained it to him, he said he understood what I meant. — Wow. What kind of new engineers are they breeding out there (I thought). Well he did go to Missouri University at the same time I did, we just didn’t know each other at the time.

Doug Link

Another engineer that showed up at the plant was Toby O’Brien. Even the maintenance department recognized right away that Toby would listen to you. Not only would he listen to the crazy rantings of an electrician like me, but he would also ask advice from mechanics! And… (now brace yourself for this) Welders! I believe that if he could corner a janitor, he probably would have listened to them as well…. because… well… I was just a janitor pretending to be an electrician, and he listened to me all the time.

So, what does this all have to do with “Front to Back and Back to Front”? Well. Almost nothing. Except that these new engineers knew about a secret that we were all keeping from George Bohn, another engineer that I talked about in the post “Bohn’s Boner and the Power Plant Precipitator Computer” In that post we had kept from George that the computer had an extra drive partitioned on the hard drive for a while. In this post, I will talk about a much more significant secret (at least in George’s eyes).

With the reorganization Terry Blevins worked on one precipitator and I worked on the other.

Terry Blevins

For those of you who don’t know, the precipitator is what takes the “smoke” out of the exhaust from the boiler so that it can be collected in hoppers and sent up to the coalyard to silos where trucks would come and haul it away to make highways.

Fly Ash Hoppers underneath the precipitator

The electric Supervisor Tom Gibson thought that a little competition would be good between the two teams to see who could make their precipitator work the best. Only it didn’t work out that way. Terry had one way of doing things and I had a completely opposite way of approaching a problem. Terry would study a problem. Analyze it, and do everything he could to understand what was going on. Then he would go out and make a major change. I on the other hand would make incremental small changes and observe the effects. Then work toward what seemed to work best.

Between the two of us approaching a problem from completely different points of view, we were able to come up with solutions that apart I don’t think either of us would have ever thought about. So, we became a team instead.

Now for the boring part of the story. I am going to explain Back to Front….. With the new digital controls, we could set up the controls so that each of the 84 precipitator transformers could be backed down one KV (kilovolt) at a time in order from the front cabinets to the back ones. Then it would start from the front again backing the power on the cabinets down slightly each time. — I know this is boring. The front of the precipitator is where the exhaust enters the precipitator. The back is where the exhaust leaves the precipitator.

The cabinets would do this until the amount of ash going out of the smoke stack hit a certain limit that was 1/4 of the legal limit (the legal limit was 20% opacity. So, we controlled the cabinets to keep the opacity at 5%). Opacity is the amount of light that is blocked by the ash coming out of the smokestack.

Well, if the opacity went too high (say 6.5%) the back cabinets would start powering all the way back up, and it would work its way toward the front of the precipitator from the back until the opacity went down below the set limit. — sound good? Well… after running this way for a while we realized that this wasn’t so good.

What ended up happening was that the front cabinets which normally collected 90% of the ash were always powered down and the back cabinets were powered up, because they would power up each time the opacity would spike. So the ash collection was shifted from the front to the back. This meant that if there was a puff of ash going out of the stack, it probably came from the back of the precipitator and there wasn’t anything that could be done to stop it.

We asked George if we could reverse the Front to Back powering down of the cabinets so that it went from Back to Front. That way the back of the precipitator would be powered down most of the time and the front would be powered up. This would keep the back half of the precipitator clean and if there was a need to power them up because of some disturbance in the boiler, the back of the precipitator would be in good shape to handle the extra ash.

George, however, insisted that since the EPA had tested the precipitator with the new controls when they were setup to go from front to back, we couldn’t risk changing it, or the EPA could come back and make us put scrubbers on the plant. We were grandfathered into not needing scrubbers and we didn’t want to go through that mess and cost that would have raised electric rates for everyone.

This was frustrating because we could easily see that every hour or so we would be sending big puffs out of the smokestack on the account of the inherent flaw of backing the cabinets down using a Front to back method. Even though we knew the engineers would blow their top if they found out, we called the EPA one day and asked them about it. The EPA said they didn’t care as long as the precipitator wasn’t physically being altered and we were adjusting the controls to maximize operations.

So, one day when I was in the Precipitator Control Room, I walked over the main processor unit in the middle of the room where the seven sections of 12 cabinets each plugged in. I took the A row cable and swapped it with G. I took B and swapped it with F, C and swapped it with E. D I just left it where it was since it was in the middle.

Then I walked to each Cabinet in a section and swapped the eeprom chip from cabinet 1 and put it in 12. And from cabinet 2 and put it in 11, and so on. Without leaving the precipitator control room, I had just changed the order of the cabinets backing down from “Front to Back” to “Back to Front”. As far as the control room was concerned, nothing changed (unless you looked closely at the voltages on the cabinets on the computer. The front cabinets usually were around 30kv while the back were closer to 45kv).

So, now that the cabinets were backing down from back to front, everything worked a lot smoother. No more hourly puffs and wild power swings as cabinets were released. As long as George didn’t know, he was happy. The precipitator suddenly was working very well. So well in fact that one winter while the unit was at full load (510 Megawatts), the precipitator was using only 70 Kilowatts of power and the opacity was well below the 5% threshold.

The space heaters in the precipitator control room were using over 120 kilowatts of power. More than the entire precipitator. This is important because normally the precipitator used more power than any other piece of equipment in the plant. It was not unusual before we had the back down working for one precipitator to use 3 Megawatts of power. That is 3,000 Kilowatts.

Then one day in 1992 an electrical engineer Intern (who later became a full time engineer) came in the precipitator control room with George Bohn while we were calibrating the cabinets one at a time. George began explaining to Steve Wilson how the precipitator controls worked. We were in the front section (G row). George introduced Steve to us and started explaining to him about the back down and how it worked.

Steve Wilson

Just then, the cabinet that he was showing him powered up. — oops. This was a front row cabinet and in George’s mind, they should be the last to power up. He looked around and could see that the cabinets in F row were still powered down. I thought, “The jig is up.” George said, “That’s not right! That shouldn’t happen!” (Ok George. We’ve only been doing this for 3 years and you are just now noticing?).

So, I asked him what the problem was (knowing full well). He explained that the cabinet in G row had just powered up. — You could tell when a cabinet was powered down because a certain light in the lower left corner of the display would be on. I looked at the cabinet and the Primary current limit light was lit. Obviously not in the back down mode.

So, I said this, “George, this cabinet still is in the back down mode. You just can’t tell because it is also hitting the primary current limit and both lights won’t light up at the same time.” — Geez… I thought…. would he believe this hair brain explanation? George nodded. Then he went on to explain to Steve what I just said to him as if it was something he knew all the time (even though I sort of just made it up).

A short time after Steve and George left, I found Steve and explained to him that we really do power down the precipitator from back to front instead of front to back, because front to back doesn’t work, and I explained to him why it works better and why we don’t tell George Bohn. Steve was another sensible engineer that knew how to listen and learn. I enjoyed the little time I spent working with him.

Well…. The efficiency of the precipitators caught the attention of EPRI (the Electric Power Research Institute), and they wanted to come and study our precipitator controls. Not only the back down feature we were using but also a pulse capability that Environmental Controls had that allowed you to power off for so many electric pulses and then power on again.

So, when the EPRI scientists showed up to test our precipitators for a couple of weeks trying the different modes of operation, I knew that it was important for them to really understand how we were operating the precipitators. So, after George had taken them to the computers in the control room and explained the back to front back down mode. I took them aside one at a time and explained to them that even though the computer looked like it was backing down from front to back, it was really backing down from back to front.

I explained to them why we had to do it that way, and I also explained to them why we didn’t let George know about it. They all seemed to understand, and for the next two weeks no one from EPRI let the cat out of the bag.

To this day I don’t think George knew that we had swapped the direction of the back down from “front to back” to “Back to front”. At least not until he reads this post.

Comments from the original post:

Ron February 8, 2014:

Now I know why George came into my office one day and begged me to have you committed!

Great story!
1. Plant Electrician February 8, 2014:
  
  Yeah. That’s one of the reasons. 🙂
Monty Hansen April 2, 2014:

I really appreciate how you describe the two methods of problem solving, and how together you could come up with solutions that neither one of you may have thought of.
1. Plant Electrician April 2, 2014:
  
  Thanks for your comment Monty. It was annoying at first. I kept wanting Terry to see my point of view. Then I started seeing the benefit of taking both approaches.

Posted in: Adventure, Biography, Humor | Tagged: Back to Front, cabinet, cabinets, Coalyard, Computer, control cabinet, Control Room, Digital controls, downsizing, Electric Company, Electric Shop, Electrician, engineer, Environmental controls, EPA, fly ash hoppers, Front to Back, intern, Janitor, Joke, killowatts, megawatts, Oklahoma, opacity, Power Plant, Precipitator, secret, smokestack, steel toed boots, transformer, work boots

Making Friends from Foes – A Tale of Power Plant Woes

By Plant Electrician on August 5, 2019 | Leave a comment

Originally posted April 25, 2014:

Later in life, thinking back to when I was young, I sometimes wonder at how my first real friend, Mark Schlemper remained my friend throughout my childhood. I remember as a boy, there were times when I wasn’t the friendliest friend. Sometimes I was downright selfish. Mark, on the other hand, was always considerate. Not in an Eddie Haskell way, but in a sincere way. I learned a lot about being a kinder person from Mark, and I’m forever grateful.

Mark Schlemper with his Mother. Two very good people.

My favorite picture of Mark Schlemper with his Mother

I think if Mark had not been my friend during my childhood, then this story would have a very different ending.

Last Friday (April 18, 2014), I posted a story called “Vertan or Sand and Making Enemies of a Power Plant Man“. At the end of that post I explained that I had become the enemy of a team leader during the “We’ve Got The Power” program. I explained this program in the post: “Power Plant ‘We’ve Got The Power’ Program“. With all that said, here is the story:

I was a plant electrician at a coal-fired power plant in North Central Oklahoma when we took part in the “We’ve Got The Power” program. At the time, I was in charge of maintaining the Unit 1 precipitator. The precipitator is what takes the ash out of the exhaust from the boiler, so that you don’t normally see smoke coming out of a Power Plant Smokestack.

My bucket buddy in the Electric Shop, Diana Brien was on a team that tried an experiment on the Unit 1 precipitator by injecting sand into the intake duct in the hope that it would increase the performance. I didn’t put much faith in the experiment, because it was based on something that had happened almost a year earlier when sand was burned in the boiler in order to burn off the oil that had been soaked into the sand.

I hadn’t seen any sand build up in front of the precipitator during the next overhaul, and didn’t believe that any of it had been able to make it’s way through the economizer and the air preheaters to the precipitator.

Diagram of a boiler. The precipitator is after the air preheater where it is labelled “Flue gas”

When Ron Kilman asked me about it, I said that I didn’t think it would do any good, but also, it wouldn’t do any harm either, so I told Ron that I couldn’t see any reason not to do the experiment. Who knows. Maybe something unexpected would happen. — Something did, but not quite in the way anyone would have expected.

On the day of the experiment, sand was blown into the intake duct of the precipitator. When the experiment was taking place, Diana Brien sat at the precipitator computer behind the Unit 1 Alarm Panel in the Control Room. She was printing out readings every so many minutes as the experiment progressed.

At times, I walked by and checked on her to see how it was going. One time when I was standing there watching the readings on the computer, all of the sudden the Opacity shot up. Opacity is used to measure how much smoke is going out of the smoke stack. Something definitely happened to cause a large puff of smoke.

I switched screens to look at the power on each of the control cabinets. After a few seconds I found that cabinet 1A10 had zero Volts on the secondary side of the transformer. It should have been somewhere above 40 Kilovolts. The cabinet hadn’t tripped, but it wasn’t charging up the plates. Cabinet 1A10 was in the very back row of the precipitator, and when the power shuts off on the cabinet it readily lets go of the ash that had built up on it when the rappers on the roof strike the plates.

When I saw the puff occur, I knew where to go look, because this happened whenever one of the back cabinets was turned off. I told Dee that it looked like a fuse had blown on the cabinet. The ash was going to continue billowing out of the precipitator for a couple of hours if I didn’t go do something about it. So, I told Dee that I was going to go to the Precipitator Control Room and replace the fuse.

I passed through the electric shop to grab my tool bucket and headed out to the precipitator. When I arrived, I found the cabinet just as it had indicated on the computer. The fuse had obviously failed. Interesting timing. Coincidence? I thought it was. The fuses controlling the back cabinets were usually the ones that blew because we ran them at a much higher voltage than the rest of the cabinets (at the time).

This is a picture of the exact fuse I replaced, except the writing was pink instead of blue

This is a picture of the exact fuse I replaced, except the print was orange instead of blue

I quickly replaced the fuse (after attaching grounding cables to the leads, and using a pair of high voltage gloves). Then I powered the cabinet back on.

High Voltage gloves like this

I returned to the Control Room and told Dee that I replaced the fuse on cabinet 1A10. The opacity had returned to normal. I watched a few more minutes to make sure everything had stabilized, and then I left.

When Ron Kilman was evaluating the results of the experiment, he could plainly see that something strange had happened. Smoke had been pouring out of the smoke stack in the middle of the experiment. So, he asked me what I thought about it.

First of all, as a disclaimer, our team had our own experiments we had been conducting on the precipitator in hopes of coming up with money savings ideas. So, when I told Ron what had happened with the fuse blowing, I wondered if he would trust me to tell the truth, since I had my own skin in the game.

I explained in detail to Ron how the fuse had blown and that I was standing next to Dee watching the computer when the smoke started blowing out of the stack. I could tell that a fuse had blown by looking at the readings, so I went out and replaced the fuse. I told him that fuses do blow periodically in the back of the precipitator, but I couldn’t explain why it happened to fail at that particular time. After I gave him my explanation, he seemed satisfied that I was telling the truth.

I think a token amount of points were awarded to the team because something obviously had happened during the experiment, though it wasn’t clear that sand had anything to do with it. On the other hand, our team was awarded a large amount of points for increasing the precipitator performance using a different method that I may bring up in a later post. To the team that burned the sand, this looked a lot like foul play.

The leader of the team was the Shift Supervisor Jim Padgett. He became very upset when he found out that I had gone to the precipitator control room during the experiment and worked on the equipment. Our team had been awarded a lot of points that was enough to purchase the dining room table set that I have in my dining room today:

Dining Room Table received as an award from the “We’ve Got The Power” program

It became known throughout the control room and the electric shop that Jim Padgett viewed me as his enemy. The other electricians would jokingly refer to Jim as my “friend”, knowing that Jim had basically declared “war” on me. Any time someone in the shop would have something to say about Jim, they would say, “Kevin’s friend” Jim Padgett….”

When I first became aware that Jim was upset with me, I understood why. If I had been in his shoes I would probably feel the same way. It’s a rotten feeling when you believe that someone has cheated you out of something important. So, I decided up front that I was going to become Jim’s best friend. This is where I think my memory of Mark Schlemper with his patience for me as a boy helped me with this decision.

I had determined that any time Jim asked me to do something I wouldn’t hesitate to help him. It took about a year before Jim could look at me without grimacing. Finally, one day, he asked me if I would go look at something for him to see if we needed a clearance, or if it was something that could be fixed right away. It was something minor, but I knew that this was an indicator that the ice was finally beginning to melt. I was able to fix the problem on the spot, and returned to let him know.

Once we were on semi-speaking terms again, I took an opportunity one day to ask Jim if he would like to join our Computer Club. I had started a Computer Club in the Electric Shop. Anyone could join it for a one time fee of $5.00 that was used to buy shareware and disk cases. For a while I also published a newsletter letting the members of the club know what games and such we had that could be checked out.

Once Jim Padgett joined the Computer Club, it was much easier to have a regular conversation outside of the normal daily business. I had put the thought in my mind when I decided that Jim was going to become my best friend that nothing would make me happier than to be able to do something for Jim. That way, no matter what I was doing at the time, if Jim asked me to do something for him, I would drop whatever I was doing and do my best to help.

I could go on and on explaining how gradually over time, not only was Jim my friend, but Jim acted more and more as if I was his friend as well. Let me just say that the entire process took almost exactly ten years. I can remember the exact moment when Jim indicated to me that I had become his friend.

Here is what happened:

The phone next to my bed rang at 2:15 in the morning on Thursday February 17, 2000. I instantly knew what it meant when the phone rang in the middle of the night. It meant that someone at the plant was calling because there was a problem. Who else would be up on in the middle of the night? The night shift of course.

When I answered the phone, Jim Padgett said, “I hate to wake you up buddy.” I replied, “No. That’s okay. What’s up?” Jim explained that the dumper was down and a train was about halfway through dumping the coal and everything was dead in the water. I said, “Ok. I’ll be right out.”

I turned to Kelly and told her that I had to go fix the dumper. She already knew of course. I pulled on a pair of jeans, a flannel shirt, and on the way out the door, I slipped on my work boots and laced them up. Then I drove the 30 miles out to the plant.

It was just before 3:00 am when I arrived. I grabbed my hardhat from the electric shop and took the elevator up to the Control Room. Jim apologized again and told me that how the dumper acted when it shutdown. I went back down the elevator to the electric shop where I grabbed the key to the pickup truck and my tool bucket and left the electric shop into the cool night air.

Power Plants at night take on magical properties. It’s hard to explain. Lights shining from the 25 story boilers, noises from steam pipes. Hums from motors and transformers. Night Hawks screeching.

When I arrived at the coalyard, I went straight into the Dumper Switchgear where the relays that controlled the dumper were mounted. Having worked on the dumper for the past 17 years, I could troubleshoot the circuits in my sleep. — Actually, I may have done just that. It didn’t take long, and I had replaced a contact on a relay that had broken and had the Coalyard Operator test the dumper long enough to know it was going to work.

When I returned back to Control Room Jim was sitting in the Shift Supervisor’s office. I walked in and showed him the small relay contact that had caused the failure. Jim, looked at me and said something that I thought only a friend would say so casually. I won’t use his exact words, though I remember not only the exact words, I remember his exact expression. He indicated to me that he had passed some gas, and he was apologizing about it. I replied, “Well. That happens.” (No. Not the other thing that happens). I told him I was going to go home. It was about 3:40 by that time.

Jim wished me a good night, and smiling with gratitude, thanked me again for coming out. As I was going back to the parking lot, and on the way home driving through the dark, tired from being woken up in the middle of the night, I had a great feeling of peace. That brief conversation with Jim just before I left was so pleasant in an odd way that I knew we had become friends. This was such a long way from where we had been 10 years earlier when Jim had literally wanted to kill me (well, not that he actually would…).

When I arrived home, I peeled my clothes off in the utility room to keep from tracking coal all over the house. I set the small broken relay contact on the kitchen table as a token to my wife, so she could see why I was called out when she wakes up in the morning. I climbed back into bed around 4:15 to sleep for another two hours.

That morning when I arrived at the plant, the first thing I learned was that about the time that my alarm had woken me up that morning, Jim Padgett had left his shift and driven to his home in Ponca City. When he walked in the door to his house, he collapsed and died instantly of a heart attack. That would have been about 3 hours after the moment that we had said goodbye.

Jim Padgett is on the far left along with his crew of True Power Plant Men

I grieved for Jim’s wife Jane, who had worked for a while at the plant before marrying Jim, but I didn’t grieve for Jim. Something told me, and maybe it was Jim, that he was at peace. In the moment that I heard about Jim’s death, I burned the conversation we had just had that morning into my mind so that I would never forget it.

To this day whenever I know that someone is upset with me for something that I have done to them personally (which still happens occasionally), I am determined that they will become one of my best friends. I will do anything for that person if they ask (unless, of course it is to “not be their friend”). I have my childhood friend Mark Schlemper to thank for the attitude that helped me decide to reach out to Jim Padgett. Without that experience while growing up, Jim and I would never have become friends.

I would like to leave you with a song that reminds me of Jim whenever I hear it. It is called “Bright Eyes” from the movie “Watership Down”. Art Garfunkel sings it:

Note: If you are not able to watch the video above, try clicking this link: Bright Eyes, Art Garfunkel

Comments from the original post:

Dan Antion April 26, 2014

I’m glad that you were able to work through a tough situation and reach the point of friendship. although, it does make the loss harder to accept.
Jack Curtis May 6, 2014

Your story would have been a matter of course for my grandparents and immediately understood and admired by my parents. I suspect that telling it to today’s children might draw blank stares …

Midwestern values likely still include such behaviors, at least for a reasonable number of people. I doubt many folk on the coasts would identify with it. We have lost a lot and have yet to learn the price of that, seems to me.

Posted in: Biography, Friendship, Personal | Tagged: Art Garfunkel, Bright Eyes, childhood friend, coal dumper, Coal Dust, Coal fired, Coalyard, computer club, Control Room, dining room, Dumper, Electric Company, Electric Shop, fly ash, friends, heart attack, High Voltage, High Voltage Fuse, High Voltage Gloves, Jim Padgett, Mark Schlemper, Oklahoma, Pickup, Ponca City, Power Plant, Precipitator, Ron Kilman, Shift Supervisor, Shift Supervisor's Office, smoke stack, smokestack, Stillwater, Supervisor Jim Padgett, Team Leader, Watership Down, We've Got The Power

Doing Dew Point Tests and Lowering Expectations

By Plant Electrician on August 3, 2019 | Leave a comment

Originally posted May 9, 2014:

There were times when I was working at the Coal-Fired Power Plant in North Central Oklahoma when I wondered if there was anything that we couldn’t do. Surrounded by True Power Plant Men I found that when we were facing a seemingly impossible task, a Power Plant Man would come up with an extremely creative solution to the problem. One such example was during the “We’ve Got The Power” program. I talked about this program in an early post called “Power Plant We’ve Got the Power Program” so I won’t go into detail here about the program itself. I will just say that we broke out into teams to find creative ways to operate more efficiently, and to cut costs.

I was a team leader of our team, and looking back I must have had two criteria in mind when I picked the team members that would be on my team. The first would have been that they were True Power Plant Men (and woman) with a higher than average intelligence. The second criteria would have been that they were friends of mine. I say this, because everyone on my team fit the bill.

During out team meetings, Terry Blevins would often say some bombastic statement that the average person may be inclined to dismiss immediately as being absurd. I say that because I remember more than once thinking that what Terry had just said wouldn’t amount to much. As it turned out, our biggest money saving ideas were those truly bombastic statements that Terry was making. One such idea had to do with the heaters on the precipitators that kept the hoppers and the insulators on the roof too hot to collect moisture.

The Precipitator is a very large box that takes the ash out of the exhaust before it goes out of the smoke stack (how many times have I made that statement in the last two years?). Anyway, the exhaust from the boiler after the coal has been turned to ash in the fireball in the boiler contains a large amount of moisture. The last thing you want to happen is for the temperature of the flue gas to fall below the dew point. When that happens, moisture collects on the structure in a form of… well… of Acid Rain. Basically eating away the precipitator and the duct work from the inside.

Somewhere along the line, it had been determined that the dewpoint of the flue gas was not higher than 250 degrees. So, as long as the structure was at least 250 degrees, no moisture would be collected. Four heaters were mounted on each of the 84 hoppers (on each of the two precipitators) and heaters were mounted on the roof around each of the insulators that held up the wire racks on both ends.

When Terry walked into the office to attend one of our first “We’ve Got The Power” team meetings, he said, I think we could save a lot of money if we did something about the heaters on the precipitator. — He may remember being greeted with blank stares (at least from me). Um. Ok. Heaters on the precipitator. I knew they were everywhere, but I never gave them much thought.

I think Terry could tell right away that I hadn’t taken his idea seriously. I don’t know. Maybe he was bothered by the sound of my eyeballs rolling around in circles as if someone has conked me on the head. So, he explained his idea further. He pointed out that the roof heaters on just one of the precipitators used about 211 kilowatt-hours and the hopper heaters used about 345 kilowatt-hours. Together it is more than half a Megawatt of power. — This definitely caught our attention. That meant that between both of the Precipitators (since we had two boilers at our plant), we could possibly save over a Megawatt of electricity every hour we could shut down the heaters.

The plant has a similar electrostatic precipitator, only it is twice as long

The plant has a similar electrostatic precipitator, only ours is twice as long

After discussing all the aspects of the idea, we decided that in order for the idea to have any merit, we had to know if the dew point really was around 250 degrees, or was it possibly a lot lower. 250 degrees seemed high to begin with since the boiling point of water is 212 degrees. If lower, then we could have a workable idea. Originally, I wanted to tackle the task of finding the dew point. So, I went about it in a Science Experiment sort of way.

I figured that if we were able to lower the temperature of the flue gas to a known temperature below the dewpoint, and by knowing the volume of the gas, and the amount of liquid we could condense out of it, we could determine (possibly) the dew point. So, I brought my Graham Condenser to work, and Scott Hubbard and I went up to the 250 foot landing on the smoke stack with the intent of sucking a known amount of exhaust from the smoke stack while the unit was at full load.

Scott Hubbard

We would run it through the condenser while running cool water through it to lower the temperature.

The Exact Graham Condenser used in our experiment Spring 1990 (and that’s my hairy hand in this selfie)

I could measure the output of the vacuum pump by filling up an inverted Erlemeyer flask with water and then letting the flue gas displace the water. — I always loved doing experiments like this in the 9th grade science glass with Mr. Godfrey our Physical Science Teacher (Donna Westhoff, who may sometimes read this blog was in my class and sat right behind me).

An Erlenmeyer Flask (from Google Images, not from my Chemistry Lab)

Ok. Side Story, since I mentioned Donna Westhoff from the 9th grade 1974-75 school year.

I knew that Donna’s father was a fire fighter, because one day during a special outing when we were with a group of bicycling Junior High School students and a teacher, we stopped at Donna Westhoff’s house to get a drink of water. On the walls in her house were different types of fire fighting treasures. Donna explained that her father was a fire fighter… That was the Spring of 1975 in Columbia, Missouri

Fast forward 16 years later (1991) at the Power Plant in the middle of nowhere in North Central Oklahoma. Just about a year after the story I’m telling now…. I left the logic room and went to catch the elevator to the Control room. When the doors opened, Tony Mena was in there with a bunch of college age students giving them a tour of the plant. I entered the elevator and turned around to face the door as it closed.

As I was standing there, I suddenly became aware that the person standing next to me was staring right at me. So, I turned to see who it was. Standing next to me was someone that looked very familiar wearing a big grin as if she knew who I was. I recognized her, and while my mind was going through filing cabinets of memories trying to index this particular person, I asked her, “Don’t I know you?” She shook her head and said, “I’m Donna Westhoff!”

A High School picture of Donna Westhoff who is on the Lower Left

As the elevator door opened and we stepped out, Donna and I began talking about what we were both doing there. She was surprised to find that I had become an electrician at a power plant instead of some kind of scientist in a lab somewhere. Donna was going to school in Stillwater where one of the best Fire Fighting Schools in the country is found. Following in her father’s footsteps, I thought. After a while I could tell that Tony was getting a little perturbed that the wisdom he was imparting about the fire protection system on the Turbine Generator wasn’t being absorbed by Donna, so I cut our conversation short. It turned out that a very good friend of hers lived just two houses from where we lived, and her friend’s mother was my landlord. Peggy Pickens.

Ok. End of the side story, and another example of how I occasionally run into friends from my childhood in the most unexpected places (see the post: “Relay Tests and Radio Quizzes with Ben Davis“).

So. Scott Hubbard and I tried using the Graham Condenser and the Erlenmeyer Flask, but we quickly found out that this wasn’t big enough, to capture a large enough quantity. So, we increased the size of the condenser by winding a garden hose around inside of a water bucket and filling it with ice. Then we captured all the water that condensed in the hose.

A 5 gallon water bucket we used as our condenser with a garden hose and ice

When it finally came down to it. Even though it was fun trying to do this experiment halfway up the 500 foot smoke stack, I never was able to figure out how to calculate the dew point given the data I had collected.

That’s when we decided to look at dew point sensors in the parts catalogs. If we could stick a probe down into the precipitator and measure the dew point directly in the flue gas, that would be best. After looking at a few in the catalog, Terry Blevins said he thought he could make one. So, he went to work.

Terry Blevins

The next day he came in with an inch and a half conduit with hoses hanging out the back and a homemade sensor on the other end. I won’t go into detail how the sensor was built because some day Terry may want to patent this thing because, as it turned out, it was so sensitive that it could detect my breathe from about a foot away. If I breathed out of my mouth toward the sensor, it would detect the moisture in my breath. This was perfect!

We went to work on the roof of the precipitator sticking the probe down into different sections of the precipitator. It not only measured the moisture, it also had thermocouples on it that we used to accurately measure the temperature of the sensor as we varied the temperature by blowing cold air through the conduit using the same ice bucket and hose from before.

I could go into a lot of detail about how we performed our experiments, but it would only excite me and bore you. So, let me just say that we came up with two very important results. First of all, at full load when the humidity outside was at 100% the dew point was around 150 degrees! A full 100 degrees below what the plant had originally assumed. This was very important, because a lot of energy was spent trying to keep the flue gas above 250 degrees, and just by lowering it down to 210 degrees, still a safe amount above the dew point, that extra energy could be used to create electricity.

The second thing that we discovered was that the middle sections of the precipitator was a lot cooler inside than the outer fields. We realized that this was caused by the air preheater coils that rotated between the flue gas and the Primary Air intake duct. This took the last amount of heat possible from the exhaust and transferred it to the air going into the boiler so that it was already hot when it was used to burn the coal. Because of the way the air preheater coils rotated, the part of the duct toward the middle of the precipitator was a lot cooler than the air on the outside.

Diagram of a boiler. See the Air Preheater? Flue Gas on one side and ambient air on the other

Lower temperatures in the precipitator increased the performance, so we decided that if we could mix the air around as it was going into the precipitator so that the outer edges were cooler, then it would increase the overall performance. One suggestion was to put a mobile home in the duct work because in Oklahoma it was a known fact that mobile homes attracted tornadoes and it would probably cause a tornadic reaction that would mix up the flue gases. — We just couldn’t figure out how to convince management to put a mobile home in the duct between the economizer and the precipitator.

Thanks to Terry’s handy dandy Dew Point Sensor, we were able to prove that the hopper and roof heaters could be lowered to where we set the thermostat at 180 degrees. At that setting the heaters that used to always run at 250 degrees would remain off anytime the ambient temperature was above 45 degrees. In Oklahoma, that is most of the year. This turned out to save over $350,000 per year in energy savings at a cost of about 1.5 cents per kilowatt-hour. Not to mention the unknown savings from being able to lower the flue gas temperature by 40 degrees.

Posted in: Biography, Friendship, Humor | Tagged: Acid Rain, Air Preheater, Boiler, Columbia Missouri, condenser, Control Room, Dew Point, Dew Point Sensor, Donna Westhoff, economizer, Electric Shop, Electrician, elevator, Erlenmeyer Flask, fire fighter, flue gas, friends, Godfrey, Graham Condenser, hopper heaters, Oklahoma, orange water cooler, Power Plant, Precipitator, Primary Air Fan, roof heaters, Rubbermaid water cooler, Safety, Scientific Method, scott hubbard, smoke stack, smokestack, Stillwater, Team Leader, temperature, Terry Blevins, True Power Plant Men, vacuum pump, water bucket, We've Got The Power

When Power Plant Men Talk… It Pays to Listen

By Plant Electrician on January 23, 2018 | Leave a comment

Originally Posted: May 4, 2012. I added some comments from the original post at the end of this post:

I wrote an earlier post about days some people would have liked to take back. There was one day that I would like to take back. It was the day Ken Conrad was teaching me how to setup and operate the two large water cannons that we used to irrigate the plant grounds. During my second summer as a summer help (1980), when I had about 6 weeks left of the summer, I was asked to take over the watering of the plant grounds because Ken Conrad was needed to do other jobs and this was taking too much of his time.

Water Cannon similar to ours only ours had another spool on it that held the fire hose

Like this only without the grass

A Dust Devil

The Security guard was on his way back from checking the dam when he stopped along the road, got out of his jeep and sat on the hood and watched them for 5 or 10 minutes. For those of you who might not know, a dirt devil looks like a miniature tornado in training as it kicks up the dirt from the ground. These dirt devils were actually “coal devils” and they were black. They were lined up one after the other blowing across the the huge black pile of coal. You can see the size of the coal pile from this Google Image:

This is an overhead view of the plant

Then as the security guard on the hill and I were watching the coal pile, this long black finger came flying up from the coal pile reaching higher and higher into the sky twirling itself into one huge coal devil! It traveled toward me from the coalyard and across the intake coming straight toward where I was. It ended up going directly between the two smoke stacks which are each 500 feet tall. This coal devil was easily twice the size of the smoke stacks. Tall and Black. After it went between the smoke stacks it just faded like dust devils do and it was gone.

Picture a dust devil this size but pure black

Comments from the original post:
susanhull May 5, 2012
Ken reminds me of my dad, who, though not a power plant man per se (he was an electrical engineer, that’s pretty close,right?), would give us way more details than we thought we needed. And now I see myself doing it to my grandson (age 11), who is likely to roll his eyes and say, “I already know that!”, when I know darn well he doesn’t. Then I try to resist doing the “I told you so” dance when he finds out he doesn’t already know that. Unfortunately, he does not resist doing the dance when we find out that he did, in fact, already know it!
zensouth May 5, 2012

I like your blog because the stories are always substantial. It takes a while to take in all the flavor of it, like sampling a fine meal or a rich pastry. I do dislike the visual theme, but I think it forces me to concentrate on the content of the story.
1. Plant Electrician May 5, 2012
  
  Thanks Zen, I understand your feelings. A coal-fired power plant is hardly a normal setting. It was built way out in the country because no one really wants one in their backyard. It was the place I called home for many years. I know that when I left I took with me silicon-based ash, a couple of pounds of coal dust and asbestos particles in my lungs. I will not be surprised the day the doctor tells me that I have mesothelioma. I realized after I left, that it wasn’t the place, it was the people that were so dear to me that I called “home”.
jackcurtis May 13, 2012

I’ve served time with similar folk, people who had more time for a kid learning a job than the kid had for them. Two things stuck besides an entirely different evaluation of those people over time…first one was the old (now): “It ain’t what you don’t know that gets you; it’s what you know that ain’t so.” And the other was, remembering the old guys who had patience with you along the way, it’s always like remembering your parents and you pay it forward…(and I still think you have a book in you)

Resistance in a Coal-Fired Power Plant

By Plant Electrician on December 4, 2017 | 1 Comment

Originally posted April 19, 2013:

Resistance is Futile! You may have heard that before. Especially if you are a Star Trek Fan. If not, then you know that there is always some form of resistance wherever you are.

Captain Picard as Locutus trying to convince you that “Resistance is Futile” Like that is ever going to happen

I learned a lot about resistance when I first joined the electric shop at the coal-fired power plant in North Central Oklahoma in 1984. I was assigned to work with Sonny Kendrick and Bill Rivers on the Precipitator during overhauls and when I wasn’t working on the manhole pumps and there wasn’t any other emergencies going on. Actually, from 1984 on, on the Precipitator for the next 17 years I continued to work on the precipitator… (if I had only known my fate….).

The plant has a similar electrostatic precipitator, only ours is twice as long

This for instance is a 339 ohm resistor with a 5% tolerance.

This is how the color codes work for resistors works

I found that having just the correct amount of resistance was very important. Too much or too less, and everything stops working.

I love this picture! It makes me feel at home! This was not our plant, but is a Power Plant control room

He said you would be able to call someone on a phone you kept in your pocket or your watch like Dick Tracey.

Dick Tracy in a control room of a power plant sending commands to the hopper nozzle booster pumps

But for now…. back to my electronic days… before I began re-programming the Eeprom chips in the precipitator controls….

An Eeprom Chip used in the precipitator controls which I had a very “personal” relationship with…

When Bill told me this story, he literally had tears in his eyes. This was because being part of the Instrument and Controls team was part of his dream. His family and the entire rest of his life was decided the day he was told that he was not going to be a part of a team that he believed was his true lot in life.

From Horton Hatches an Egg by Dr. Seuss

Comment from the Original Post:

Ron Kilman April 21, 2013

It’s amazing how many decisions are made based on incorrect / incomplete information (at all levels).

Power Plant Men

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