Anyone need a diesel engine?

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Buddhaman

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Engineering always amazes me. It's one thing to do something small but it's a whole 'nother can of worms when you get on the gigantic scale!
 
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NordbergTSG219L19TH.jpgThose big diesels have been around for a long time.
Most are used in electric generation and ships engines.
I worked at the Ponca City Diesel Power plant while in college. One of the engines was the largest diesel engine of its class in the world. I worked in the maintenance department, and when we overhauled one of these engines, I stood on the connecting rod and chisled carbon from the exhaust port. The pistons were 6' tall, and 36" in diameter.
They powered 18 pole generators at an RPM that I don't remember now, but I think it was less than 200 rpm.
There were several epic engine explosions over the years. They were started with compressed air at 1000 psi. When getting to the speed to sync the generators an operator had to stand on top of them to run the controls. the engines were "diesel", but actually ran on natural gas, with diesel injected to provide top cylinder lubrication. The crank cases have "explosion doors" designed to release the pressure should an explosion occur.
One explosion blew a head off from a detonation, and the injector rod that was stainless steel, flew through the roof, and landed almost 1/2 mile away in center field of a little league baseball game in progress. Another lifted the roof off the plant, and offset it a foot.
The one I remember was when working there. I worked second shift after class, and when I walked in the door, the explosion occured from a broken piston ring getting NG into the crankcase. The fire boiled up over the top where the operator was standing. He got down the ladder fully engulfed in flame, and ran. I remember seeing my dad chasing him with a canvas tarp, and finally caught him and got the fire out. He lived, but spent a year in a burn center. Not so pretty when he came back to work.

My dad worked there for 40+ years.

Here is a little history on the power plant, and its still there, and is used as a peaking unit in the summer when hi loads are present:

Diesel Power
The City sold its remaining steam equipment and built a modern all-diesel engine power plant on North Union in 1927. This was paid for with the voters’ approval to issue $300,000 in bonds. The building is 130' 8" long, 85' wide, 59' high, and contains a full 12' basement. This fireproof building was made of concrete, pressed brick, and steel. Foundations for the engines were isolated from the building to eliminate the transmission of vibration when the engines operated. To muffle the noise caused by air intakes, large air suction chambers were constructed within the engine foundations, and the air filters were located outside of the building. Also located outside of the building were the fuel storage tanks that supplied the engines with diesel fuel. Gas-fired boilers were used for heating the fuel oil, and gas-fired radiators were used to heat the building. The switchboard was centrally located on the south side of the engine room, near the generators.

This plant contained the largest group of Nordberg diesel engines in the world. Nordberg ended diesel engine production in the mid-1960s. The building housed ten generating engines, of which the second and third engines from the Cleveland Avenue Plant, as well as the fifth engine, no longer operate.

In September of 1995, the 11th engine was donated to "Friend Ships" by the Ponca City Board of Commissioners and is being used to help power one of their ships. "Friend Ships" is a nonprofit corporation that operates a fleet of vessels staffed entirely with full-time, 100% unpaid volunteers. Surplus commodities, volunteers, and ships are used as tools to make the program able to collect, transport, and disperse humanitarian aid on a massive scale and to provide life support services to nations in a cost-effective manner.
 

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orangeRcode

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Interesting read.

Dennis, I worked for the OMPA in Ponca for a few years. I realize its called progress but I hated the fact they scraped the old diesels at the plant. I was told at one time the Smithsonian wanted one of the diesels for their displays but wanted PC to fund the removal and shipping so it never happened.
 

bettingpython

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Don't they typically run at some multiple of 60 rpm for power generation? 60/120/180? Or do they use a gear drive system to keep the frequency of the generator output constant?
 

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