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Author Topic: .68 5th  (Read 11473 times)

Reply #60March 18, 2011, 12:53:55 pm

macka

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Re: .68 5th
« Reply #60 on: March 18, 2011, 12:53:55 pm »
Scuzzbury er Sudbury doesn't look like a lunar landscape anymore. The huge problem is that nothing grows in slag and they have the options of stripping a layer off the forest when they strip cut. They stopped clear cutting up here because of erosion factors. They basically are moving soil right now from the highway projects. Topsoil isn't put under roads. I like the fact we can make oil from organic sources and recover used oils as fuel for our cars, plus thumb our noses at those "hybrids".
Quote from: Vincent Walden
I do know that I drive torque,  while listening to my friends prattle on about horsepower.

Reply #61March 18, 2011, 07:28:02 pm

dodger21

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Re: .68 5th
« Reply #61 on: March 18, 2011, 07:28:02 pm »
From what I read, a generators efficiency range is around 2400-3000 RPMs, well out of the diesel range. The way I heard described is there is a gear box to turn the generators in the locomotives which is why they have HUGE torque numbers so they can turn enough generator RPMs for the right hertz....

Just what I remember either reading/hearing/internet gossip....
1985 Golf 1.6NA with a 5spd

Reply #62March 19, 2011, 12:06:19 pm

blackbird82

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Re: .68 5th
« Reply #62 on: March 19, 2011, 12:06:19 pm »
Well on trains they use 2 stroke diesels, or at least they did up to 2006.  And 2 strokes run in that range of efficiency

and it don't matter if you use a gearbox, gears multiply torque, they don't multiply horsepower.
The power into those generators even geared is the single most efficienct use of a diesel engine.
Get the right gearing, spin the generator at its required speed, use an isochronos governor. ( look that up!)

and bamm super efficiency
I love the whistle......

Reply #63March 19, 2011, 12:14:24 pm

dodger21

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Re: .68 5th
« Reply #63 on: March 19, 2011, 12:14:24 pm »
use an isochronos governor. ( look that up!)

I did!  ;D I know it as a load governor. Adjusts fuel/RPM to load.
1985 Golf 1.6NA with a 5spd

 

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