-> -> > I have often considered using a V-8 automotive engine with much
-> -> > altered cam and ignition timing running at 540 RPM (PTO speed) t
-> -> > a generator.  By careful selection of components, it would proba
-> -> > be made to be quite efficient at that speed. Maybe even run it o
-> -> > piped-in natural gas for co-generation.
->
-> -> Craig, I doubt that this lashup would be "quite efficient" compare
-> -> to an engine more closely sized to the load. There's lots of
-> -> friction loss in such engines, and it would be quite significant
-> -> at low RPM and load.
->
-> Prhaps one could look at a small tractor or marine diesel engine?  Th
-> engines are designed to run for extended periods at low speeds.
Im looking at the Chevy 350 for a couple of reasons.  First, they are
*very* common, and parts are generally very inexpensive. Second,  I'd
rather lower the RPM and make up the power with torque.  The lower the
RPM, the less noise and vibration.
-> If you can't get small enough, you might see if any of your
-> neighbors might want to contribute in exchange for a feed from a
-> larger generator.
Probably wouldn't have much excess capacity.  Certainly not enough
to sell.  I don't want to be a major power exporter, but just about
break even on input vs. output.  Around here they buy power at about
half the selling rate.  I believe they even require a special
"ratcheting" meter so they can separate input from output and bill
accordingly.
Then again, this whole project may turn out to be economically
wrong.  But, it will be an interesting exercise!
-c-
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