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James James is offline
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First recorded activity by BoatBanter: Jul 2006
Posts: 163
Default Two engines, one heat exchanger... ?

Thje conclusion I drew was that he was installing a smaller 2nd genset. I
could see that as generators have a minimum fuel consumption based on their
maximum output. If you use a large one to just get a few hundred watts you
are wasting fuel because even at little or no load the generator engine
still has to turn a set rpm to maintain the 60hz output. It will do it at
a lower throttle opening but you are still turning a bigger engine and a
bigger alternator. There is a fixed overhead load in the size. It is more
efficient to run a smaller one if all you need a little power.

"Rick" wrote in message
...

"James Sweet" wrote in message
news:i7Eoh.3238$2D.1367@trndny07...

exchanger was sized for a bigger engine (bigger than my
'big' generator) but I intend to run only one genset at
a time anyway.

Thx, Al


Your present heat exchanger, while it might be big enought to handle a
larger engine, it's probably not big enought to effectivly cool two
engines.



What difference does it make if he's only running one at a time? Did you
even read the post you replied to?


Why install a second genset and only plan on running one? Is it for
relibility?

If so does sharing a cooling system really make sense? How much do you
save over the entire cost of installing a genset????