Hi Folks,   

         When considering a generators powered by internal combustion
engines (probably diesel) are there any large efficiency differences in
terms of fuel consumed per KWh output if the output voltage is mains
voltage (240VAC in my case) or down in the 12VDC range?  The power
output required is in the region of 2KW and the power is going to be
used close to the generator so no great transmission losses to consider.

At first glance I suppose it ought to make little difference (assuming
the load doesn't mind what voltage it runs off ... that's another set of
problems not in scope here, for now assume simple resistive heating) but
I know nothing of the subtleties of generator design, does anyone here
know or have a good reference I can check?

 

Cheers,

       Robin.

 

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