Grant Fulcher wrote:Thanks for all the reply's. I will start educating myself on alternative fuels as mentioned above to run a generator on. Alcohol can be a gas by david blume is convincing book that its a great back up, cheap and easy to produce like Brazil is implementing. I just want to be able to heat my greenhouse if the power and gas are off. Probably going with a natural gas/ propane one to start with.
Douglas Alpenstock wrote:It's an interesting thought experiment.
I'm not clear on how you plan to distill the enthanol to a burnable concentration. That requires a heat source.
Somewhere in the system you will probably need a heat source for cooking as well.
Regarding "Use the heat to boil the water to steam and drive an alternator to get electricity," you may need a simpler approach. High pressure steam equipment is complex and hazardous. A stirling engine or solid state peltier junction generator might be more practical.