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brewnog
#2
Nov29-08, 05:08 AM
Sci Advisor
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P: 2,793
Greatglory, this is not a new idea, and many thousands of megawatts of electricity are currently being produced from human and agricultural waste. Perhaps you should look into the (very large) market of biogas power generation, where methane from anaerobic digesters (from sewage and farm waste) is burnt in a gas engine, with the resulting waste heat being used to warm the digesters. The only difference between this and your idea is that a reciprocating engine is used for high efficiencies, control, and heat recovery.

I would also advise you avoid using the term "perpetual motion machine", this is the talk of crackpots and lunatics and will attract undeserved attention from moderators.