you need heat, fuel that reacts to heat, and mechincal piston entine to do this and i am on the way to building this engine. so i can not say to much on how this engine works...all the caluclations have be done and the math say it it will work...i was just asking the question to see what came up???  striling engine can use the sun and diesel, gasoline, hydrogen, and some engines have produced up 200k watts of power.  my engine will produce up to 10M Watts... the current engine i am building will produce 400 Hp and up to 1400 Tqu.  thank you for answering and asking   marc