I am well aware of many technologies that require heat transfer (Heat Engines, Peltiers, Thermocouples, etc.), but all of them require heat transfer.I was wondering if it were possible to extract the heat energy from a body.
Your body makes heat so yes you can do heat transfer from the body. Look up how all heat transfer systems work and simply use the person as the source of heat.
A good ques. Others didn't understood what you meant . Yeah but definitely not efficient as other are. eg petrol or coal . these are chemicals and when heated to a point these start releasing gases due to which the system heats up even more and this expansion in volume is utilized. Please.........Mark as best if helped :)
The way it works, you have to have heat transfer, or at least a temperature differential. The body can be the the hot or cold end of the differential, but if the heat transfer is at all substantial,it could be uncomfortable or harmful. Grandpa
yeah dude..what grade are u in
Yes it is, but thermodynamics says to do so, you must have a heat source hotter than the surrounding environment. Here are a couple examples: 1) You burn coal (creating heat). You use this heat to boil water to create steam. You run the steam through a turbine to get it spinning. You use the steam powered turbine to spin a generator to produce electricity! You can get more work (i.e. energy) out of the stem by putting it under pressure and heating it to higher temperature. Also, the colder the outside environment where you are dumping the left over steam, the more work you can get out of it. Some arrangements have the outgoing cooled steam (that's already gone through the turbine and done its work) running through a heat exchanger to pre-warm the incoming water so less heating has to be done by the burning coal. 2) You drill into the earth deep enough to reach much hotter material beneath. You bring this heat to the surface and use it to boil water like above... 3) Solar panels work most efficiently when sunlight hits them, but even in absence of visible light, heat will still impart some power to a solar cell.
