Quote:
Originally Posted by pilotbob
BUt, your right. Isn't that one of the "laws" of physics.
|
It's the 2nd law of thermodynamics, which basically says that something like the conversion of the potential energy of compressed air into mechanical energy can never be 100% efficient - there will always be a certain proportion of the energy which is lost in the form of heat.
Quote:
|
PS: I don't see how it will be "zero" polution either. I guess unless the fuel they talk about using to warm the air is clean burining like natural gas or propane or something... but doesn't combusion give of CO2 by definition?
|
No, it depends what it is that you're burning. If you burn a hydrocarbon (like natural gas or propane) you'll get CO2, but burn, say, hydrogen, and what you get is water vapour:
2H2 + O2 -> 2H2O