alt.energy.renewable

-> From what you have written, do a quick best case calculation. A simple
-> PV=nRT will work. 100:1 ratio in 3 stages. Take stage one.

-> Inlet air: 1,470 psi, 50 F; Outlet air: 980 psi
-> Calculate Outlet temperature.

-> Then, give us your proposed air mass flow rate and calculate heat flow
-> rate from beginning of stage one to beginning of stage two.

I don't use psilly fart units.

But if you want to, you do it.

If you want to calculate heat flows, PV=nRT will not work. You must use
the adiabatic equation, P.V^amount of heat you need to get back to the original PV.

But it's easy to put an upper limit on it. We're talking about a little
vehicle with a motor that produces only a kilowatt or so of mechanical
power. So the heat flows will be only of that order, probably somewhat
less.

dow