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As much steam as possible from engine exhaust gas + warm water?
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[QUOTE="russ_watters, post: 6851136, member: 142"] Well, the energy numbers don't add-up using that method, unless there's an error in my calc*. If that's the right volume of air, then the temperature is too high. Maybe a better way would be to use chemistry to find the actual fuel-air ratio and pick a fuel flow rate for a chosen output. Diesel has an energy density of 45 MJ/L and a good rule of thumb is that 1/3 of the energy goes out the tailpipe. I don't have time to do a more rigorous run through of this today...I'll try again tomorrow. The rigorous way starts with figuring out the fuel-air ratio, finds the enthalpy at the start (room temperature air and fuel) and then the end enthalpy of the cooled exhaust and then subtracts that from the heat of combustion. You don't actually need the intermediate state of post-combustion. *Yes, one issue is the output is pressurized, not atmospheric pressure, but that just pushes the result up not down when correcting for that. [/QUOTE]
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As much steam as possible from engine exhaust gas + warm water?
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