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On 03/18/2013 02:46 PM, Bruce Sherwood wrote:or nuclear, don't use internal-combustion engines, and Curzon and Ahlborn
They compared their result with the
efficiencies of actual power plants and found agreement with their simple
formula, which is consistent with fuel having been historically cheap and
engines expensive.
I don't believe that for a minute. Nobody I know operates car engines
or airplane engines anywhere near max rated power for more than a tiny
percentage of the time.
Besides, how do you even /define/ T_H for an internal-combustion engine?
Uh, I have the distinct impression that power plants, whether coal-fired