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annetjelie
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My book states:
"To prove that no real heat engine operating between two reservoirs is more efficient than a carnot engine between the same reservoirs, imagine a more efficient engine to drive a less efficient carnot refrigerator. For the combination of the engine and refrigerator you get a net transfer of energy from the cold to the hot reservoir without work being done on the combination, which is a violation of the Clausius statement."
But what if i combine two *real* engines in the same way? This violates the Clausius statement too.
Does that mean that *any*(real or reversible) two or more engines between the same reservoirs have the same efficiency? I thought that was only true for Carnot engines.
help would be much appreciated, thanks in advance!
"To prove that no real heat engine operating between two reservoirs is more efficient than a carnot engine between the same reservoirs, imagine a more efficient engine to drive a less efficient carnot refrigerator. For the combination of the engine and refrigerator you get a net transfer of energy from the cold to the hot reservoir without work being done on the combination, which is a violation of the Clausius statement."
But what if i combine two *real* engines in the same way? This violates the Clausius statement too.
Does that mean that *any*(real or reversible) two or more engines between the same reservoirs have the same efficiency? I thought that was only true for Carnot engines.
help would be much appreciated, thanks in advance!