In a perfect, ideal world with constant specific heats the thermal efficiency of an otto cycle is dependent on its pressure ratio and a diesel cycle is dependent on its pressure ratio and cut off ratio. But since in the real world the equations with these terms do not hold since specific heats vary. Does that mean in the real world that these cycles do not depend on these ratios but on the more general form of net work / heat in(adsbygoogle = window.adsbygoogle || []).push({});

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# Thermal efficiency of reciprocating engines

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