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From which cycle does maximum possible efficiency of a heat engine operating between two temperature limits cannot exceed?(a) Carnot cycle(b) Otto cycle(c) Open cycle(d) Anderson cycleThis question was addressed to me in an online quiz.This intriguing question originated from Ocean Thermal Energy Conversion topic in chapter Ocean Energy & Geothermal Energy of Energy Engineering

Answer»

Correct choice is (a) Carnot cycle

The best EXPLANATION: The MAXIMUM possible efficiency of a heat engine operating between two temperature limits cannot EXCEED that of a Carnot cycle operating between the same temperature limits. The Carnot efficiency is given by

ηc = (T1-T2)/T1.



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