Which efficiency limitation affects Carnot engines operating with irreversible heat transfer processes?

A)Increased entropy generation overall✓

B)Decreased cycle completion frequency

C)Elevated isothermal expansion pressures

D)Reduced isentropic compression ratios

💡 Explanation

When irreversible heat transfer occurs, entropy generation increases because the finite temperature difference between the thermal reservoirs and the working fluid causes loss of available energy. Therefore increased entropy generation limits Carnot engine efficiency, rather than cycle frequency, pressure levels or compression ratios which would change design parameters.

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Which efficiency limitation affects Carnot engines operating with irreversible heat transfer processes?

💡 Explanation

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