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A power cycle I and a reversible power cycle R operate
Chapter 5, Problem 5.6(choose chapter or problem)
QUESTION:
A power cycle I and a reversible power cycle R operate between the same two reservoirs, as shown in Fig. 5.6. Cycle I has a thermal efficiency equal to two-thirds of that for cycle R. Using the Kelvin–Planck statement of the second law, prove that cycle I must be irreversible.
Questions & Answers
QUESTION:
A power cycle I and a reversible power cycle R operate between the same two reservoirs, as shown in Fig. 5.6. Cycle I has a thermal efficiency equal to two-thirds of that for cycle R. Using the Kelvin–Planck statement of the second law, prove that cycle I must be irreversible.
ANSWER:Step 1 of 4
Two power cycles operate between the same two reservoirs. Power cycle is reversible, and cycle has thermal efficiency.