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Fundamentals of Engineering Thermodynamics | 7th Edition | ISBN: 9780470495902 | Authors: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey
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Analyzing Internally Reversible ProcessesOne-tenth

Chapter 6, Problem 29P

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QUESTION:

One-tenth kilogram of a gas in a piston–cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K, is \(-25 \mathrm{\ kJ} / \mathrm{kg} \cdot \mathrm{K}\). Determine (a) the network developed per cycle, in kJ, and (b) the thermal efficiency.

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QUESTION:

One-tenth kilogram of a gas in a piston–cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K, is \(-25 \mathrm{\ kJ} / \mathrm{kg} \cdot \mathrm{K}\). Determine (a) the network developed per cycle, in kJ, and (b) the thermal efficiency.

ANSWER:

Solution 29P

Step 1 of 4

Here the objective is to determine the net work developed per cycle and the thermal efficiency for the given power cycle in a piston-cylinder assembly for the given parameters.

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