Explanation Write the expression for maximum thermal efficiency. η max = 1 − T C T H (I) Here the temperature of the cold reservoir is T C and temperature of the hot reservoir is T R . Write the expression to convert the temperature in Kelvin scale temperature. T = T ° C + 273 . (II) Here, temperature in degree Celsius is T ° C . Conclusion: Substitute 1100 ° C for T ° C in Equation (II) to convert earth temperature in Kelvin scale temperature. T H = 1100 ° C + 273 = 1373 K Substitute 15 ° C for T ° C in Equation (II) to convert atmosphere temperature in Kelvin scale temperature

Fundamentals of Engineering Thermodynamics

8th Edition

ISBN: 9781118412930

Author: Michael J. Moran, Howard N. Shapiro, Daisie D. Boettner, Margaret B. Bailey

Publisher: WILEY

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Chapter 5.11, Problem 22P

To determine

The maximum thermal efficiency of the cycle.

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Chapter 5.11, Problem 21P

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Chapter 5 Solutions

Fundamentals of Engineering Thermodynamics

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