a) Explanation Given: Temperature at which the heat is transferred ( T ) is 250 ° C . Pressure at which the heat is transferred ( P ) is 20 kPa . Calculation: Draw the T − s diagram of the Carnot cycle as in Figure (1). The temperature at which the heat is transferred will be the higher temperature. T H = T = 250 ° C The temperature at which the heat is rejected will be the lower temperature. Refer Table A-5, “Saturated water-Pressure table”, obtain the saturation temperature of water corresponding to the pressure of 20 kPa . T L = T sat @ 20 kPa = 60.06 ° C Calculate the thermal efficiency of the Carnot cycle ( η th,C ) b) To determine The amount of heat rejected. c) To determine The net-work output of the cycle.

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ISBN: 9780078027680

Author: Yunus A. Cengel Dr., Robert H. Turner, John M. Cimbala

Publisher: McGraw-Hill Education

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Chapter 9, Problem 98P

To determine

The thermal efficiency of the Carnot cycle.

To determine

The amount of heat rejected.

To determine

The net-work output of the cycle.

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Chapter 9, Problem 97P

Chapter 9, Problem 99P

Chapter 9 Solutions

Fundamentals of Thermal-Fluid Sciences

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