9th Edition

ISBN: 9781259822674

Author: Yunus A. Cengel Dr., Michael A. Boles

Publisher: McGraw-Hill Education

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Textbook Question

Chapter 10.9, Problem 132FEP

Consider a combined gas-steam power plant. Water for the steam cycle is heated in a well-insulated heat exchanger by the exhaust gases that enter at 800 K at a rate of 60 kg/s and leave at 400 K. Water enters the heat exchanger at 200°C and 8 MPa and leaves at 350°C and 8 MPa. If the exhaust gases are treated as air with constant specific heats at room temperature, the mass flow rate of water through the heat exchanger becomes

(a) 11 kg/s
(b) 24 kg/s
(c) 46 kg/s
(d) 53 kg/s
(e) 60 kg/s

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Chapter 10.9, Problem 131FEP

Chapter 11.10, Problem 1P

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Chapter 10 Solutions

Thermodynamics: An Engineering Approach

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Solution Summary: The author explains the mass flow rate of water, specific heat at constant pressure, and temperature of the exhaust gas at entry and exit.

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