Answer
$\dot{W}_i=0.879\ kW$
Work Step by Step
$COP_R=\dfrac{1}{1-\frac{T_L}{T_H}}$
Given $T_H=540°R,\ T_L=450°R$
$COP_R=5$
$COP_R=\dot{Q}_L/\dot{W}_i$
With $\dot{Q}_L=15000\ Btu/h$
$\dot{W}_i=0.879\ kW$
Thermodynamics: An Engineering Approach 8th Edition
by Cengel, Yunus; Boles, Michael
Published by
McGraw-Hill Education
ISBN 10:
0-07339-817-9
ISBN 13:
978-0-07339-817-4
Chapter 6 - The Second Law of Thermodynamics - Problems - Page 319: 6-98E
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