Answer
$\dot{Q}_L=900MW$
Work Step by Step
Since $\eta = \dot{W}_e/\dot{Q}_H$
Given $\eta = 0.40,\ \dot{W}_e=600\ MW$:
$\dot{Q}_H=1500\ MW$
And $\dot{Q}_H=\dot{W}_e+\dot{Q}_L$
So: $\dot{Q}_L=900MW$
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 313: 6-19
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