Answer
E
Work Step by Step
Energy balance, per time unit:
$\dot{Q}-\dot{W}_e=0$
$-\dot{W}_e=250W+120W+1800W+50W=2220W=7992\ kJ/h$
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 4 - Energy Analysis of Closed Systems - Problems - Page 210: 4-149
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