Answer
$\Delta E_{system}=1650kW$
Work Step by Step
Applying the energy balance:
$E_{in}-E_{out}=\Delta E_{system}$
Since there is no energy leaving the room:
$\Delta E_{system}=E_{in}=40kW+110kW+300kW+1200kW=1650kW$
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 2 - Energy, Energy Transfer, and General Energy Analysis - Problems - Page 100: 2-47
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