Thermodynamics: An Engineering Approach 8th Edition

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 107: 2-131

Answer

b) $5.18 dollars$

Work Step by Step

The electric consume is: $Consume_{e}=320W*(\frac{1}{4}*\frac{24h}{day}*\frac{30day}{month})=57.6\frac{kWh}{month}$ Then the electricity cost is: $Cost_{e}=57.6\frac{kWh}{month}*0.09\frac{dollars}{kWh}=5.18dollars$
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