Two motors operate 5,000 h/hr at full load. One is 40 hp with an efficiency of 0.75

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Two motors operate 5,000 h/hr at full load. One is 40 hp with an efficiency of 0.75 and a power factor of 0.65, and the other is 100 hp with an efficiency of 0.935 and a power factor of 0.85. Determine:

a. The overall power factor.

b. The simple payback period of replacing each motor by an energy-efficient motor. Assume that the cost of electricity is $0.07/kWh.

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Energy Audit Of Building Systems An Engineering Approach

ISBN: 9780367820466

3rd Edition

Authors: Moncef Krarti

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Question Posted: Feb 07, 2024 01:49 PM

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Two motors operate 5,000 h/hr at full load. One is 40 hp with an efficiency of 0.75

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Overall Power Factor and Simple Payback Period of Motor Replacements Heres the analysis for the two ...View the full answer

Energy Audit Of Building Systems An Engineering Approach

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