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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Related Book For
Energy Audit Of Building Systems An Engineering Approach
ISBN: 9780367820466
3rd Edition
Authors: Moncef Krarti
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