A replacement electric motor is being considered for purchase. It is capable of providing 200 hp. The pertinent data are as follows: Cost $ 3200 Electrical efficiency 0.85 Maintenance cost per $ 50 year Life expectancy 14 years Salvage value after 14 $0 years The motor is used for 400 h/yr and the cost of electricity is $ 0.04/kWh (1 hp-D0.746 kW). What is most nearly the effective annual cost using an interest rate of 10%?

A replacement electric motor is being considered for purchase. It is capable of providing 200 hp. The pertinent data are as follows: Cost $ 3200 Electrical efficiency 0.85 Maintenance cost per $ 50 year Life expectancy 14 years Salvage value after 14 $0 years The motor is used for 400 h/yr and the cost of electricity is $ 0.04/kWh (1 hp-D0.746 kW). What is most nearly the effective annual cost using an interest rate of 10%?

Electricity for Refrigeration, Heating, and Air Conditioning (MindTap Course List)

10th Edition

ISBN:9781337399128

Author:Russell E. Smith

Publisher:Russell E. Smith

Chapter7: Alternating Current, Power Distribution, And Voltage Systems

Section: Chapter Questions

Problem 3RQ

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