A special-purpose 30-horsepower electric motor has an efficiency of 90%. Its purchase and installation price is $2,200.
Question:
a. Which motor should be chosen?
b. For an incremental investment of $1,000 in the more efficient motor, what is the PW of the energy savings over the eight-year period?
MARR
Minimum Acceptable Rate of Return (MARR), or hurdle rate is the minimum rate of return on a project a manager or company is willing to accept before starting a project, given its risk and the opportunity cost of forgoing other...
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Related Book For
Engineering Economy
ISBN: 978-0132554909
15th edition
Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
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