Question: Two electric motors are being economically evaluated for the use in unmanned vehicle. Each is capable of delivering 90 horsepower to a necessary application that the vehicle performs. Data for the mutually exclusive motors as follows: Motor X Motor Y $2,500 $3,200 Initial investment Electricity efficiency Annual maintenance Useful life (years) 0.76 0.91 $450 $600 12 12 If the expected usage of the motor is 700 hours per year, what would the cost of electric power have to be (in $ per kWh) before the Motor Y is favored over the Motor X? Use i =10% per year. (1 horsepower = 0.746 kilowatts)
Question: Two electric motors are being economically evaluated for the use in unmanned vehicle. Each is capable of delivering 90 horsepower to a necessary application that the vehicle performs. Data for the mutually exclusive motors as follows: Motor X Motor Y $2,500 $3,200 Initial investment Electricity efficiency Annual maintenance Useful life (years) 0.76 0.91 $450 $600 12 12 If the expected usage of the motor is 700 hours per year, what would the cost of electric power have to be (in $ per kWh) before the Motor Y is favored over the Motor X? Use i =10% per year. (1 horsepower = 0.746 kilowatts)
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
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Question
![Question:
Two electric motors are being economically evaluated for the use in
unmanned vehicle. Each is capable of delivering 90 horsepower to a
necessary application that the vehicle performs. Data for the mutually
exclusive motors as follows:
Motor X
Motor Y
$2,500
0.76
$3,200
Initial investment
Electricity efficiency
Annual maintenance
Useful life (years)
0.91
$450
$600
12
12
If the expected usage of the motor is 700 hours per year, what would the cost
of electric power have to be (in $ per kWh) before the Motor Y is favored over
the Motor X? Use i =10% per year. (1 horsepower = 0.746 kilowatts)
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F7b9b179e-ee0e-4fdb-bf6f-04059bfa0e20%2F16f25dbe-2054-4e7c-ba24-7b764bf07392%2Fmg34pj_processed.jpeg&w=3840&q=75)
Transcribed Image Text:Question:
Two electric motors are being economically evaluated for the use in
unmanned vehicle. Each is capable of delivering 90 horsepower to a
necessary application that the vehicle performs. Data for the mutually
exclusive motors as follows:
Motor X
Motor Y
$2,500
0.76
$3,200
Initial investment
Electricity efficiency
Annual maintenance
Useful life (years)
0.91
$450
$600
12
12
If the expected usage of the motor is 700 hours per year, what would the cost
of electric power have to be (in $ per kWh) before the Motor Y is favored over
the Motor X? Use i =10% per year. (1 horsepower = 0.746 kilowatts)
%3D
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