Engineering Economy (17th Edition)
17th Edition
ISBN: 9780134870069
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Question
Chapter 11, Problem 40FE
To determine
Calculate the cost of electricity.
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Students have asked these similar questions
Two electric motors (A and B) are being considered to drive a centrifugal pump. Each motor is capable of delivering
60
horsepower (output) to the pumping operation. It is expected that the motors will be in use
1,200
hours per year. If electricity costs
$0.09
per kilowatt-hour and 1 hp =
0.746
kW, which motor should be selected if MARR =
7%
per year? Refer to the data below.
Two electric motors (A and B) are being considered to drive a centrifugal pump. Each motor is capable of delivering 40 horsepower (output) to the pumping operation. It is expected that the motors will be in use
800 hours per year. If electricity costs $0.08 per kilowatt-hour and 1 hp = 0.746 kW, which motor should be selected if MARR = 6% per year? Refer to the data below.
The AW for Motor A is $
Initial Cost
Electrical Efficiency
Annual
Maintenance
5 years
Click the icon to view the interest and annuity table for discrete compounding when the MARR is 6% per year.
(Round to the nearest dollar.)
Motor A
$1,700
0.75
$50
Life
Motor B
$900
0.55
$80
5 years
A tunnel to transport water initially cost $1,000,000 and has expected maintenance costs that will
occur in a 6-year cycle as shown below, assume MARR is 20% per year.
note (writ all numbers without rounding and without any units)
End of Year:
Maintenance:
$35,000 $35,000 $35,000 $45,000 $45,000 $60,000
Compute the Equivalent Annual Cost of the maintenance.
Hint: Don't insert the negative sign
Compute the Capitalized Cost?
Hint: Don't insert the negative sign
Chapter 11 Solutions
Engineering Economy (17th Edition)
Ch. 11 - Prob. 1PCh. 11 - Refer to Example 11-2. Assuming gasoline costs...Ch. 11 - Prob. 3PCh. 11 - Prob. 4PCh. 11 - Prob. 5PCh. 11 - Prob. 6PCh. 11 - Prob. 7PCh. 11 - Prob. 8PCh. 11 - Prob. 9PCh. 11 - Prob. 10P
Ch. 11 - Prob. 11PCh. 11 - Prob. 12PCh. 11 - Prob. 13PCh. 11 - Prob. 14PCh. 11 - Prob. 15PCh. 11 - Prob. 16PCh. 11 - Prob. 17PCh. 11 - Prob. 18PCh. 11 - Prob. 19PCh. 11 - A bridge is to be constructed now as part of a new...Ch. 11 - An aerodynamic three-wheeled automobile (the Dart)...Ch. 11 - Prob. 23PCh. 11 - Prob. 24SECh. 11 - Prob. 25SECh. 11 - Prob. 26SECh. 11 - Prob. 27SECh. 11 - Prob. 28SECh. 11 - Prob. 29SECh. 11 - Prob. 30FECh. 11 - Prob. 31FECh. 11 - A supermarket chain buys loaves of bread from its...Ch. 11 - A supermarket chain buys loaves of bread from its...Ch. 11 - Prob. 34FECh. 11 - Prob. 35FECh. 11 - Prob. 36FECh. 11 - Prob. 37FECh. 11 - Prob. 38FECh. 11 - Prob. 39FECh. 11 - Prob. 40FECh. 11 - Prob. 41FECh. 11 - Prob. 42FE
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