Basics Of Engineering Economy
2nd Edition
ISBN: 9780073376356
Author: Leland Blank, Anthony Tarquin
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 4, Problem 7P
To determine
Selection of alternate.
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An irrigation return flow drain has sampling equipment that can be powered by solar cells or by running an electric line to the site and using conventional power. Solar cells will cost $14,000 to install with a useful life of 10 years. Annual costs for inspection, cleaning, etc. are expected to be $1500. A new power line will cost $12,000 to install and the power costs are estimated at $600 per year. The salvage value of the solar cells is expected to be 25% of the first cost when the sampling project ends in 4 years. The electric line will stay in place, so its salvage value is considered to be zero. At an interest rate of 10% per year, which alternative should be selected?
A remotely located air sampling station can be powered by solar cells or by running an electric line to the site and using conventional power. Solar cells will cost $12,600 to install and will have a useful life of 4 years with no salvage value. Annual costs for inspection, cleaning, etc. are expected to be $1400. A new power line will cost $11,000 to install, with power costs expected to be $800 per year. Since the air sampling project will end in 4 years, the salvage value of the line is considered to be zero. At an interest rate of 10% per year, which alternative should be selected on the basis of a future worth analysis?
A remotely located air sampling station can be powered by solar cells or by running an electric line to the site and using conventional
power. Solar cells will cost $19,000 to install and will have a useful life of 4 years with no salvage value. Annual costs for inspection,
cleaning, etc. are expected to be $1,100. A new power line will cost $9,000 to install, with power costs expected to be $800 per year.
Since the air sampling project will end in 4 years, the salvage value of the line is considered to be zero. At an interest rate of 14% per
year, which alternative should be selected on the basis of a future worth analysis?
The future worth of solar cells is $
and that of electric line is $
Electric line
should be selected on the basis of a future worth analysis.
Chapter 4 Solutions
Basics Of Engineering Economy
Ch. 4 - State two conditions under which the do-nothing...Ch. 4 - Prob. 2PCh. 4 - Prob. 3PCh. 4 - Prob. 4PCh. 4 - Prob. 5PCh. 4 - Prob. 6PCh. 4 - Prob. 7PCh. 4 - Prob. 8PCh. 4 - Prob. 9PCh. 4 - The costs associated with manufacturing a...
Ch. 4 - Prob. 11PCh. 4 - Prob. 12PCh. 4 - Prob. 13PCh. 4 - Prob. 14PCh. 4 - Prob. 15PCh. 4 - Prob. 16PCh. 4 - Prob. 17PCh. 4 - Prob. 18PCh. 4 - Prob. 19PCh. 4 - Prob. 20PCh. 4 - Prob. 21PCh. 4 - Prob. 22PCh. 4 - Prob. 23PCh. 4 - Prob. 24PCh. 4 - Prob. 25PCh. 4 - Prob. 26PCh. 4 - Prob. 27PCh. 4 - Prob. 28PCh. 4 - Prob. 29PCh. 4 - Prob. 30PCh. 4 - Prob. 31PCh. 4 - Two mutually exclusive projects have the estimated...Ch. 4 - Prob. 33PCh. 4 - Prob. 34PCh. 4 - Prob. 35PCh. 4 - Prob. 36PCh. 4 - Prob. 37PCh. 4 - The manager of engineering at the 900-megawatt...Ch. 4 - Prob. 39PCh. 4 - Prob. 40PCh. 4 - Prob. 41PCh. 4 - Three different plans were presented to the GAO by...Ch. 4 - The U.S. Army received two proposals for a turnkey...Ch. 4 - Prob. 44PCh. 4 - Prob. 45PCh. 4 - Prob. 46PCh. 4 - Prob. 47PCh. 4 - Prob. 48PCh. 4 - Prob. 49PCh. 4 - Prob. 50PCh. 4 - Prob. 51PCh. 4 - Prob. 52PCh. 4 - Prob. 53PCh. 4 - Prob. 54PCh. 4 - Prob. 55PCh. 4 - Prob. 56PCh. 4 - Prob. 57PCh. 4 - Prob. 58PCh. 4 - Prob. 59PCh. 4 - Prob. 60PCh. 4 - Prob. 61PCh. 4 - Prob. 62PCh. 4 - Prob. 63APQCh. 4 - Prob. 64APQCh. 4 - Prob. 65APQCh. 4 - Prob. 66APQCh. 4 - Prob. 67APQCh. 4 - Prob. 68APQCh. 4 - Prob. 69APQCh. 4 - Prob. 70APQCh. 4 - Prob. 71APQ
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