Engineering Economy (17th Edition)
17th Edition
ISBN: 9780134870069
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Chapter 7, Problem 60SE
Refer to the chapter opener and Example 7-14. As an alternative to the coal-fired plant, PennCo could construct an 800 MW natural gas–fired plant. This plant would require the same initial investment of $1.12 billion dollars to be depreciated over its 30-year life using the SL method with SV30 = 0. The capacity factor estimate of the plant would still be 80%, but the efficiency of the natural gas-fired plant would be 25%. The annual operating and maintenance expense is expected to be $0.01 per kWh. The cost of natural gas is $8.00 per million Btu and the carbon dioxide tax is $15 per metric ton. Natural gas emits 55 metric tons of carbon dioxide per billion Btu produced. The effective income tax rate is 40%, and the after-tax MARR is 10% per year. Based on the after-tax cost of electricity, create a spreadsheet to determine whether PennCo should construct a natural gas-fired or coal-fired plant. Note: 1 kWh = 3,413 Btu. (7.9)
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Refer to the chapter opener and Example 7-14. As an alternative to the coal-fired plant, PennCo could construct an 800 MW natural gas–fired plant. This plant would require the same initial investment of $1.12 billion dollars to be depreciated over its 30-year life using the SL method with SV30=0SV30=0. The capacity factor estimate of the plant would still be 80%, but the efficiency of the natural gas–fired plant would be 40%. The annual operating and maintenance expense is expected to be $0.01 per kWh. The cost of natural gas is $8.00 per million Btu and the carbon dioxide tax is $15 per metric ton. Natural gas emits 55 metric tons of carbon dioxide per billion Btu produced. The effective income tax rate is 25%, and the after-tax MARR is 10% per year. Based on the after-tax cost of electricity, create a spreadsheet to determine whether PennCo should construct a natural gas–fired or coal-fired plant. Note: 1kWh=3,413 Btu.
Chapter Opener - (1st image), Example - (2nd image)
For the…
Raytheon wishes to use an automated environmental chamber in the manufacture of electronic components. The
chamber is to be used for rigorous reliability testing and burn-in. It is installed for $1.4 million and will have a
salvage value of $200,000 after 8 years. Its use will create an opportunity to increase sales by $650,000 per year and
will have operating expenses of $250,000 per year. Corporate income taxes are 40 percent. Develop tables using a
spreadsheet to determine the ATCF for each year and the after-tax PW, AW,
for 8 years. After-tax MARR is 10 percent. Use 7- years class depreciation for MACRS
and IRR if the chamber is kept
Individual industries will use energy as efficiently as it is economical to do so, and there are several incentives to improve the efficiency of energy
consumption. To illustrate, consider the selection of a new water pump. The pump is to operate 800 hours per year. Pump A costs $2,000, has an
overall efficiency of 80.58%, and it delivers 11 hp. The other available altemative, pump B, costs $1,200, has an overall efficiency of 44.39%, and
delivers 12.8 hp. Both pumps have a useful life of five years and will be sold at that time. (Remember 1 hp = 0.746 kW.)
Pump A will use SL depreciation over five years with an estimated SV of zero. Pump B will use the MACRS depreciation method with a class life
of three years. After five years, pump A has an actual market value of $410, and pump B has an actual market value of $180.
Using the IRR method on the after-tax cash flows and a before-tax MARR of 20%, is the incremental investment in pump A economically
justifiable? The effective income tax…
Chapter 7 Solutions
Engineering Economy (17th Edition)
Ch. 7 - How are depreciation deductions different from...Ch. 7 - Prob. 2PCh. 7 - Explain the difference between real and personal...Ch. 7 - Prob. 4PCh. 7 - Prob. 5PCh. 7 - Prob. 6PCh. 7 - Prob. 7PCh. 7 - Prob. 8PCh. 7 - Prob. 9PCh. 7 - Prob. 10P
Ch. 7 - Prob. 11PCh. 7 - Prob. 12PCh. 7 - Prob. 13PCh. 7 - Prob. 14PCh. 7 - A manufacturer of aerospace products purchased...Ch. 7 - Prob. 16PCh. 7 - Prob. 17PCh. 7 - Prob. 18PCh. 7 - Prob. 19PCh. 7 - Prob. 20PCh. 7 - Prob. 21PCh. 7 - Prob. 22PCh. 7 - Prob. 23PCh. 7 - Prob. 24PCh. 7 - Prob. 25PCh. 7 - Prob. 26PCh. 7 - Prob. 27PCh. 7 - Prob. 28PCh. 7 - Prob. 29PCh. 7 - Prob. 30PCh. 7 - Prob. 31PCh. 7 - Prob. 32PCh. 7 - Prob. 33PCh. 7 - Refer to Problem 6-79. The alternatives all have a...Ch. 7 - Prob. 35PCh. 7 - Prob. 36PCh. 7 - Prob. 37PCh. 7 - Prob. 38PCh. 7 - Prob. 39PCh. 7 - Prob. 40PCh. 7 - Prob. 41PCh. 7 - Prob. 42PCh. 7 - Prob. 43PCh. 7 - Prob. 44PCh. 7 - Prob. 45PCh. 7 - Prob. 46PCh. 7 - AMT, Inc., is considering the purchase of a...Ch. 7 - Prob. 48PCh. 7 - Prob. 49PCh. 7 - Prob. 50PCh. 7 - Prob. 51PCh. 7 - Prob. 52PCh. 7 - Determine the after-tax yield (i.e., IRR on the...Ch. 7 - A 529-state-approved Individual Retirement Account...Ch. 7 - Prob. 55PCh. 7 - Prob. 56PCh. 7 - Prob. 57SECh. 7 - Prob. 58SECh. 7 - Prob. 59SECh. 7 - Refer to the chapter opener and Example 7-14. As...Ch. 7 - Prob. 61FECh. 7 - The Parkview Hospital is considering the purchase...Ch. 7 - Prob. 63FECh. 7 - Prob. 64FECh. 7 - Prob. 65FECh. 7 - Prob. 66FECh. 7 - Prob. 67FECh. 7 - Prob. 68FECh. 7 - Prob. 69FECh. 7 - Prob. 70FECh. 7 - Prob. 71FECh. 7 - Prob. 72FECh. 7 - Prob. 73FECh. 7 - Prob. 74FECh. 7 - Prob. 75FECh. 7 - If the federal income tax rate is 35% and the...Ch. 7 - Prob. 77FECh. 7 - Acme Manufacturing makes their preliminary...Ch. 7 - Prob. 79FECh. 7 - Prob. 80FECh. 7 - Prob. 81FECh. 7 - Prob. 82FECh. 7 - Prob. 83FECh. 7 - Prob. 84FECh. 7 - Two insulation thickness alternatives have been...
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