Engineering Economy, Student Value Edition (17th Edition)
17th Edition
ISBN: 9780134838137
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
Publisher: PEARSON
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Chapter 1, Problem 7P
To determine
How many months it will take for a 2,000 ft2 ICF home to pay back the additional consturction cost.
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Your boss has asked you to evaluate the economics of replacing 1,000 60-Watt incandescent light bulbs (ILBs) with 1,000 compact fluorescent lamps (CFLs) for a particular lighting application. During your investigation you discover that 13-Watt CFLs costing $2.00 each will provide the same illumination as standard 60-Watt ILBs costing $0.50 each. Interestingly, CFLs last, on average, eight times as long as incandescent bulbs. The average life of an ILB is one year over the anticipated usage of 1,000 hours each year. Each incandescent bulb costs $2.00 to install/replace. Installation of a single CFL costs $3.00, and it will also be used 1,000 hours per year. Electricity costs $0.12 per kiloWatt hour (kWh), and you decide to compare the two lighting options over an 8-year study period. If the MARR is 12% per year, compare the economics of the two alternatives and write a brief report of your findings for the boss.
Your boss has asked you to evaluate the economics of replacing 1,000 60-Watt incandescent light bulbs (ILBs) with
1,000 compact fluorescent lamps (CFLs) for a particular lighting application. During your investigation you discover that
13-Watt CFLs costing $2.00 each will provide the same illumination as standard 60-Watt ILBs costing $0.50 each.
Interestingly, CFLs last, on average, eight times as long as incandescent bulbs. The average life of an ILB is one year
over the anticipated usage of 1,000 hours each year. Each incandescent bulb costs $1.90 to install/replace. Installation
of a single CFL costs $2.90, and it will also be used 1,000 hours per year. Electricity costs $0.12 per kilowatt hour
(kWh), and you decide to compare the two lighting options over an 8-year study period. If the MARR is 10% per year,
compare the economics of the two alternatives and write a brief report of your findings for the boss. Assume that both
installation cost and cost of the bulbs occur at the…
Your boss has asked you to evaluate the economics of replacing 1,000 60-Watt incandescent light bulbs (ILBS) with 1,000 compact fluorescent lamps (CFLs) for a particular lighting application. During your investigation you discover that 13-Watt CFLS
costing $2.00 each will provide the same illumination as standard 60-Watt ILBS costing $0.50 each. Interestingly, CFLs last, on average, eight times as long as incandescent bulbs. The average life of an ILB is one year over the anticipated usage of 1,000
hours each year. Each incandescent bulb costs $2.00 to install/replace. Installation of a single CFL costs $3.00, and it will also be used 1,000 hours per year. Electricity costs $0.12 per kilowatt hour (kWh), and you decide to compare the two lighting options
over an 8-year study period. If the MARR is 12% per year, compare the economics of the two alternatives and write a brief report of your findings for the boss. Assume that both installation cost and cost of the bulbs occur at the…
Chapter 1 Solutions
Engineering Economy, Student Value Edition (17th Edition)
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