At the Motorola plant in Mesa, Arizona, it is desired to determine whether one-inch-thick insulation or two-inch-thick insulation should be used to reduce heat loss from a long section of steam pipe. The heat loss from this pipe without any insulation would cost Php200 per linear foot per year. The one-inch insulation will eliminate 88% of the heat loss and will cost Php60 per foot. Two-inch insulation will eliminate 92% of the heat loss and will cost Php110 per foot. The steam pipe is 1,000 feet in length and will last for10 years. MARR = 6% per year. Which insulation thickness should be recommended?
At the Motorola plant in Mesa, Arizona, it is desired to determine whether one-inch-thick insulation or two-inch-thick insulation should be used to reduce heat loss from a long section of steam pipe. The heat loss from this pipe without any insulation would cost Php200 per linear foot per year. The one-inch insulation will eliminate 88% of the heat loss and will cost Php60 per foot. Two-inch insulation will eliminate 92% of the heat loss and will cost Php110 per foot. The steam pipe is 1,000 feet in length and will last for10 years. MARR = 6% per year. Which insulation thickness should be recommended?
Chapter1: Making Economics Decisions
Section: Chapter Questions
Problem 1QTC
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At the Motorola plant in Mesa, Arizona, it is desired to determine whether one-inch-thick insulation or two-inch-thick insulation should be used to reduce heat loss from a long section of steam pipe. The heat loss from this pipe without any insulation would cost Php200 per linear foot per year. The one-inch insulation will eliminate 88% of the heat loss and will cost Php60 per foot. Two-inch insulation will eliminate 92% of the heat loss and will cost Php110 per foot. The steam pipe is 1,000 feet in length and will last for10 years. MARR = 6% per year. Which insulation thickness should be recommended?
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