A heat exchanger is being installed as part of a plant modernization program. It costs $80,000, including
installation, and is expected to reduce the overall plant fuel cost by $20,000 per year. Estimates of the
useful life of the heat exchanger range from an optimistic 12 years to a pessimistic 4 years. The most
likely value is 5 years. Assume the heat exchanger has no salvage value at the end of its useful life.
Determine the pessimistic, most likely, and optimistic rates of return.
The pessimistic rate of return is:
"R = (20,000\u00d7 - 80,000)\/80,000\u00d7100" % = 0%.
The most likely rate of return is:
"R = (20,000\u00d75 - 80,000)\/80,000\u00d7100" % = 25%.
The optimistic rate of return is:
"R = (20,000\u00d712 - 80,000)\/80,000\u00d7100" % = 200%.
Comments
Leave a comment