Contemporary Engineering Economics (6th Edition)
6th Edition
ISBN: 9780134105598
Author: Chan S. Park
Publisher: PEARSON
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Question
Chapter 14, Problem 21P
(a):
To determine
Find out the replacement of the defender.
(b):
To determine
Calculate the economic service life.
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A machine that has been used for 8 years has a market value of $2,500 now, which decreases by $100 each year for the next 5 years. Maintenance costs this year are $5k, and for the next 5 years they are estimated at $6k, $7k, $8k and $9k. Determine the marginal cost of extending the service for two years if the MARR is 12%.
Answer the questions:
a) How much is the loss in market value in year 2?
b) How much is the loss in interest in year 2?
c) What is the Marginal Cost in year 2?
d) If the machine's minimum EUAC is $5,500, when, in years, should the machine be replaced?
Acme-Denver Corporation is considering the replacement of an old, relatively inefficient surface-grinder machine that was purchased seven years ago at a cost of $12,000. The machine had an original expected life of 10 years and a zero estimated salvage value at the end of that period. The current market value of the machine is $2,000. The divisional manager reports that a new machine can be bought and installed for $14,000. Over its five-year life, this machine will expand sales from $10,000 to $12,500 a year and, furthermore, will reduce labor and raw materials usage sufficiently to cut annual operating costs from $7,000 to $5,000. The new machine has an estimated salvage value of $4,000 at the end of its five-year life. The firm's MARR is 12%.(a) Should the new machine be purchased now?(b) What current market value of the new machine would make the two options equal?
A firm owns a pressure vessel that it is contemplating replacing.
The old pressure vessel has annual operating and maintenance
expenses of $60,000 per year and it can kept for five more years,
at which time it will have zero market value. It is believed that $
20,000 could be obtained for the old pressure vessel if it were
sold now. A new pressure vessel can be purchased for $
110,000. The pressure vessel will have an market value of $
50,000 in five years and will have annual operating and
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pressure vessel should be replaced.
Chapter 14 Solutions
Contemporary Engineering Economics (6th Edition)
Ch. 14 - Prob. 1PCh. 14 - Prob. 2PCh. 14 - Prob. 3PCh. 14 - Prob. 4PCh. 14 - Prob. 5PCh. 14 - Prob. 6PCh. 14 - Prob. 7PCh. 14 - Prob. 8PCh. 14 - Prob. 9PCh. 14 - Prob. 10P
Ch. 14 - Prob. 11PCh. 14 - Prob. 12PCh. 14 - Prob. 13PCh. 14 - Prob. 14PCh. 14 - Prob. 15PCh. 14 - Prob. 16PCh. 14 - Prob. 17PCh. 14 - Prob. 18PCh. 14 - Prob. 19PCh. 14 - Prob. 20PCh. 14 - Prob. 21PCh. 14 - Prob. 22PCh. 14 - Prob. 23PCh. 14 - Prob. 24PCh. 14 - Prob. 25PCh. 14 - Prob. 26PCh. 14 - Prob. 27PCh. 14 - Prob. 28PCh. 14 - Prob. 29PCh. 14 - Prob. 30PCh. 14 - Prob. 31PCh. 14 - Prob. 32PCh. 14 - Prob. 33PCh. 14 - Prob. 34PCh. 14 - Prob. 35PCh. 14 - Prob. 36PCh. 14 - Prob. 37PCh. 14 - Prob. 38PCh. 14 - Prob. 39PCh. 14 - Prob. 40PCh. 14 - Prob. 41PCh. 14 - Prob. 42PCh. 14 - Prob. 43PCh. 14 - Prob. 44PCh. 14 - Prob. 45PCh. 14 - Prob. 46PCh. 14 - Prob. 47PCh. 14 - Prob. 48PCh. 14 - Prob. 49PCh. 14 - Prob. 1STCh. 14 - Prob. 2STCh. 14 - Prob. 3ST
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