Basics Of Engineering Economy
2nd Edition
ISBN: 9780073376356
Author: Leland Blank, Anthony Tarquin
Publisher: MCGRAW-HILL HIGHER EDUCATION
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Chapter 6, Problem 38P
To determine
Selection of independent alternative on the basis of overall
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A large textile company is trying to decide which sludge dewatering process it should use ahead of its sludge drying operation. The costs associated with centrifuge and belt press systems are shown. Compare them on the basis of their annual worths using an interest rate of 10% per year.
System
Centrifuge
Belt Press
First cost, $
−235,000
−150,000
AOC, $/year
−48,000
−41,000
Overhaul in year 2, $
--
−26,000
Salvage value, $
40,000
10,000
Life, years
6
4
The annual worth of the centrifuge system is $− , and the annual worth of the belt press system is $− .
The system selected on the basis of the annual worth analysis is the (Click to select) belt press centrifuge system.
ABC Beverage, LLC purchases its 355-ml cans in large bulk from Wald-China Can Corporation.
The finish on the anodized aluminum surface is produced by mechanical finishing technologies
called brushing or bead blasting. Engineers at Wald are switching to more efficient, faster, and
cheaper machines to supply ABC. Use the estimates and MARR = 8% per year to select between
the two alternatives.
Brush alternative: P = $-400,000; n = 10 years;
S = $50,000; nonlabor AOC = $-60,000 in year 1,
decreasing by $5000 annually starting in year 2
Bead blasting alternative: P = $-400,000; n is
large, assume permanent; no salvage; nonlabor
AOC = $70,000 per year
Biomet Implants is planning new online patient diagnostics for surgeons while they operate. The new system will cost $300,000 to install in an operating room, $5000 annually for maintenance, and have an expected life of 4 years. The revenue per system is estimated to be $80,000 in year 1 and to increase by $10,000 per year through year 4. Determine if the project is economically justified using PW analysis and an MARR of 10% per year.
Chapter 6 Solutions
Basics Of Engineering Economy
Ch. 6 - Prob. 1PCh. 6 - Prob. 2PCh. 6 - Prob. 3PCh. 6 - Prob. 4PCh. 6 - Prob. 5PCh. 6 - Prob. 6PCh. 6 - Prob. 7PCh. 6 - Prob. 8PCh. 6 - A University of Massachusetts study found that...Ch. 6 - Prob. 10P
Ch. 6 - The Closing the Gaps initiative by the Texas...Ch. 6 - Prob. 12PCh. 6 - Prob. 13PCh. 6 - Prob. 14PCh. 6 - Prob. 15PCh. 6 - Prob. 16PCh. 6 - Prob. 17PCh. 6 - Prob. 18PCh. 6 - Prob. 19PCh. 6 - Prob. 20PCh. 6 - Prob. 21PCh. 6 - Prob. 22PCh. 6 - Prob. 23PCh. 6 - Prob. 24PCh. 6 - Prob. 25PCh. 6 - A company that manufactures rigid shaft couplings...Ch. 6 - For each of the following scenarios, state whether...Ch. 6 - Prob. 28PCh. 6 - Prob. 29PCh. 6 - Prob. 30PCh. 6 - Prob. 31PCh. 6 - Prob. 32PCh. 6 - Prob. 33PCh. 6 - Prob. 34PCh. 6 - Prob. 35PCh. 6 - The four alternatives described below are being...Ch. 6 - Prob. 37PCh. 6 - Prob. 38PCh. 6 - Ashley Foods, Inc. has determined that only one of...Ch. 6 - Five revenue projects are under consideration by...Ch. 6 - Four different machines are under consideration...Ch. 6 - Prob. 42PCh. 6 - Prob. 43PCh. 6 - Prob. 44PCh. 6 - Prob. 45PCh. 6 - Prob. 46PCh. 6 - Prob. 47PCh. 6 - Prob. 48PCh. 6 - Prob. 49PCh. 6 - Prob. 50PCh. 6 - Prob. 51PCh. 6 - Prob. 52PCh. 6 - Prob. 53PCh. 6 - Prob. 54PCh. 6 - Prob. 55PCh. 6 - Prob. 56PCh. 6 - Prob. 57PCh. 6 - Prob. 58PCh. 6 - Prob. 59PCh. 6 - Prob. 60APQCh. 6 - Prob. 61APQCh. 6 - Prob. 62APQCh. 6 - Prob. 63APQCh. 6 - Prob. 64APQCh. 6 - Prob. 65APQCh. 6 - Prob. 66APQCh. 6 - Prob. 67APQCh. 6 - Prob. 68APQCh. 6 - Prob. 69APQCh. 6 - Prob. 70APQ
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