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Consider two air-conditioning systems with the

Engineering Economy (1) | 16th Edition | ISBN: 9780133439274 | Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling ISBN: 9780133439274 207

Solution for problem 18.8 Chapter 18

Engineering Economy (1) | 16th Edition

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Engineering Economy (1) | 16th Edition | ISBN: 9780133439274 | Authors: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling

Engineering Economy (1) | 16th Edition

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Problem 18.8

Consider two air-conditioning systems with the estimatesbelow. (a) Use AW analysis to determinethe sensitivity of the economic decision to MARR values of 4%, 6%, and 8% per year. (b) Develop thespreadsheet functions that will display the six AWvalues.System 1 2First cost, $ 10,000 17,000AOC, $ per year 600 150Salvage value, $ 100 300New compressor andmotor cost at midlife, $1,750 3,000Life, years 8 12

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BE 1500 – Fall 2016 Homework 1 Solutions 1. Solution >> format short >> a=4*5*cos(pi/3)-(log(1.24))^(1/3)*tan(pi/3) a = 8.9622 1/2 2. Solution >> b=(2*tand(30))^2/15-log10(14)*exp(1/8)/12-25/(12+sind(30)) b = -2.0193 1/2 3. Solution >> format long >> c=17^(1/2) c = 4.123105625617661 >> c=sqrt(17) c = 4.123105625617661 >> c=nthroot(17,2) c = 4.123105625617661 1 4. Solution a. >> format short e >> cosd(45) ans = 7.0711e-01 1/2 b. >> tan(2*pi/3) ans = -1.7321e+00 1/2 c. >> exp(2/3) ans = 1.9477e+00 1/2 d. >> log10(27) ans = 1.4314e+00 1/2 e. >> log

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Chapter 18, Problem 18.8 is Solved
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Textbook: Engineering Economy (1)
Edition: 16
Author: William G. Sullivan, Elin M. Wicks, C. Patrick Koelling
ISBN: 9780133439274

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Consider two air-conditioning systems with the