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Two mutually exclusive alternatives for office building refrigeration and air conditioning are being investigated. Using the chart below, and an effective interest rate of 10% per year, which chilling system should be selected on the basis of la present worth analysis? (All the alternatives presented below were calculated using compound interest factor tables including all decimal places) Chilling Systems Absorption (A) Compression (C) First Cost, $ -14,600 12,000 AOC, $/yr -1,200 -900 Overhaul in year 4. $ -2,500 0 Overhaul in year 5, $ 0 -1,800 Salvage Value, $ +1,100 0 Life in Years 10 10 Recommend Absorption System with PWA= $-23,258 Recommend Compression System with PWc= $-18,648 Recommend Compression System with PWc= $-16,413 Recommend Absorption System with PWA= $-15,883 **Machine C and D are two mutually exclusive alternatives with different lives. Based on the data provided and the LCM approach, determine the correct equations to find PW of each machine at an interest rate of 12% per year. Machine C Machine D Initial cost, $ -65,000 -55,000 Annual cost $/year 10,000 - 15,000 Salvage value, $ 10,000 25,000 Life, years 8 4 PWC =-65,000-10,000(P/A,12%.8) +10,000(P/F12%,8) PWD - 55,000 -15,000(P/A,12%,8) +25,000(P/F.12%,8) PWC = -65,000 - 10,000[P/A, 12%,8) 1 10,000(P/F12%,8) PWD = -55,000 - 15,000(P/A,12%,8) = 55,000(P/F.12%,4) 125,000(P/F,12%,8) PWC = -65,000 10,000(PZA, 12%.8) 110,000(P/F,12%.8) PWD = -55,000 -15,000(P/A,12%,8)=30,000(P7F.12%,4)425,000(P/E,12%,8) PWC = -65,000 -10,000(P/A,12%.8) + 10,000(P/F.12%,8) PWD = -55,000 -15,000(P/A,12%,8) -30,000(P/E,12%.4) ++ Complete the following analysis of mutually exclusive alternatives and select the preferred alternative. The life of each alternative is 15 years and the MARR= 12% per year. Alternative A Alternative B First Cost in $ -15,000 -13,000 AOC, $/year -400 -650 Salvage value, $ +1,000 +2,000 Life, in years 15 15 Based on the future worth analysis in year 15, select alternative B with FWB =- $93,389 Based on the present worth analysis, select alternative A with PWA = $17,542 Based on the present worth analysis, select alternative B with PWB = -$17,793 Based on the future worth analysis in year 15, select alternative A with FWA = -$96,016 Chilling Systems Absorption (A) Compression (C) First Cost, $ -14,600 -12,000 AOC. $/yn -1,200 -900 Overhaul in year 4. $ -2,500 0 Overhaul in years. S 0 -1,800 Salvage Value, $ +1,100 0 Life in Years 10 10 Machine C Machine D Initial cost, $ -65,000 -55,000 Annual cost, $/year - 10,000 -15,000 Salvage value, $ 10,000 25,000 Life, years 8 4. PWC = -65,000 -10,000(P/A,12%,8) +10,000(P/F,12%,8) PWD = -55,000 -15,000(P/A,12%,8) +25,000(P/F,12%,8) PWC = -65,000 -10,000(P/A,12%,8) +10,000{P/F,12%,8) PWD = -55.000 -15.000(P/A,12%,8) -55,000(P/F.12%,4) +25,000(P/F,12%,8) PWC = -65,000 - 10.000(P/A 12%,8) +10,000(P/F.12%,8) PWD = -55,000 -15.000(P/A, 12%,8) -30,000(P/F.12%,4) +25,000(P/F,12%,8) PWC = -65,000 -10,000(P/A, 12%.8) +10.000(P/F.12%,8) PWD = -55,000 -15,000(P/A,12%,8) -30,000(P/F,12%,4) Alternative A Alternative B First Cost in $ | -15.000 -13,000 AOC, $/year -400 -650 Salvage value, $ #1,000 +2,000 Life, in years 15 15 Based on the future worth analysis in year 15, select alternative B with FWB =-$93,389 Based on the present worth analysis, select alternative A with PWA = -$17 542 Based on the present worth analysis, select alternative B with PWB = -$17.793 Based on the future worth analysis in year 15, select alternative A with FWA = -$96,016 Two mutually exclusive alternatives for office building refrigeration and air conditioning are being investigated. Using the chart below, and an effective interest rate of 10% per year, which chilling system should be selected on the basis of la present worth analysis? (All the alternatives presented below were calculated using compound interest factor tables including all decimal places) Chilling Systems Absorption (A) Compression (C) First Cost, $ -14,600 12,000 AOC, $/yr -1,200 -900 Overhaul in year 4. $ -2,500 0 Overhaul in year 5, $ 0 -1,800 Salvage Value, $ +1,100 0 Life in Years 10 10 Recommend Absorption System with PWA= $-23,258 Recommend Compression System with PWc= $-18,648 Recommend Compression System with PWc= $-16,413 Recommend Absorption System with PWA= $-15,883 **Machine C and D are two mutually exclusive alternatives with different lives. Based on the data provided and the LCM approach, determine the correct equations to find PW of each machine at an interest rate of 12% per year. Machine C Machine D Initial cost, $ -65,000 -55,000 Annual cost $/year 10,000 - 15,000 Salvage value, $ 10,000 25,000 Life, years 8 4 PWC =-65,000-10,000(P/A,12%.8) +10,000(P/F12%,8) PWD - 55,000 -15,000(P/A,12%,8) +25,000(P/F.12%,8) PWC = -65,000 - 10,000[P/A, 12%,8) 1 10,000(P/F12%,8) PWD = -55,000 - 15,000(P/A,12%,8) = 55,000(P/F.12%,4) 125,000(P/F,12%,8) PWC = -65,000 10,000(PZA, 12%.8) 110,000(P/F,12%.8) PWD = -55,000 -15,000(P/A,12%,8)=30,000(P7F.12%,4)425,000(P/E,12%,8) PWC = -65,000 -10,000(P/A,12%.8) + 10,000(P/F.12%,8) PWD = -55,000 -15,000(P/A,12%,8) -30,000(P/E,12%.4) ++ Complete the following analysis of mutually exclusive alternatives and select the preferred alternative. The life of each alternative is 15 years and the MARR= 12% per year. Alternative A Alternative B First Cost in $ -15,000 -13,000 AOC, $/year -400 -650 Salvage value, $ +1,000 +2,000 Life, in years 15 15 Based on the future worth analysis in year 15, select alternative B with FWB =- $93,389 Based on the present worth analysis, select alternative A with PWA = $17,542 Based on the present worth analysis, select alternative B with PWB = -$17,793 Based on the future worth analysis in year 15, select alternative A with FWA = -$96,016 Chilling Systems Absorption (A) Compression (C) First Cost, $ -14,600 -12,000 AOC. $/yn -1,200 -900 Overhaul in year 4. $ -2,500 0 Overhaul in years. S 0 -1,800 Salvage Value, $ +1,100 0 Life in Years 10 10 Machine C Machine D Initial cost, $ -65,000 -55,000 Annual cost, $/year - 10,000 -15,000 Salvage value, $ 10,000 25,000 Life, years 8 4. PWC = -65,000 -10,000(P/A,12%,8) +10,000(P/F,12%,8) PWD = -55,000 -15,000(P/A,12%,8) +25,000(P/F,12%,8) PWC = -65,000 -10,000(P/A,12%,8) +10,000{P/F,12%,8) PWD = -55.000 -15.000(P/A,12%,8) -55,000(P/F.12%,4) +25,000(P/F,12%,8) PWC = -65,000 - 10.000(P/A 12%,8) +10,000(P/F.12%,8) PWD = -55,000 -15.000(P/A, 12%,8) -30,000(P/F.12%,4) +25,000(P/F,12%,8) PWC = -65,000 -10,000(P/A, 12%.8) +10.000(P/F.12%,8) PWD = -55,000 -15,000(P/A,12%,8) -30,000(P/F,12%,4) Alternative A Alternative B First Cost in $ | -15.000 -13,000 AOC, $/year -400 -650 Salvage value, $ #1,000 +2,000 Life, in years 15 15 Based on the future worth analysis in year 15, select alternative B with FWB =-$93,389 Based on the present worth analysis, select alternative A with PWA = -$17 542 Based on the present worth analysis, select alternative B with PWB = -$17.793 Based on the future worth analysis in year 15, select alternative A with FWA = -$96,016