Secure https/ ENGR450 Engineering Economy 2017 Homework: Chapter 6.2 Score: 0 of

Question

Secure https/ ENGR450 Engineering Economy 2017 Homework: Chapter 6.2 Score: 0 of 1 p Problem 6-16 (algorithmic) Save 40, 4 (1 complete) Hw Score: 0%. OoApt Question Heig A speed payose 30-horsepower electric motor has an eficiency of 90% its purchase and can be purchased for $3.100 and its effie-ey:s 92% Ether operated 4 (kWh) MARR a. Which motor should be chosen? b. For an instalaton price is $2. 100 A second horsepower high eficiency metr motor will be operated 4,500 hours per year at fuil load, and electricity costs $0 11 per kulowatl-hour .18%per year, and nei note wil have a market value atte end of te eghtyear study perod ncre mental mestert of S., more enc ert motor, whats the pw ofte energy sargs over the egt year pen n Clickte icon to new the nterest arndarnaty table "or decrete componing when , a.The pw ofthe motor wete dkiency of 90%(Round to the nearest dolan 18% per year Enter your answer in the answer box and then cick Check Answer 3 remaning-

Explanation / Answer

A)

MOTER B will be right option

b)

cost of electricity consumed by moter A per year = 30*746*4500/1000*0.11=$11078

PW table is below.

YEAR COST PWF PW 0.00 $2,100.00 1.00 $2,100.00 1.00 $11,078.10 0.85 $9,388.22 2.00 $11,078.10 0.72 $7,956.12 3.00 $11,078.10 0.61 $6,742.47 4.00 $11,078.10 0.52 $5,713.96 5.00 $11,078.10 0.44 $4,842.34 6.00 $11,078.10 0.37 $4,103.68 7.00 $11,078.10 0.31 $3,477.69 8.00 $11,078.10 0.27 $2,947.20 TOTAL= $47,271.68

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