Question

Problem 6-30 (algorithmic) Question Help * Two electric motors are being considered to drive a centrifugal pump. Each motor is capable of delivering 100 horsepower (output) to the pumping operation. It is expected that the motors will be in use 2,500 hours per year and the MARR-8% per year. (1 hp 0.746 kW) a. If electricity costs SX per kilowatt-hour, calculate the annual cost of electrical power for each motor b. What cost of electricity (S/kWh) makes the two pumps breakeven (i.e. have the same equivalent annual cost)? Assume repeatability and MVs-SO c. Choose the graph to illustrate your answer to Part (b) d. Which motor should be selected? 100 att ser,5 alcu oteperyo arard heMERRm8% Click the icon to view the datatable for the additional information about two alternatives Click the icon to view the interest and annuity table for discrete compounding when the MARR is 8% per year. a. The annual cost of electrical power for Motor A is $(| | x Х). (Round to two decimal places.) Problem 6-30 (algorithmic) EQuestion Help Two electric motors are being considered to drive a centrifugal pump. Each motor is capable of delivering 100 horsepower (output) to the pumping operation. It is expected that the motors will be in use 2,500 hours per year and the MARR 8% per year. (1 hp= 0.746 kW) a. If electricity costs $X per kilowatt-hour, calculate the annual cost of electrical power for each motor b. What cost of electricity ($(kWh) makes the two pumps breakeven (ie, have the same equivalent annual cost)? Assume repeatability and MVS = $0. c. Choose the graph to illustrate your answer to Part (b). d. Which motor should be selected? Ell Click the icon to view the datatable Click the icon to view the interest More Info a. The annual cost of electrical power for Initial cost Electrical efficiency Annual maintenance Life Motor A $1,300 0.78 $700 10 years Motor B $600 0.57 18 years Print Done Enter your answer in the answer box

Answer 1

Solu-hon: eaY HARR 84, prye씨 @tc, stof ele hich-i,ー× ビråoathon , Jį arvud at. DGoa frrual oet pale * Pouen.ured 0.13 32919a,90) . =

2. rf annual cast sane A- llo ④ ashich mohws.oul e. Celected : net-annual a wod be a lot le