
QUESTION 3 A motor capable of delivering 160 hp to steel rolling mill drive is being...
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...
Each of the two pumps (ABC and XYZ) can deliver an actual
amount of 100 hp to an agricultural application. Both are being
evaluated in a present economy study. The selected pump will only
be utilized for one year, and it will have no market value at the
end of the year. Pertinent data are summarized as follows:
If electric power costs $0.10 per kWh and the pump will be
operated 4,000 hours per year, which pump should be chosen?...
Question 4: A machine capable of delivering 100 hp has been considered for the production of a part. Calculate the profit that this machine generates per day assuming the following: Material cost to produce one part $20 Production rate (parts/hour) 300 7 S50 S20 $10 5% S0.15 80% Hours available for production per day Selling price per defect-free part Operators cost per hour Overhead costs per hour Percent parts rejected Electric power cost per kw-hr Machine efficiency Note: 1 hp=...
number 2
PW, AW An electric motor is rated at 10 horsepower (HP) and costs $800. Its full-load efficiency is specified to be 85%. A newly designed, high-efficiency motor of the same size has an efficiency of 90%, but costs $1,200. It is estimated that the motors will operate at a rated 10-HP output for 1,500 hours a year, and the cost of energy will be $0.07 per kilowatt-hour. Each motor is expected to have a 15-year life. At the...
Please show work. Thank you!
Two 180-horsepower (HP) motors are being considered for installation at a municipal sewage-treatment plant. The first costs $6,300 and has an operating efficiency of 77%. The second costs $3,600 and has an efficiency of 70%. Both motors are projected to have zero salvage value after a life of 10 years. If all the annual charges. such as insurance maintenance, etc., amount to a total of 13% of the original cost of each motor, and if...
D Question 3 5 pts A standard electric motor is rated at 10 horsepower (HP) and costs $800. its full-load efficiency is specified to be 87%. A newly designed, high efficiency motor of the same size has an efficiency of 93%, but costs $1,200. It is estimated that the motors will operate at a rated 10-HP output for 2,500 hours a year, and the cost of energy will be $0.07 per kilowatt- hour. Each motor is expected to have 12-year...