1. Engineering
  2. Mechanical Engineering
  3. an electric motor is being used to turn a pump...

Question: an electric motor is being used to turn a pump...

Question details

An electric motor is being used to turn a pump which accelerates water from 10 ft/min to 60 ft/min while also boosting the pressure from 15 to 25 psia. The electric motor is operating at a nominal 230 V drawing 12 amps. The pump handles roughly 500 gallons-per-minute (gpm) at sea level conditions (ρ = 62.4 lbm/ft3). Determine a.) the rate of change in mechanical energy (W) of the water, b.) the outlet to inlet area ratio, Aout/Ain, of the pump,andc.) the electrical power input (W) into the motor. Neglect changes in potential energy of the flow.

Solution by an expert tutor
Blurred Solution
This question has been solved
Subscribe to see this solution