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In: Mechanical Engineering

A proposed water tank on the sixth floor (roof top) of the UTPA administration building would...

A proposed water tank on the sixth floor (roof top) of the UTPA administration building would be used to supply pressurized water for the campus. A pump fills the tank at a rate of 15.6 kg/s. What size motor (hp) is needed to operate the pump given the data below? The motor size (hp) must be 20% greater than the required pump work. Note: Give the motor size as a positive value. The pump includes the riser pipe to the tank. There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions).

Pump Inlet Temperature = 20oC Pump

Inlet Pressure = 192 kPa

Pump Inlet Diameter = 11.7 cm

Pump Inlet Elevation = 24.7 m

Pump Exit Temperature = 20oC

Pump Exit Pressure = 269 kPa

Pump Exit Diameter = 5.4 cm

Pump Exit Elevation = 49.7 m

correct answer: 8.65 ± 5%

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Expert Solution

samet mamat answered 2 years ago
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