A pump steadily delivers 9.7 kg/s of water at the conditions given below. Calculate the pump power (hp).

Thermodynamics

1. The answer is -12.31 can someone please explain how we get that.

The rate of heat transfer from the pump to the surroundings is Q = 1.7 kW.

There are no changes in kinetic or potential energy.

Pump Inlet Temperature = 50^oC

Pump Inlet Pressure = 115 kPa

Pump Exit Temperature = 50^oC

Pump Exit Pressure = 877 kPa

A pump steadily delivers 9.7 kg/s of water at the conditions given below. Calculate the pump power (hp).

The rate of heat transfer from the pump to the surroundings is Q = 1.7 kW.

There are no changes in kinetic or potential energy.

Pump Inlet Temperature = 50^oC

Pump Inlet Pressure = 115 kPa

Pump Exit Temperature = 50^oC

Pump Exit Pressure = 877 kPa

can someone please explain how we get the answer -40.45

A pump steadily delivers 7.89 kg/s of water at the conditions given below. Calculate the pump power (hp).

The rate of heat transfer from the pump to the surroundings is Q = 1.42 kW.

There are no changes in kinetic or potential energy.

Pump Inlet Temperature = 50^oC

Pump Inlet Pressure = 1.05 MPa

Pump Exit Temperature = 50^oC

Pump Exit Pressure = 4.65 MPa

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Expert Solution

samet mamat answered 1 year ago

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