Question

In: Mechanical Engineering

1) A pump steadily delivers 15.9 kg/s of water at the conditions given below. Calculate the...

1) A pump steadily delivers 15.9 kg/s of water at the conditions given below. Calculate the pump power (kW).

There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions).

Pump Inlet Temperature = 20oC

Pump Inlet Pressure = 196 kPa

Pump Inlet Diameter = 10 cm

Pump Inlet Elevation = 22.7 m

Pump Exit Temperature = 20oC

Pump Exit Pressure = 400 kPa

Pump Exit Diameter = 10 cm

Pump Exit Elevation = 45.4 m

2) A pump steadily delivers 16.3 kg/s of water at the conditions given below. Calculate the pump power (kW).

There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions).

Pump Inlet Temperature = 20oC

Pump Inlet Pressure = 107 kPa

Pump Inlet Diameter = 11 cm

Pump Inlet Elevation = 20.1 m

Pump Exit Temperature = 20oC

Pump Exit Pressure = 380 kPa

Pump Exit Diameter = 4.2 cm

Pump Exit Elevation = 44.9 m

Solutions

Expert Solution


Related Solutions

A pump steadily delivers 8.94 kg/s of water at the conditions given below. Calculate the pump...
A pump steadily delivers 8.94 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 = 1.61 kW. There are no changes in kinetic or potential energy. Pump Inlet Temperature = 50oC Pump Inlet Pressure = 1.75 MPa Pump Exit Temperature = 50oC Pump Exit Pressure = 4.17 MPa
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. 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 = 50oC Pump Inlet Pressure = 115 kPa Pump Exit Temperature = 50oC Pump Exit Pressure = 877 kPa 2....
Q2 The pump of a LiBr--water absorption refrigeration system delivers (0.7 kg/s) of solution. The absorption...
Q2 The pump of a LiBr--water absorption refrigeration system delivers (0.7 kg/s) of solution. The absorption system operates at the following temperatures: generator (I 10 'C); condenser (40 'C); evaporator (lO 'C); and absorber (33 'C). Calculate; (a) The refrigerant mass flow rate, the refrigerating capacity, and the COP of the system. (b) The COP of an ideal heat-operated refrigeration system that operates with the same temperatures.
A centrifugal pump delivers water at rate of 0.22 m3/s from a reservoir at a ground...
A centrifugal pump delivers water at rate of 0.22 m3/s from a reservoir at a ground level to another reservoir to height 'h' through a vertical pipe of 0.2 m diameter. Both are open to atmosphere. Power input to pump is 90 kW and it operates with 75% efficiency . f=0.004 use g=9.8 m/s2 density=1000kg/m3. Find 'h'.
A pump takes water at 60°F from a large reservoir and delivers it to the bottom...
A pump takes water at 60°F from a large reservoir and delivers it to the bottom of an open elevated tank 25 ft above the reservoir surface through a 3 inch ID pipe. The inlet to the pump is located 10 ft below the water surface, and the water level in the tank is constant at 160 ft above the reservoir surface. The pump delivers 150 gpm. If the total loss of energy due to friction in the piping system...
A pump operating at steady state receives 1.5 kg/s of liquid water at 50oC, 1.5 MPa....
A pump operating at steady state receives 1.5 kg/s of liquid water at 50oC, 1.5 MPa. The pressure of the water at the pump exit is 14 MPa. The magnitude of the work required by the pump is 25.2 kW. Stray heat transfer and changes in kinetic and potential energy are negligible. Determine the work required by a reversible pump operating with the same conditions, in kW, and the isentropic pump efficiency.
Water flows through a shower head steadily at a rate of 8 kg/min. The water is...
Water flows through a shower head steadily at a rate of 8 kg/min. The water is heated in an electric water heater from 158C to 458C. In an attempt to conserve energy, it is proposed to pass the drained warm water at a temperature of 388C through a heat exchanger to preheat the incoming cold water. Design a heat exchanger that is suitable for this task, and discuss the potential savings in energy and money for your area.
2. A pump delivers 30o C water from a supply reservoir to an elevated storage tank...
2. A pump delivers 30o C water from a supply reservoir to an elevated storage tank at a discharge rate of 120 litres/sec. At this discharge the manufacturer’s data indicates the net positive suction head (NPSH) for the pump is 6.0 m. The water surface elevation difference between the reservoir and the tank is 45.0 m. The total length of pipe between the two is 150.0 m, 10.0 m of which is located on the suction side of the pump....
A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa,...
A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa, 400 deg C. If the outlet temperature is 100 deg C and the turbine has an output of 1000 kW determine the quality of the outlet steam, the rate of entropy generation and the isentropic efficiency of the turbine. (Changes in kinetic and potential energy are negligible).
A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa,...
A heavily insulated steam turbine operates steadily and is supplied with 1 kg/s steam at 2MPa, 400 deg C. If the outlet temperature is 100 deg C and the turbine has an output of 1000 kW determine the quality of the outlet steam, the rate of entropy generation and the isentropic efficiency of the turbine. (Changes in kinetic and potential energy are negligible).
ADVERTISEMENT
ADVERTISEMENT
ADVERTISEMENT