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What is the energy requirement of an 85% efficient pump that transports 52L/s of water if...
1. A pump steadily delivers 13.7 kg/s of water at the conditions given below. Calculate the...
1. A pump steadily delivers 13.7 kg/s of water at the conditions given below. Calculate the pump power (hp). There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions). Pump Inlet Temperature = 20oC Pump Inlet Pressure = 182 kPa Pump Inlet Diameter = 11.1 cm Pump Inlet Elevation = 20 m Pump Exit Temperature = 20oC Pump Exit Pressure = 601 kPa Pump Exit Diameter = 7.8 cm Pump Exit Elevation = 20 m Answer...
QUESTION 5 A pump steadily delivers 17.2 kg/s of water at the conditions given below. Calculate...
QUESTION 5 A pump steadily delivers 17.2 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 = 20°C Pump Inlet Pressure - 192 kPa Pump Inlet Diameter = 13.3 cm Pump Inlet Elevation = 22 m Pump Exit Temperature = 20°C Pump Exit Pressure - 419 kPa Pump Exit Diameter = 3.9 cm Pump Exit Elevation = 41.4 m...
2. What is the minimum power requirement of a pump that is to increase the pressure...
2. What is the minimum power requirement of a pump that is to increase the pressure from 2 kPa to 6 MPa for a mass 10 kg/s of water (kw). (10 pts.)
THERMO Question 1 A pump steadily delivers 13.7 kg/s of water at the conditions given below....
THERMO Question 1 A pump steadily delivers 13.7 kg/s of water at the conditions given below. Calculate the pump power (hp). There is no heat transfer from the pump to the surroundings (i.e., adiabatic conditions). Pump Inlet Temperature = 20oC Pump Inlet Pressure = 170 kPa Pump Inlet Diameter = 11.4 cm Pump Inlet Elevation = 20 m Pump Exit Temperature = 20oC Pump Exit Pressure = 581 kPa Pump Exit Diameter = 5 cm Pump Exit Elevation = 20...
2 Underground water is to be pumped by a 80 percent efficient 10-kW submerged pump to a pool whose free surface is X m above the underground water level (see Figure 2). The diameter of the pipe is 10...
2 Underground water is to be pumped by a 80 percent efficient 10-kW submerged pump to a pool whose free surface is X m above the underground water level (see Figure 2). The diameter of the pipe is 10 cm on the intake side and 8 cm on the discharge side. Determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the pump inlet and the outlet and the...
Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine (a) the m
Underground water is to be pumped by a 78 percent efficient 5-kW submerged pump to a pool whose free surface is 30 m above the underground water level. The diameter of the pipe is 7 cm on the intake side and 5 cm on the discharge side. Determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the pump inlet and the outlet and the effect of the kinetic...
Liquid water at 120 kPa enters a 7 kW pump where its pressure is raised to...
Liquid water at 120 kPa enters a 7 kW pump where its pressure is raised to 4.7 MPa. If the elevation difference between the exit and the inlet levels is 10 m, determine the highest mass flow rate of liquid water this pump can handle. Neglect the kinetic energy change of water, and take the specific volume of water to be 0.001 m3/kg The highest mass flow rate of liquid water is kg/s
A: Assuming that the pump is 50% efficient, what is the highest elevation h that water...
A: Assuming that the pump is 50% efficient, what is the
highest elevation h that water from the fountain reaches assuming
that loss is otherwise neglible? Note that the water resevoir is at
the elevation as the nozzle.
B:If the nozzle is doubled, by what factor will h change if
the system is not otherwise changed?
PROBLEM I-AROUND THE BEND inlet Air flows through the s-bend duct shown in the figure in a steady and incompressible manner. The cross section...
A pump increases the water pressure from 100 kPa at the inlet to 900 kPa at...
A pump increases the water pressure from 100 kPa at the inlet to 900 kPa at the outlet. Water enters this pump at 15 degree C through a 1-cm-diameter opening and exits through a 1.5-cm-diameter opening. Determine the velocity of the water at the inlet and outlet when the mass flow rate through the pump is 0.5 kg/s. Will these velocities change significantly if the inlet temperature is raised to 40 degree C?
(5 pts) A pump is pumping water from a lake to the top of a mountain...
(5 pts) A pump is pumping water from a lake to the top of a mountain through a constant- diameter pipe. Water exits the pipe at a volumetric flow rate of 0.04 m/s. The vertical distance between the lake surface and the pipe exit at the top of the mountain is 100 m. The diameter of the pipe is 10 cm. All mechanical energy losses are negligible and the flow is steady and incompressible. (Water density-I g/cm, ?-I.) Determine a)...
QUESTION 5 A pump steadily delivers 17.2 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 = 20°C Pump Inlet Pressure - 192 kPa Pump Inlet Diameter = 13.3 cm Pump Inlet Elevation = 22 m Pump Exit Temperature = 20°C Pump Exit Pressure - 419 kPa Pump Exit Diameter = 3.9 cm Pump Exit Elevation = 41.4 m...
2. What is the minimum power requirement of a pump that is to increase the pressure from 2 kPa to 6 MPa for a mass 10 kg/s of water (kw). (10 pts.)
2 Underground water is to be pumped by a 80 percent efficient 10-kW submerged pump to a pool whose free surface is X m above the underground water level (see Figure 2). The diameter of the pipe is 10 cm on the intake side and 8 cm on the discharge side. Determine (a) the maximum flow rate of water and (b) the pressure difference across the pump. Assume the elevation difference between the pump inlet and the outlet and the...
Liquid water at 120 kPa enters a 7 kW pump where its pressure is raised to 4.7 MPa. If the elevation difference between the exit and the inlet levels is 10 m, determine the highest mass flow rate of liquid water this pump can handle. Neglect the kinetic energy change of water, and take the specific volume of water to be 0.001 m3/kg The highest mass flow rate of liquid water is kg/s
A: Assuming that the pump is 50% efficient, what is the
highest elevation h that water from the fountain reaches assuming
that loss is otherwise neglible? Note that the water resevoir is at
the elevation as the nozzle.
B:If the nozzle is doubled, by what factor will h change if
the system is not otherwise changed?
PROBLEM I-AROUND THE BEND inlet Air flows through the s-bend duct shown in the figure in a steady and incompressible manner. The cross section...
A pump increases the water pressure from 100 kPa at the inlet to 900 kPa at the outlet. Water enters this pump at 15 degree C through a 1-cm-diameter opening and exits through a 1.5-cm-diameter opening. Determine the velocity of the water at the inlet and outlet when the mass flow rate through the pump is 0.5 kg/s. Will these velocities change significantly if the inlet temperature is raised to 40 degree C?
(5 pts) A pump is pumping water from a lake to the top of a mountain through a constant- diameter pipe. Water exits the pipe at a volumetric flow rate of 0.04 m/s. The vertical distance between the lake surface and the pipe exit at the top of the mountain is 100 m. The diameter of the pipe is 10 cm. All mechanical energy losses are negligible and the flow is steady and incompressible. (Water density-I g/cm, ?-I.) Determine a)...
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