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Liquid water at 120 kPa enters a 7 kW pump where its pressure is raised to...
A 4-kW pump operating at steady state draws in liquid water at 100 kPa, 15?C with...
A 4-kW pump operating at steady state draws in liquid water at 100 kPa, 15?C with a mass flow rate of 4.5 kg/s and delivers water at 1 MPa pressure. Ignore the kinetic and potential energy changes from inlet to exit. Determine (a) the isentropic efficiency of the pump and (b) whether the power input rating is adequate
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?
0.1 kg/s of saturated liquid water enters an adiabatic reversible pump at 10 kPa and exits...
0.1 kg/s of saturated liquid water enters an adiabatic reversible pump at 10 kPa and exits at 4 MPa. Calculate the input power required by the pump. Select one: O a. 4 kW O b. -4 kJ/kg O c.4kJ
consider a 16-kw pump. if an incompressible liquid is flowing at a rate of 5kg/s with...
consider a 16-kw pump. if an incompressible liquid is flowing at a rate of 5kg/s with a pressure of 100 kPa enters the pump, what is the highest pressure that can be achieved by the fluid at the exit of the pump? you can assume there is no kinetic or potential energy variations in the pump. you can also assume a density of 1000 kg/m^3. state all assumptions used in the solution of the problem
Liquid water flows steadily through a work producing device with a mass flow rate of 100...
Liquid water flows steadily through a work producing device with a mass flow rate of 100 kg/s. At the inlet the conditions are: p1=1000 kPa, T1=25 deg-C, Vel1 = 30 m/s. At the exit, p2=100 kPa, u2= u1 (specific internal energy remains constant), and Vel2 = 20 m/s. Assume no heat transfer, no change in elevation between the inlet and exit, and density of water to be 1000 kg/m3. (a). Determine the power produced (w/o neglecting the effect of change...
Liquid water enters a feedwater heater at inlet 1 with inlet condition ls 15 mpa, 40celcius...
Liquid water enters a
feedwater heater at inlet 1 with inlet condition ls 15 mpa,
40celcius at 60kg/s. Another stream of water in saturated mixture
enters the heater at inlet 2 at temperature of 175 celcius. The
heater operates at steady state and heat transfer to surrounding
can be neglected. At exit 3, saturated liquid flows out at 275 kpa.
Select two different values of mixture quality at inlet 2 between
0.5 and 0.8, and subsequently plot the mass flow...
Air enters a turbine in steady flow at 600 kPa, 740 K, and 120 m/s. The...
Air enters a turbine in steady flow at 600 kPa, 740 K, and 120 m/s. The exit conditions are 100 kPa, 450 K, and 220 m/s. A heat loss of 15 kJ/kg occurs, and the inlet area is 4.91 cm2 . Determine (a) the kinetic-energy change, in kJ/kg, (b) the power output, in kW, and (c) the ratio of the inlet- to outletpipe diameters
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 10...
Water is the working fluid in a Rankine cycle. Superheated vapor enters the turbine at 10 Mpa, 560 C with a mass flow rate of 7.8kg/s and exits at 8 kPa. Saturated liquid enters the pump at 8 kPa. The isentropic turbine efficiency is 85%, and the isentropic pump efficiency is 85%. Cooling water enters the adiabatic condenser at 18 C and exits at 36 C with no significant change in pressure and assuming the specific heat of the cooling...
Question 4 Liquid water enters a feedwater heater at inlet 1 with inlet conditions 15 MPa,...
Question 4 Liquid water enters a feedwater heater at inlet 1 with inlet conditions 15 MPa, 40°C at 60 kg/s. Another stream of water in saturated mixture enters the heater at inlet 2 at temperature of 175 °C. The heater operates at steady state and heat transfer to surrounding can be neglected. At exit 3, saturated liquid flows out at 275 kPa. Select two (2) different values of mixture quality at inlet 2 between 0.5 and 0.8, and subsequently plot...
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...
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?
0.1 kg/s of saturated liquid water enters an adiabatic reversible pump at 10 kPa and exits at 4 MPa. Calculate the input power required by the pump. Select one: O a. 4 kW O b. -4 kJ/kg O c.4kJ
Liquid water enters a
feedwater heater at inlet 1 with inlet condition ls 15 mpa,
40celcius at 60kg/s. Another stream of water in saturated mixture
enters the heater at inlet 2 at temperature of 175 celcius. The
heater operates at steady state and heat transfer to surrounding
can be neglected. At exit 3, saturated liquid flows out at 275 kpa.
Select two different values of mixture quality at inlet 2 between
0.5 and 0.8, and subsequently plot the mass flow...
Question 4 Liquid water enters a feedwater heater at inlet 1 with inlet conditions 15 MPa, 40°C at 60 kg/s. Another stream of water in saturated mixture enters the heater at inlet 2 at temperature of 175 °C. The heater operates at steady state and heat transfer to surrounding can be neglected. At exit 3, saturated liquid flows out at 275 kPa. Select two (2) different values of mixture quality at inlet 2 between 0.5 and 0.8, and subsequently plot...
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