refrigeration
how to interpolate at saturation temperature at condenser outlet?
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4. The following test data were obtained from a R134A vapour-compression refrigeration system Condenser pressure Evaporator...
4. The following test data were obtained from a R134A vapour-compression refrigeration system Condenser pressure Evaporator pressure Temperature at compressor inlet Temperature at compressor outlet Temperature at condenser inlet Temperature at condenser outlet Temperature at expansion valve inlet 30 Temperature at evaporator outlet 0.9 MPa 0.6 MPa 30 C 120 C 110 C 25 C 20 °C During compression, 3.5 kJ/kg was transferred from the fluid. Determine the coefficient of performance and perform an energy balance on the system
3/ A LiBr-H2O absorption cooling system contains of one solution heat exchanger, generator, condense an evaporator,...
3/ A LiBr-H2O absorption cooling system contains of one solution heat exchanger, generator, condense an evaporator, and an absorber. The temperatures of the main components °C at condenser, 10 °C at evaporator, and 30 °C at absorber. The cooling capacity at the evaporator is are 100 °C at generator, 40 100 Ton, and the flow rate of the pump is 34.2 kg/min. And the temperature at outlet of heat exchanger and the inlet to the generator is 52 °C Find...
The system shown in the diagram provides 20tons of refrigeration. The system uses 134-a refrigerant. Using...
The
system shown in the diagram provides 20tons of refrigeration. The
system uses 134-a refrigerant. Using the data indicated on the
diagram.
A) find the minimum work requirement to the compressor
B) compute the coefficient of performance
C) determine the coefficient of performance of a Carnot
refrigerator operating between the temperature limits of this
system
D) show the cycle on a properly labeled T-s diagram with
respect to the saturation lines.
(On the diagram, lets say compressor to the condenser...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and 480°C. condenser inlet pressure is 10 kPa. Some steam is taken from the turbine at a pressure of 0.7 MPa, feeds a Closed Feed water heater and is sent to the condenser as a saturated liquid at a pressure of 0.7 MPa at the outlet. The other outlet (cold) is at a pressure of 10 MPa and a saturation temperature of 0.7 MPa. According...
4. A water chiller provides 100 tons 3.516 kw/ton of refrigeration to cool water to a...
4. A water chiller provides 100 tons 3.516 kw/ton of refrigeration to cool water to a temperature of 12.10 C for an air conditioning system. The heat extracted from the water is to be rejected in a cooling tower at 35.4°C, Assuming that the chiller operates on an ideal vapour refrigeration cycle with the temperature in the evaporator equal to the chilled water temperature and the saturation temperature in the condenser equal to the cooling tower water temperature, determine (a)...
EXAMPLE 6 A household refrigeration system works with a vapor compression refrigeration system with two evaporators...
EXAMPLE 6 A household refrigeration system works with a vapor compression refrigeration system with two evaporators using Refrigerant 134a as the working fluid. This arrangement is used to achieve refrigeration at two different temperatures with a single compressor and a single condenser. The low temperature evaporator operates at -18°C with saturated vapor at its exit and has a refrigerating capacity of 10.5 kW (3 tons). The higher- temperature evaporator produces saturated vapor at 3.2 bar at its exit and has...
refrigeration system is required to supply 20 tons of refrigeration at an evaporator Qi: A cascade enerature of -50...
refrigeration system is required to supply 20 tons of refrigeration at an evaporator Qi: A cascade enerature of -50 °C and a condenser temperature of 40 °C. The load at 50 Cbedby unit using as the refrigerant and is rejected to a cascade condenser at -10 C. This cascade condenser is cooled by R-12 as the refrigerant and operating between -25 °C evaporating temperatures and 40 ec unit using The refrigerant leaving the R-12 condenser is sub-cooled by 5 °C...
Show Complete solutions, Formula used, and direct substitution in solving the problems. Also the ...
Show Complete solutions, Formula used, and direct substitution
in solving the problems. Also the Diagram if not given in the
Problem.
ro n 8-14. If the air leakage into a condenser is 9 cfm of 70 F air at 8-15. How much would the air leaxage increase for the c 8-16. Use the data for t leakag into a condenser is Q sfm 14.7 psia. bow much steam is lost from the condenser if the temperature at the air ou...
A large refrigeration plant is to be maintained at -18 ?C, and it requires refrigeration at...
A large refrigeration plant is to be maintained at -18 ?C, and it requires refrigeration at a rate of 210.0 kW . The condenser of the plant is to be cooled by liquid water, which experiences a temperature rise of 8 ?C as it flows over the coils of the condenser. Assume the plant operates on the ideal vapor-compression cycle using R-134a as the working fluid between the pressure limits of 120 kPa and 700 kPa. a) Determine the mass...
4. The following test data were obtained from a R134A vapour-compression refrigeration system Condenser pressure Evaporator pressure Temperature at compressor inlet Temperature at compressor outlet Temperature at condenser inlet Temperature at condenser outlet Temperature at expansion valve inlet 30 Temperature at evaporator outlet 0.9 MPa 0.6 MPa 30 C 120 C 110 C 25 C 20 °C During compression, 3.5 kJ/kg was transferred from the fluid. Determine the coefficient of performance and perform an energy balance on the system
3/ A LiBr-H2O absorption cooling system contains of one solution heat exchanger, generator, condense an evaporator, and an absorber. The temperatures of the main components °C at condenser, 10 °C at evaporator, and 30 °C at absorber. The cooling capacity at the evaporator is are 100 °C at generator, 40 100 Ton, and the flow rate of the pump is 34.2 kg/min. And the temperature at outlet of heat exchanger and the inlet to the generator is 52 °C Find...
The
system shown in the diagram provides 20tons of refrigeration. The
system uses 134-a refrigerant. Using the data indicated on the
diagram.
A) find the minimum work requirement to the compressor
B) compute the coefficient of performance
C) determine the coefficient of performance of a Carnot
refrigerator operating between the temperature limits of this
system
D) show the cycle on a properly labeled T-s diagram with
respect to the saturation lines.
(On the diagram, lets say compressor to the condenser...
In a regenerative ideal Rankine cycle, hot water steam enters the turbine at 10 MPa and 480°C. condenser inlet pressure is 10 kPa. Some steam is taken from the turbine at a pressure of 0.7 MPa, feeds a Closed Feed water heater and is sent to the condenser as a saturated liquid at a pressure of 0.7 MPa at the outlet. The other outlet (cold) is at a pressure of 10 MPa and a saturation temperature of 0.7 MPa. According...
4. A water chiller provides 100 tons 3.516 kw/ton of refrigeration to cool water to a temperature of 12.10 C for an air conditioning system. The heat extracted from the water is to be rejected in a cooling tower at 35.4°C, Assuming that the chiller operates on an ideal vapour refrigeration cycle with the temperature in the evaporator equal to the chilled water temperature and the saturation temperature in the condenser equal to the cooling tower water temperature, determine (a)...
EXAMPLE 6 A household refrigeration system works with a vapor compression refrigeration system with two evaporators using Refrigerant 134a as the working fluid. This arrangement is used to achieve refrigeration at two different temperatures with a single compressor and a single condenser. The low temperature evaporator operates at -18°C with saturated vapor at its exit and has a refrigerating capacity of 10.5 kW (3 tons). The higher- temperature evaporator produces saturated vapor at 3.2 bar at its exit and has...
refrigeration system is required to supply 20 tons of refrigeration at an evaporator Qi: A cascade enerature of -50 °C and a condenser temperature of 40 °C. The load at 50 Cbedby unit using as the refrigerant and is rejected to a cascade condenser at -10 C. This cascade condenser is cooled by R-12 as the refrigerant and operating between -25 °C evaporating temperatures and 40 ec unit using The refrigerant leaving the R-12 condenser is sub-cooled by 5 °C...
Show Complete solutions, Formula used, and direct substitution
in solving the problems. Also the Diagram if not given in the
Problem.
ro n 8-14. If the air leakage into a condenser is 9 cfm of 70 F air at 8-15. How much would the air leaxage increase for the c 8-16. Use the data for t leakag into a condenser is Q sfm 14.7 psia. bow much steam is lost from the condenser if the temperature at the air ou...
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