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QV An absorption system use LiBr-H2O solution. The system consists of two he exchangers (refrigerant heat exchanger...
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...
5/An ammonia refrigeration system consists of two stages compressors, two cvaporators, flash intereooler and sub-cooler, heat...
5/An ammonia refrigeration system consists of two stages compressors, two cvaporators, flash intereooler and sub-cooler, heat exchanger and condenser. Ammonia vapor condenses in the condenser at 40 "C. The amount of liquid refrigerant goes to the low temperature evaporator is sub-cooled 10 °C in the liquid sub- cooler and another 10 °C in the liquid-vapor heat exchanger. Vapor leaves the low pressure evaporator saturated at -30 °C, and then it is superheated in the heat exchanger at the same pressure....
The temperature of the condenser in the absorption system shown in Figure 1 drops down to...
The temperature of the condenser in the absorption system shown
in Figure 1 drops down to 34°C. Determine the concentration and
enthalpy of the solution at point 4 and comment on the results
obtained. Assume that all other temperatures are unchanged. (6
marks)
(5) Water vapor Dots Qe a Condenser Generator 95 °C 40 °C To L Heat exchanger t o Water vapor LiBr solution water vapor Absorber 30 °C Evaporator 10°C m = 0.65 kg/s Figure 1. A single-stage...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as s...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as saturated vapor at -15°(State 1). It then goes through a reversible adiabatic compressor to reach State 2. After flowing through the condenser (a heat exchanger), the refrigerant exits as saturated liquid at 70°C (State 3). It is then throttled by going through an expansion valve, to reach State 4. It finishes the cycle by going through another heat exchanger (the evaporator), to return to State 1....
The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat...
The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers hy through h6 in the space provided below, and show all your work on your paper. · At...
Determine the COP of the gas refrigeration system shown below. The system consists of two ideal...
Determine the COP of the gas refrigeration system shown below. The system consists of two ideal compressors (C1 and C2 two ideal turbines (T1 and T21 and four heat exchangers (HX-1, HX-2, HX-3, and HX-4). Air is the gas of the refrigeration system. Heat is relected from air to the surroundings as it moves through HDX-1 and HX-2. Heat is accepted by air from the cooled spaces as it moves through HX-3 and HX-4. The temperatures and pressures at several...
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...
5/An ammonia refrigeration system consists of two stages compressors, two cvaporators, flash intereooler and sub-cooler, heat exchanger and condenser. Ammonia vapor condenses in the condenser at 40 "C. The amount of liquid refrigerant goes to the low temperature evaporator is sub-cooled 10 °C in the liquid sub- cooler and another 10 °C in the liquid-vapor heat exchanger. Vapor leaves the low pressure evaporator saturated at -30 °C, and then it is superheated in the heat exchanger at the same pressure....
The temperature of the condenser in the absorption system shown
in Figure 1 drops down to 34°C. Determine the concentration and
enthalpy of the solution at point 4 and comment on the results
obtained. Assume that all other temperatures are unchanged. (6
marks)
(5) Water vapor Dots Qe a Condenser Generator 95 °C 40 °C To L Heat exchanger t o Water vapor LiBr solution water vapor Absorber 30 °C Evaporator 10°C m = 0.65 kg/s Figure 1. A single-stage...
A Refrigeration System Using R-134A In a refrigeration system, the refrigerant R-134A begins as saturated vapor at -15°(State 1). It then goes through a reversible adiabatic compressor to reach State 2. After flowing through the condenser (a heat exchanger), the refrigerant exits as saturated liquid at 70°C (State 3). It is then throttled by going through an expansion valve, to reach State 4. It finishes the cycle by going through another heat exchanger (the evaporator), to return to State 1....
The heat-pump system shown is designed to provide water-heating and space-cooling. The system includes a heat exchanger to subcool the R134a refrigerant at the outlet of the water heater while heating the refrigerant at the outlet of the evaporator. Given the following data, determine the enthalpy at each station, 1 through 6, using the R134a property tables (click here). Type your answers hy through h6 in the space provided below, and show all your work on your paper. · At...
Determine the COP of the gas refrigeration system shown below. The system consists of two ideal compressors (C1 and C2 two ideal turbines (T1 and T21 and four heat exchangers (HX-1, HX-2, HX-3, and HX-4). Air is the gas of the refrigeration system. Heat is relected from air to the surroundings as it moves through HDX-1 and HX-2. Heat is accepted by air from the cooled spaces as it moves through HX-3 and HX-4. The temperatures and pressures at several...
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