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5) A heat pump that operates on the ideal vapar-compression cycle...
QUESTION 3 A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is...
QUESTION 3 A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat water from 15°C to 45°C at a rate of 0.12 kg/s. the condenser and evaporator pressures are 1.4 and 0.32 MPa, respectively Determine: (a) The power input to the heat pump
QUESTION 3 A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat water from 15°C to 45°C at a rate of 0.12 kg/s....
A heat pump operates on the ideal vapor compression refrigeration cycle with R-134a. The condenser pressure...
A heat pump operates on the ideal vapor compression refrigeration cycle with R-134a. The condenser pressure is 1.2 MPa and the specific enthalpy at the inlet to condenser is 279 kJ/kg. If the mass flow rate of the refrigerant is 0.193 kg/s, the rate of heat supply to the heated space is answer is 31.1 kw
A refrigerator operates on an ideal vapor compression refrigeration cycle with R-134a as the working fluid....
A refrigerator operates on an ideal vapor compression refrigeration cycle with R-134a as the working fluid. The evaporator pressure is 0.12 MPa and the condenser pressure is 0.8 MPa. If the rate of heat removal from the refrigerated space is 32 kJ/s, the mass flow rate of refrigerant is
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as...
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as shown. Refrigerant 134a leaves the evaporator as saturated vapor at 0.10 MPa and is heated at constant pressure to 20°C before entering the compressor. Following isentropic compression to 1.4 MPa, the refrigerant passes through the condenser and exits at 45°C and 1.4 MPa. The liquid then passes through the heat exchanger and enters the expansion valve at 1.4 MPa. The mass flow rate of...
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle....
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.019 kg/s. The (actual) refrigerator has a compressor with an isentropic efficiency of 85%. The refrigerant enters the compressor slightly superheated by 56 C hint add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.9°C. What is the rate of...
An ideal vapor-compression refrigerant cycle operates at steady state with Refrigerant 134a as the working fluid....
An ideal vapor-compression refrigerant cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at -10°C, and saturated liquid leaves the condenser at 28°C. The mass flow rate of refrigerant is 5 kg/min. Determine (a) The compressor power, in kW (b) The refrigerating capacity, in tons. (c) The coefficient of performance. Sketch the system on a T-s diagram with full label. A vapor-compression heat pump with a heating capacity of 500 kJ/min is...
Tt (12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression...
Tt
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.015 kg/s. The actual) refrigerator has a compressor with an isentropic efficiency of 82%. The refrigerant enters the compressor slightly superheated by 6.2°C (hint: add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.8°C. What is the rate of...
In a heat pump operating according to the vapor compression refrigeration cycle, the refrigerant is R-134a....
In a heat pump operating according to the vapor compression refrigeration cycle, the refrigerant is R-134a. A water source of 11 °C is used to heat a house with a heating load of 17 kW. Refrigerant enters the compressor as saturated steam at 100 kPa pressure and rises at 1.6 MPa, 60 ° C. The temperature of the refrigerant at the outlet of the condenser is 30°C. a) The amount of heat at the beginning of the water, b) Compressor...
Refrigerant 134a flows through an ideal vapor compression heat pump system with a heating capacity of...
Refrigerant 134a flows through an ideal vapor compression heat pump system with a heating capacity of 60,000 Btu/hr. The condenser operates at 200 psi, and the evaporator temperature is 0°F. The refrigerant is a saturated vapor at the evaporator exit and a saturated liquid at the condenser exit. The temperature at the compressor exit is 180°F. Assuming the compressor is not 100% isentropic, determine: a) Mass flow rate (lbm/min) b) Compressor power (hp) c) Isentropic compressor efficiency d) Coefficient of...
QUESTION 3 A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat water from 15°C to 45°C at a rate of 0.12 kg/s. the condenser and evaporator pressures are 1.4 and 0.32 MPa, respectively Determine: (a) The power input to the heat pump
QUESTION 3 A heat pump that operates on the ideal vapor compression cycle with refrigerant-134a is used to heat water from 15°C to 45°C at a rate of 0.12 kg/s....
Condenser Compressor An ideal vapor-compression refrigeration cycle is modified to include a counter-flow heat exchanger as shown. Refrigerant 134a leaves the evaporator as saturated vapor at 0.10 MPa and is heated at constant pressure to 20°C before entering the compressor. Following isentropic compression to 1.4 MPa, the refrigerant passes through the condenser and exits at 45°C and 1.4 MPa. The liquid then passes through the heat exchanger and enters the expansion valve at 1.4 MPa. The mass flow rate of...
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.019 kg/s. The (actual) refrigerator has a compressor with an isentropic efficiency of 85%. The refrigerant enters the compressor slightly superheated by 56 C hint add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.9°C. What is the rate of...
An ideal vapor-compression refrigerant cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at -10°C, and saturated liquid leaves the condenser at 28°C. The mass flow rate of refrigerant is 5 kg/min. Determine (a) The compressor power, in kW (b) The refrigerating capacity, in tons. (c) The coefficient of performance. Sketch the system on a T-s diagram with full label. A vapor-compression heat pump with a heating capacity of 500 kJ/min is...
Tt
(12 points) A refrigerator using refrigerant-134a as the working fluid operates on the vapor compression cycle. The cycle operates between 200 kPa and 1.2 MPa. The refrigerant flows through the cycle at a rate of 0.015 kg/s. The actual) refrigerator has a compressor with an isentropic efficiency of 82%. The refrigerant enters the compressor slightly superheated by 6.2°C (hint: add this to the saturation temperature). The refrigerant leaves the condenser slightly subcooled by 1.8°C. What is the rate of...
In a heat pump operating according to the vapor compression refrigeration cycle, the refrigerant is R-134a. A water source of 11 °C is used to heat a house with a heating load of 17 kW. Refrigerant enters the compressor as saturated steam at 100 kPa pressure and rises at 1.6 MPa, 60 ° C. The temperature of the refrigerant at the outlet of the condenser is 30°C. a) The amount of heat at the beginning of the water, b) Compressor...
Refrigerant 134a flows through an ideal vapor compression heat pump system with a heating capacity of 60,000 Btu/hr. The condenser operates at 200 psi, and the evaporator temperature is 0°F. The refrigerant is a saturated vapor at the evaporator exit and a saturated liquid at the condenser exit. The temperature at the compressor exit is 180°F. Assuming the compressor is not 100% isentropic, determine: a) Mass flow rate (lbm/min) b) Compressor power (hp) c) Isentropic compressor efficiency d) Coefficient of...
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