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![he = 266.589 kJ /icg 12 Given mi [ni hu] – Cooling load = 10kw mi [ 252-32 – 93.42] = 10 T M = 0.0629 kg/sec Compressas Boweg](http://img.homeworklib.com/questions/1c9d2be0-79ed-11eb-b6bd-917cc77a52d2.png?x-oss-process=image/resize,w_560)
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A 10-kJ/s cooling load is to be served by operating an ideal vapor-compression refrigeration cycle with...
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...
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
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
4. (10 points) An ideal vapor-compression refrigeration cycle is modified to include a counter- f...
4. (10 points) An ideal vapor-compression refrigeration cycle is modified to include a counter- flow heat exchanger, as shown below.Ammonia leaves the evaporator as saturated vapor at 1.0 bar and is heated at constant pressure to S "C before entering the compressor. Following isentropic compression to 18 bar, the refrigerant passes through the condenser, exiting at 40 18 bar. The liquid then passes through the heat exchanger, entering the expansion valve at 18 bar. If the mass flow 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 is the working fluid in an ideal vapor-compression refrigeration cycle. Saturated vapor enters the...
Refrigerant 134a is the working fluid in an ideal vapor-compression
refrigeration cycle. Saturated vapor enters the compressor at h =
400 J/kg and saturated liquid leaves the condenser at h= 242 J/kg.
If the mass flow rate of the refrigerant is 0.08 kg/s, and
superheated vapor exits the compressor at h = 420 J/kg, pression
work will be equal to 1.6 kW
inch-h) 6.08(420 - 6oo) = 1.6
Consider a 300 kJ/min refrigeration system that operates on an ideal vapor-compression refrigerat...
Consider a 300 kJ/min refrigeration system that operates on an ideal vapor-compression refrigeration cycle with R-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 140 kPa and is compressed to 800 kPa. Show the cycle on a T-s diagram with respect to saturation lines and determine (a) the quality of the refrigerant at the end of the throttling process, (b) coefficient of performance, (c) the power input to the compressor , (d) Generation of entropy...
An ideal vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid....
An ideal vapor-compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 1.25 bar, and saturated liquid exits the condenser at 5 bar. The mass flow rate of refrigerant is 8.5 kg/min. A. Determine the magnitude of the compressor power input required, in kW (report as a positive number). B. Determine the refrigerating capacity, in tons. C. Determine the coefficient of performance. Please answer all parts of the question. Thanks!
Problem #1 [30 Points] Vapor Compression Refrigeration Cycle An ideal vapor compression refrigeration system cycle, with...
Problem #1 [30 Points] Vapor Compression Refrigeration Cycle An ideal vapor compression refrigeration system cycle, with ammonia as the working fluid, has an evaporator temperature of -20°C and a condenser pressure of 12 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The mass flow rate of refrigerant is 3 kg/minute. Determine the coefficient of performance and the refrigerating capacity in tons. Given: Find: T-s Process Diagram: Schematic Assume:
An ideal vapor compression refrigeration cycle uses refrigerant 12 as a working fluid in an air...
An ideal vapor compression refrigeration cycle uses refrigerant 12 as a working fluid in an air conditioning system. The refrigerant enter the compressor as saturated vapor at 5oC and leaves the condenser as saturated liquid at 55oC. The mass flow rate of refrigerant is 0.7 kg/s. Heat is transferred from a reservoir at 15oC (the cool space) to the refrigerant in the evaporator and the heat rejected by the condenser is transferred to the environment which is at a temperature...
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...
4. (10 points) An ideal vapor-compression refrigeration cycle is modified to include a counter- flow heat exchanger, as shown below.Ammonia leaves the evaporator as saturated vapor at 1.0 bar and is heated at constant pressure to S "C before entering the compressor. Following isentropic compression to 18 bar, the refrigerant passes through the condenser, exiting at 40 18 bar. The liquid then passes through the heat exchanger, entering the expansion valve at 18 bar. If the mass flow 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 is the working fluid in an ideal vapor-compression
refrigeration cycle. Saturated vapor enters the compressor at h =
400 J/kg and saturated liquid leaves the condenser at h= 242 J/kg.
If the mass flow rate of the refrigerant is 0.08 kg/s, and
superheated vapor exits the compressor at h = 420 J/kg, pression
work will be equal to 1.6 kW
inch-h) 6.08(420 - 6oo) = 1.6
Consider a 300 kJ/min refrigeration system that operates on an ideal vapor-compression refrigeration cycle with R-134a as the working fluid. The refrigerant enters the compressor as saturated vapor at 140 kPa and is compressed to 800 kPa. Show the cycle on a T-s diagram with respect to saturation lines and determine (a) the quality of the refrigerant at the end of the throttling process, (b) coefficient of performance, (c) the power input to the compressor , (d) Generation of entropy...
Problem #1 [30 Points] Vapor Compression Refrigeration Cycle An ideal vapor compression refrigeration system cycle, with ammonia as the working fluid, has an evaporator temperature of -20°C and a condenser pressure of 12 bar. Saturated vapor enters the compressor, and saturated liquid exits the condenser. The mass flow rate of refrigerant is 3 kg/minute. Determine the coefficient of performance and the refrigerating capacity in tons. Given: Find: T-s Process Diagram: Schematic Assume:
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