Solved A vapor-compression refrigeration system for a - Chegg
A vapor-compression refrigeration system for a household refrigerator has a refrigerating capacity of 900 Btu/h. Refrigerant enters the evaporator at -10°F and exits at 20°F. The isentropic compressor efficiency is 75%. The refrigerant condenses at 140°F and exits the condenser subcooled at 100°F.
Solved Problem 4-1. A refrigerator operates on the ideal - Chegg
A refrigerator operates on the ideal vapor-compression refrigeration cycle and uses Refrigerant-1 3 4 a as the working fluid. The condenser operates at a pressure of \ ( 4 0 0 \ mathrm {lbf} / \ mathrm {in} ^ {2} \) and the evaporator at a temperature of \ ( 2 5 ^ {\ circ} \ mathrm {F} \).
Solved A vapor compression refrigeration system uses R-134a
A vapor compression refrigeration system uses R-134a and operates between 20 psi and 140 psi. Saturated vapor enters the compressor and saturated liquid leaves the condenser. The condenser rejects heat at a rate of 14.2Btus and the compressor has an isentropic efficiency of 80%.Find:a. Refrigerant temperature at the compressor outletb.
Solved In a vapor-compression refrigeration cycle ammonia - Chegg
In a vapor-compression refrigeration cycle ammonia exits the evaporator as saturated vaporat-22°C. The refrigerant enters the condenserat 16 bar and 160°C, and saturated liquid exts at 16 bar. There is no significant heat transfer between the compressor and its surroundings, and the refrigerant passes through the evaporator with a negligible ...
Solved An ideal vapor-compression refrigeration cycle that - Chegg
An ideal vapor-compression refrigeration cycle that uses refrigerant-134a as its working fluid maintains a condenser at 800 kPa and an evaporator at -20°C. Determine this system’s COP and the amount of power required to service a 150 kW cooling load. (Take the required values from saturated refrigerant-134a tables.)
Solved A vapor compression refrigeration cycle operates at - Chegg
A vapor compression refrigeration cycle operates at steady state with Refrigerant 134a as the working fluid. Saturated vapor enters the compressor at 2 bar, and saturated liquid exits the condenser at 8 bar. The isentropic compressor efficiency is 80 %. The mass flow rate of refrigerant is 7 kg/min. Determine The compressor power, in kW.
Solved A vapor compression refrigeration cycle operates with
A vapor compression refrigeration cycle operates with refrigerant R-134a as the working fluid. Saturated vapor enters the compressor at 200 kPa, while saturated liquid leaves the condenser at 800 kPa. The compressor has an isentropic efficiency of 0.8, and the mass flow rate of refrigerant is 0.12 kg/s. Fill in the property table below and ...
Solved A vapor-compression refrigeration system uses the - Chegg
A vapor-compression refrigeration system uses the arrangement shown in Fig. 10.10 (a flash chamber and two-stage compression with intercooling between the stages). Inside the flash chamber, the liquid and vapor components separate into two streams. Refrigerant 134a is the working fluid. Saturated vapor at –28°C enters the first compressor stage.
Solved A refrigerator operates on the ideal | Chegg.com
Question: A refrigerator operates on the ideal vapor-compression refrigeration cycle and uses refrigerant-134a as the working fluid. The condenser operates at 2 MPa and the evaporator at -6°C. If an adiabatic, reversible expansion device were available and used to expand the liquid leaving the condenser, how much would the COP improve by using ...
Solved An ideal vapor compression refrigeration cycle using - Chegg
An ideal vapor compression refrigeration cycle using R‐134a operates with an evaporating temperatureof 0 F and condensing temperature 60 F. The refrigerant leaves the evaporator as a saturated vapor andleaves the condenser as a saturated liquid.a. Draw a schematic diagram labeling the 4 components of the cycle.b.