Consider a refrigerator that operates on the vapor compression refrigeration cycle with R-134 a as the working fluid. The refrigerant enters the compressor as saturated vapor at 160 kPa, and exits at 800 kPa and 50^∘ C, and leaves the condenser as saturated liquid at 800 kPa. The coefficient of performance of this refrigerator is (a) 2.6 (b) 1.0 (c) 4.2 (d) 3.2 (e) 4.4 | Numerade

A standard vapor compression refrigeration cycle operates betwe... | Filo

Magic Marks on LinkedIn: Vapor Compression System Explained | Refrigeration & Air Conditioning

A R-12 refrigerating machine works on vapour-compression cycle. The temperature of refrigerant in the evaporator is -20^∘ C. The vapour is dry saturated when it enters the compressor and leaves it in a superheated condition. The condenser temperature is 30^∘ C. Assuming specific heat at constant pressure for R-12 in the superheated condition as 1,884  kJ / kg . K, determine: (a) condition of vapour at the entrance to the condenser: (b) condition of vapour at the entrance to the evaporator; and (

SOLVED: An ice-making machine operates on the ideal vapor-compression cycle using R-134a. The refrigerant enters the compressor as a saturated vapor at 1.3272 bar and leaves the condenser as a saturated liquid at 7.7 bar. Water enters the ice machine at 15°C and leaves as ice at -5°C. For an ice production rate of 8 kg/h, determine the power input to the ice maker (384 kJ of heat needs to be removed from each kg of water at 15°C to turn it into ice at -5°C).Ans: 0.22 kW

(b) A Freon-22 vapour compression system operates between conde... | Filo

A 10-k W cooling load is to be served by operating an ideal vapor-compression refrigeration cycle with its evaporator at 400 kPa and its condenser at 800 kPa. Calculate the refrigerant mass flow rate and the compressor power requirement when refrigerant- 134 a is used. | Numerade

A vapor-compression refrigeration cycle with Refrigerant 134a as the working fluid operates with an evaporator temperature of 50°F and a condenser pressure of 180 lbf/in².Saturated vapor enters the compressor. Refrigerant enters the condenser at 140°F and exits as saturated liquid. The cycle has a refrigeration capacity of 5 tons. Determine:- the refrigerant mass flow rate, in lb/min.- the compressor isentropic efficiency.- the compressor power, in horsepower.- the coefficient of performance.Ans

The eapacity of a propane vapor-compression refrigeration system is 5 toms Saturated vapor at 0^' F enters the compressor, and superheated vapor leaves at 120^∘ F, 180 Totlin. " Heat transfet from the compressor to its surroundingu occurs at a rate of 3.5 Bu per th of refrigeramt passing through the compressor. Liquid refrigerant enters the expansion valve at 85^∘ F, 180 Jb fin^2 ^2 The condenser is water-cooted. wilh warer cutcring it 65%F ind teaving it 80'F with a negligible change in prescur