In a vapour compression refrigerator, the heat rejected in condenser i – McqOptions

MCQOPTIONS

1.	In a vapour compression refrigerator, the heat rejected in condenser is 1500 kJ/kg of refrigerant flow and the work done by compressor is 250 kJ/kg. The COP of the refrigerator is:
A.	5
B.	6
C.	7
D.	8
Answer» B. 6

Discussion

No Comment Found

Related MCQs

A thermoelectric refrigeration system requires
COP of vapor compression refrigeration system increases with
A refrigerator operates on a reverse Carnot Cycle between 900 K and 300 K. If heat at the rate of 3 kJ/s is extracted from the low-temperature space, then the power required to drive the refrigerator
Heat is absorbed by a refrigerant during a refrigeration cycle in a-
A house-hold refrigerator works on
It is proposed to use a heat pump to heat a home in a cold winter, when the surrounding temperature is -23°C to maintain the room at +22°C. If the power rating of the heat pump is 5 kW, the maximum heat transfer rate that can be provided to the home is
In vapour compression cycle, the refrigerant exists in a superheated vapour state _____.
An inventor claims to have developed a refrigeration unit which maintains – 10°C in the refrigerator which is kept in a room where the surrounding temperature is 25°C and which has COP 8.5. His claim is
A refrigerator is operating on ideal vapour compression cycle with R134a as working fluid atflow rate of 0.1 kg/s Data given are:Enthalpy at the inlet of the compressor = 240 kJ/kgEnthalpy at the outlet of the compressor = 280 kJ/kgEnthalpy at the outlet of the condenser = 100 kJ/kgWhat will be the refrigeration capacity and COP of the refrigerator, respectively?
Determine the COP (coefficient of performance) of a heat pump if the rate of heat rejected is 360 kJ/min and power supplied is 2 kW.