The sub-cooling in a refrigeration cycle

A. Does not alter C.O.P.

B. Increases C.O.P.

C. Decreases C.O.P.

D. None of these

Related Questions

  1. A reversible engine has ideal thermal efficiency of 30%. When it is used as a refrigerating machine…
  2. The refrigerant widely used in domestic refrigerators is
  3. In order to collect liquid refrigerant and to prevent it from going to a ________, a device known as…
  4. Moisture in Freon refrigeration system causes
  5. The process, generally used in summer air conditioning to cool and dehumidify the air, is called
  6. The index which correlates the combined effects of air temperature, relative humidity and air velocity…
  7. The horizontal and non-uniformly spaced lines on a psychrometric chart indicates
  8. Cooling water is required for following equipment in ammonia absorption plant
  9. The process, generally used in winter air-conditioning to warm and humidity the air, is called
  10. The air cooling system mostly used in transport type aircrafts is
  11. Refrigeration in aeroplanes usually employs the following refrigerant
  12. In a psychrometric chart, specific humidity (moisture content) lines are
  13. In vapour compression cycle the condition of refrigerant is superheated vapour
  14. The alignment circle is marked on the psychrometric chart at
  15. In a domestic vapour compression refrigerator, the refrigerant commonly used is
  16. Domestic refrigerator working on vapour compression cycle uses the following type of expansion device
  17. The vapour compression refrigerator employs the following cycle
  18. The heat rejection factor (HRF) is given by
  19. The conditioned air supplied to the room must have the capacity to take up
  20. The sub-cooling in a refrigeration cycle
  21. For ammonia refrigerating systems, the tubes of a shell and tube condenser are made of
  22. During adiabatic saturation process on unsaturated air __________ remains constant.
  23. The leakage in a refrigeration system using Freon is detected by
  24. In a vapour compression refrigeration system, a throttle valve is used in place of an expander because
  25. Pressure of water vapour is given by
  26. The vapour pressure of refrigerant should be
  27. A condenser of refrigeration system rejects heat at the rate of 120 kW, while its compressor consumes…
  28. Which of the following refrigerants has lowest freezing point?
  29. The C.O.P. of a refrigerator working on a reversed Carnot cycle is (where T₁ = Lowest absolute…
  30. The C.O.P. of a Carnot refrigerator in winter will be _________ as compared to C.O.P. in summer.

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