A domestic refrigerator works on the:

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SSC JE ME Previous Paper 9 (Held on: 27 Sep 2019 Evening)
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  1. air refrigeration cycle
  2. Vapour compression refrigeration cycle
  3. Steam jet refrigeration cycle
  4. Vapour absorption refrigeration cycle

Answer (Detailed Solution Below)

Option 2 : Vapour compression refrigeration cycle
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Explanation:

Vapour Compression Cycle

The vapour-compression cycle is a process used to extract heat from a box or a room that underlies most refrigeration and air conditioning techniques. It consists of four separate stages:

  • Compression(1-2)
  • Condensation(2-3)
  • Expansion(3-4)
  • Evaporation (4-1)

And in the domestic refrigerator, the purpose is to extract the heat from the refrigerator hence it follows the vapour compression cycle

a) Basic vapour compression b) T-s diagram c) p-h diagram

refrigeration system

*Trick to remember –Most of you will get confused that whether it works on vapour compression cycle or the vapour absorption cycle. So here is a simple trick to remember. You might have noticed a compressor installed at the back of our domestic refrigerator that’s it because the cycle on which it works is vapour compression cycle.

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