In a refrigeration system, why are expansion devices located closer to the evaporator?

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SSC JE ME Previous Paper 8 (Held on: 27 October 2020 Evening)
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  1. To avoid the flow of the refrigerant
  2. To minimise the heat gain
  3. To ease the flow of the refrigerant
  4. To maximise the heat gain

Answer (Detailed Solution Below)

Option 2 : To minimise the heat gain
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Explanation:

Refrigeration system:

A refrigeration system contains a minimum of four key components i.e., compressor, condenser, expansion valve, and evaporator.

Expansion device:

  • The purpose of the expansion device is to rapidly reduce the pressure of the refrigerant in the refrigeration cycle.
  • This allows the refrigerant to rapidly cool before entering the evaporator.
  • Expansion device located closer to the evaporator in order to minimize the heat gain.
  • The most common devices are capillary tube, thermal expansion valve, electronic expansion valve

F1 Sumit T.T.P Deepak 23.01.2020 D 1

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