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The gas refrigeration cycle is preferred in aircraft refrigeration because of:


1. high weight per ton
2. low cost
3. low weight per ton
4. high COP

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Correct Answer - Option 3 : low weight per ton

Explanation:

A gas refrigeration cycle is used in aircraft refrigeration system and the cycle is also called air refrigeration cycle.
The air cycle is favorale for aircraft refrigeration system because:

  • Aircrafts have high cooling loads because of large occupancy, electronic equipment and high velocity and consequently high heat generation due to skin friction.
  • The power per tonne of refrigeration is higher than VCRS system.
  • The weight per tonne of refrigeration is low due to low density of air and space and volume required is less.
  • Small amount of leakage are tolerable with air as the refrigerant.
  • Avialibilty of the refrigerant in mid air.
  • Cabin pressurization and airconditioning can be combined into one operation.

In aircraft weight is the primary concern. So for aircrafts a refrigeration system which can provide more cooling with low weight is required. That’s why in aircraft the gas refrigeration systems are employed.

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