Question
Download Solution PDFWhich of the following is a secondary refrigerant, when used above 0°C?
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFExplanation:
There are two types of refrigerants
- Primary Refrigerant: Primary refrigerants are substances that undergo a cyclic process and produce lower temperatures. There is a latent heat transformation for the refrigerants. For e.g. R-11, R-12, R-22, R-134a, R-1150 etc.
- Secondary Refrigerants: There are working substances that are first cooled by primary refrigerants and then used for cooling at desired places. e.g.H2O, Brine.
Additional Information
- R-11 – Large central air conditioning plant
- R-12- Domestic refrigerator, water cooler etc.
- R-22- Window AC
- NH3- Cold storage or Icing plants
- CO2- Transportation of dry ice
- Air- Air-craft refrigeration system
- Brine- Milk-chilling plants
Mistake Points
Both water and Brine are secondary refrigerants, but here he asks above the 0°C, so water will be the correct answer.
Last updated on May 28, 2025
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