Vapour compression
Vapour absorption
Carnot cycle
Electrolux refrigerator
Ammonia
Carbon dioxide
Sulphur dioxide
R-12
High sensible heat
High total heat
High latent heat
Low latent heat
11
7.5
0.091
-11
The standard unit used in refrigeration problems
The cooling effect produced by melting 1 ton of ice
The refrigeration effect to freeze 1 ton of water at 0 degree C into ice at 0 degree C in 24
The mass of refrigerant gas required to produce 1 ton of ice in 24 hours