Evaporator and condenser
The same is true of refrigerants and that is why the major work of heat exchange in mechanical cooling is done by modifying the state of the refrigerant in the two coils.
Refrigerant changes from liquid to gas in the evaporator, where the heat is absorbed from the air in the room. Similarly refrigerant changes from a gas back to a liquid in heat exchanger of the condenser, where heat is rejected outdoors.
The graph shows that the heat was added 32F water, he first went on the basis of a reasonable process of heating, concealed heating process. If we could capture 212CF steam and continue to add heat, we would have seen him go through another sensible heating process called overheating, as shown by the dashed line. This alternation of thermal processes (reasonable-latent-wise) is valid for all liquids. Sensible heat transfer processes occur in a fluid or gas States, while latent processes occur between States. Why sensible heating of the technological line so cool, steam is that it takes much less heat, change 1 pound (1 pairs F than for water.
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Refrigeration 
