Pure air is the refrigerant in the air refrigeration cycle, and it is used in direct contact with the area of refrigeration.. The condensers in Expansion refrigeration utilise refrigerants?

Remove heat from a substance and chill it to or below its real temperature through the process of refrigeration. It is expressed in terms of a ton of refrigeration for the refrigeration unit (TR)?

Remove heat from a substance and chill it to a temperature that is lower than the actual temperature by refrigerating it. A ton of refrigeration is the unit of measurement for a refrigeration unit (TR)?

Temperature, pressure, and volume of the refrigerant all have a role in the Natural Refrigeration process, hence it cannot be accurately anticipated?