Calcium chloride (CaCl2) is used only in commercial refrigeration plants. Calcium chloride is used as a simple carrying medium for refrigeration. Brine systems are used…
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Carbon dioxide (CO2) is a colorless gas at ordinary temperatures. It has a slight odor and an acid taste. Carbon dioxide is nonexplosive and nonflammable.…
Ammonia (NH3) is used most frequently in large industrial plants. Freezers for packing houses usually employ ammonia as a refrigerant. It is a gas with…
Methyl chloride (CHP) has a boiling point of ?10.6°F (?23.3°C). It also has heat of vaporization at boiling point (at l atm) of 177.8 Btu/lb.…
Sulfur dioxide (SO2) is a colorless gas or liquid. It is toxic, with a very pungent odor. When sulfur is burned in air, sulfur dioxide…
Refrigerants are classified according to their manner of absorption or extraction of heat from substances to be refrigerated. The classifications can be broken down into…
Refrigerants are used in the process of refrigeration. Refrigeration is a process whereby heat is removed from a substance or a space. A refrigerant is…
Refrigeration machines are rated in tons of refrigeration. This rating indicates the size and ability to produce cooling energy in a given period. One ton…
A substance changes state when the inherent amount of heat is varied. Ice is water in a solid state and steam is a vapor state…
The perspiration on your body evaporates and cools your body. Water kept in a porous container is cooled on a hot day. The water seeps…