What are the most widely used refrigerants ?

The most widely used refrigerants till recently were a group of halogenated hydrocarbons, marketed under various proprietary names of Freon, Genetron, Arcton, Isotron,. Frigen etc. These are either methane -based or ethane - based where the hydrogen atoms are replaced by fluorine and chlorine atoms.

Some of the refrigerant names and their compounds

R-12 ( C-Cl2-F2)

R-22 ( CH-Cl-F2)

R-50 ( CH4 )

R-10 ( C-Cl4 )

R-110 ( C2-Cl6 )

R-113 ( C2-Cl3-F3 )

R- 142 ( C2-H3-Cl-F2 )

Other fluids are used as refrigerants are Sulphur dioxide, methyl chloride, ethyl chloride, hydrocarbons like propane, butane , ethane, ethylene, etc., carbon dioxide , air and water.

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Mechinopedia For Mechanical Engineers

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