R-22 is a m an-made refrigerant developed for refrigeration installations that need a low evaporating temperature. One application is in fast freezing unit which maintain a temperature of -200F to -400F (-29 to -400C). It has also been successfully used in air conditioning units and in house hold refrigerators. It is used with both reciprocating and centrifugal compressors.
R-22 has a boiling point of -41 degree F at atmosphere pressure. it is stable and in nontoxic non corrosive nonirritating and nonflammable. The evaporator pressure of R-22 is 43 psi or 28 psi (1.96 kg/cm2) at d degree F. The cylinder code color is green.
The principal advantage of Refrigerant - 22 over Refrigerant -12 is the smaller compressor displacement required. It is about 60% more than that of Refrigerant -12 for a given compressor displacement. The cylinder code color is green.
More by this Author
The vapor absorption system differs from the compression system in a way that it uses heat energy instead of mechanical energy to make a change in the conditions necessary to complete the refrigeration cycle. The heat...
The most popular type of refrigerator which employs vapor absorption system is the electrolux refrigerator. It works on three fluid absorption system. A three fluid system employs a refrigerant, a solvent and an inert...
The means through which data is transformed from one place to another is called transmission or communication media. There are two categories of transmission media used in computer communications. BOUNDED/GUIDED...
No comments yet.