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R22 replacement status.

Author(s) : CALM J. M., DOMANSKI P. A.

Type of article: Article

Summary

Since its initial recognition in 1928 and commercialization in 1936, R22 has been applied in systems ranging from the smallest window air conditioners to the largest chillers and heat pumps, including those for district cooling and heating. Individual equipment using this versatile refrigerant ranges from 2 kW to 33 MW (0.5 to 9,500 tons) in cooling capacity. R22 use includes equipment with rotary-rolling-piston, reciprocating- piston, scroll, screw, and centrifugal compressors and, experimentally, absorption cycles. No other refrigerant has achieved such a wide range of commercial capacities or applications. However, R22 is one of a class of chemicals, hydrochlorofluorocarbons (HCFCs), being phased out for environmental protection pursuant to an international agreement, the Montreal Protocol on Substances that Deplete the Ozone Layer. The Protocol's control measures address "consumption," defined as production plus imports minus both exports and qualifying amounts destroyed.

Details

  • Original title: R22 replacement status.
  • Record ID : 2005-0054
  • Languages: English
  • Subject: Regulation
  • Source: ASHRAE Journal - vol. 46 - n. 8
  • Publication date: 2004/08

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