Refrigerant Solutions for Air-Conditioning and Refrigeration Applications

Increased awareness about global warming and the reduction of greenhouse gases is of global importance. In an attempt to comply with the Montreal protocol, refrigeration and air-conditioning manufacturers in many Asian countries are planning to phase-out ozone-depleting, chlorine-based refrigerants in the near future. Common hydrochlorofluorocarbon (HCFC) refrigerants like R-22 will have to shift to hydrofluorocarbon (HFC) refrigerants like R-410A for air conditioning and R-404A for refrigeration to prevent further ozone-depletion. Emerson Climate Technologies is helping customers go through this phase by switching to these new and more environmentally friendly refrigerants right now.

Global warming is a result of greenhouse gases like carbon dioxide produced by the combustion of fossil fuels in electrical generation and transportation. Air conditioning and refrigeration systems consume energy which if utilized inefficiently, will result in higher carbon dioxide production.

Due to the high Global Warming Potential (GWP) of these refrigerants, more people are looking at alternate refrigerants with lower GWP. One such refrigerant is R-32 (HFC), which is also being recognized and being studied by the air-conditioning industry.

The Montreal Protocol has been the driving force behind this global effort. As a result, production and consumption of entire groups of harmful ozone-depleting chemicals have been successfully phased out in developed countries. The same process is also well under way in the developing regions. The handbook on the Montreal Protocol on Substances that Deplete the Ozone Layer, published in 1991, has proved to be an invaluable reference source and is available in the UNEP website. A copy of the handbook can also be downloaded from this site.