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Why R-32 May Be the Refrigerant of the Future
2017/01/10
Jan 09, 2017
In the late 1980s, those of us of a certain age became familiar with an international agreement called the Montreal Protocol. The goal of this agreement was the phaseout of ozone-depleting chlorofluorocarbon (CFC) refrigerants. Then, in 1999, Title VI of the U.S. Clean Air Act was modified to phase out high global-warming hydrofluorocarbon (HFC) refrigerants. Now, once again, the fix has been deemed inadequate, and we are being asked to jump into a new generation of refrigerants.

In the past, each generation of refrigerants was considered to be the optimum one to use.
 
From todays’ perspective, what would the ideal/dream refrigerant be? It would be a safe compound (or blend of compounds) with no toxicity or zero flammability risk. It would have no compatibility problems with materials of construction, be inexpensive to produce, and provide a capacity greater than the existing R-22 and R-410A refrigerants. To be absolutely perfect, it would be available as a drop-in refrigerant that operates more efficiently than current refrigerants do in existing systems.
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