22 December 2011
The current situation of refrigerant use and options is characterized by required global phase-out of HCFCs, the need to manage the lifetime operation of CFC-based and HCFC-based equipment, and concerns to reduce global warming. The technical choices are universal, but local laws, regulations, standards, economics, competitive situations and other factors influence regional and local choices. This article summarizes the 2010 Assessment Report of the UNEP Refrigeration, Air Conditioning, and Heat Pumps Technical Options Committee
( http://ozone.unep.org/teap/Reports/RTOC/index.shtml ). It describes the status and trends for future
refrigerant alternatives, the primary current solutions being adopted in developed and developing countries
for the several applications of refrigeration and air conditioning, and the estimated refrigerant bank.