R152a is most commonly used as a component within other refrigerant blends, as a propellant, and in some XPS foams.
Its relatively low global warming potential when compared to other HFCs is desirable, however, its flammability creates challenges thus limiting its use.
Difluoroethane is a pure fluorinated hydrocarbon with a very similar chemical formula to R134a. It has a vapor pressure curve that is equivalent to that of R134a, with small deviations of about 2K. R152a also has equivalent chemical characteristics. So it is compatible with all materials in commercial compressors and refrigeration components, thermostatic expansion valves, and lubricants.
R152a also features superior thermodynamics characteristics to those of R134a or HFOs. Heat transfer coefficients in evaporators and condensers increases in about 20% thanks to better physical properties of R152a compared to R134a. In addition a lower viscosity of gas results in a reduction of pressure drop in suction lines of about 30%. A lower molecular weight in R152a implies a high latent heat capacity, greater volumetric compressor efficiency, and a better COP performance of the cooling cycle. Also, discharge temperature increases in about 10K compared to R134a.
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