Could you please tell me the composition and cooling effectiveness of refrigerant R-134a? Thank you!

Reply 1# Lu Cunlei: R-134a is the abbreviation for tetrafluoroethane. Its cooling effect is decent, but it’s not as good as Freon. However, it does not damage the ozone layer, and its environmental impact is less severe than that of Freon

The centrifugal ice machines produced by Wuhan McVey use R-134a as a refrigerant, and the overall performance is quite good.

Our company produces R-134a, and it is necessary to be able to obtain information from Dongyue Group, a well-known manufacturer of refrigerants. Tetrafluoroethane (R134a), as a refrigerant, can be widely used in automotive air conditioning systems, refrigerators, central air conditioning systems, and commercial cooling systems； It can also be used as an aerosol propellant, flame retardant, and foaming agent in products such as pharmaceuticals, pesticides, cosmetics, and cleaning agents. Product quality: top-grade product, purity ≥99.8%. Environmental parameters: ODP=0, GWP=1300

Reply to 8# legendli: The advertising is way too excessive; the post should be deleted

Reply to 1# Lu Cunlei: 134A is a new type of refrigerant that belongs to the hydrofluorocarbon category (abbreviated as HFC). Its evaporation temperature is -26.5°C. Its thermal properties are similar to those of R12 (CFC12). Its ozone depletion potential (ODP) is 0; however, its global warming potential (GWP) is 1300. It does not deplete the ozone layer in the atmosphere. It is an environmentally friendly refrigerant that has been promoted in recent years; nevertheless, it contributes to the greenhouse effect. ), it is now used in refrigerators, freezers, and automotive air conditioning systems as a replacement for Freon 12. Molecular formula: CH2FCF3
Boiling point (101.3 kPa): –26.1 °C
Critical temperature: 101.1 °C
Critical pressure: 4066.6 kPa
Liquid density: 1188.1 kg/m³
Saturated vapor pressure (25 °C): 661.9 kPa
Vapourization heat/latent heat of vaporization (at boiling point, 1 atm): 216 kJ/kg
Ozone depletion potential (ODP): 0
Global warming potential (GWP, 100 years): 1300
ASHRAE safety rating: A1 (non-toxic and non-flammable)
Density of saturated liquid at 25 °C: 1.207 g/m³
Specific heat of liquid at 25 °C: 1.51
Solubility in water (25 °C): 0.15%
Global warming coefficient (GWP): 0.29
Critical density: 0.512 g/cm³
Evaporation latent heat at boiling point: 215.0 kJ/kg
As can be seen from these values, R134a has a greenhouse effect, which is the main reason why the United States has called for its elimination. Production of this substance has already been stopped in Europe, while China, as a developing country, has not yet joined the relevant negotiations. It is estimated that it will take at least 5 years before production is completely halted and this substance is phased out. The refrigerant currently being promoted is 410, which is a mixture of R32 and R125; its patents have now expired.

It is an environmentally friendly refrigerant and a substitute for R12. However, its cooling efficiency is only 60% of that of R22