Automotive Air Conditioning R134a Properties

 Automotive
Air Conditioning
R134a Properties

R134a Properties:

Since 1993 the Automotive industry of developed countries has started to use a non-ozone-depleting refrigerant HFC 134a (hydrofluorocarbon), its chemical name being Tetra Fluoroethane. We commonly refer to this refrigerant as R134a
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R134a was selected as a replacement refrigerant for R12 (Dichlorodifluoromethane)
because R12 containing chlorine has a major effect to ozone layer depletion.

R134a and water have the same abilities to change the state, but R134a can do this more
rapidly and at much lower temperature than water. At anytime above -26.3 C, R134a
change its state, becoming a vapor and absorb large quantities of heat from inside the
vehicle. This is what creates the cooling effect you feel inside the vehicle.

R134a is stored in containers under high pressure. If it is released into the atmosphere, it
will boil at -26.3 C.

Refrigerant R134a:

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