What is the refrigerant added to car air conditioners called?
1 Answers
Car air conditioners use R134a automotive air conditioning refrigerant. The specific details are as follows: 1. Car air conditioners operate on the principle that R134a, when compressed and released, undergoes a rapid expansion in volume, absorbing a large amount of heat to achieve cooling. (Due to the ozone layer damage caused by R12, developed countries switched to R134a as a refrigerant starting in 1996 for environmental protection reasons.) Since R-134A is an HFC substance (non-ODS, Ozone-depleting Substances), it does not harm the ozone layer at all. It is currently recognized and recommended as an environmentally friendly refrigerant by most countries worldwide and is the mainstream eco-friendly refrigerant. It is widely used for initial installation in new refrigeration and air conditioning equipment and for replenishment during maintenance. It is the most widely used medium-to-low temperature environmentally friendly refrigerant. 2. The main characteristics of R134a are: it does not contain chlorine atoms; it has excellent safety performance; its physical properties are relatively close to those of CFC12, making it easier to retrofit refrigeration systems. It has better heat transfer performance than CFC12, and the amount of refrigerant required can be significantly reduced.
