What are the commonly used refrigerants in automotive air conditioning systems?
1 Answers
Here is an introduction to the commonly used refrigerants in automotive air conditioning systems: 1. Freon-12 (Code: R12): R12 is a halogenated derivative of alkanes, chemically known as dichlorodifluoromethane. It is a medium-pressure, medium-temperature refrigerant widely used in small and medium-sized refrigeration equipment in China. It is a colorless, transparent, odorless, almost non-toxic, non-flammable, non-explosive, and very safe refrigerant. 2. R-134A refrigerant, also known as R134A, HFC134A, HFC-134A. Since R-134A belongs to the HFC category (non-ODS substances, Ozone-depleting Substances), it does not damage the ozone layer at all. It is an environmentally friendly refrigerant recognized and recommended by most countries worldwide and is currently 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 at present. Its main characteristics include: containing no chlorine atoms; having excellent safety performance; physical properties are relatively close to CFC12, making system retrofitting easier; heat transfer performance is better than CFC12, significantly reducing the amount of refrigerant required.
