Refrigerant contains chemicals called fluorinated hydrocarbons (often referred to by a common brand name, “Freon”). why freon is used as refrigerant? But the old refrigerant (R134a) was harmful to the environment. Late in the decade, two … Over time the chemicals used in refrigerators and air conditioners have changed, since the first set of refrigerants created were found to be harmful to the ozone layer. Freon is a coolant/refrigerant used in A/C's or refrigerators to cool the air. The DuPont-produced gas made widespread use of refrigerators and air conditioners possible and served as propellant in aerosol sprays of all types. This is how it works: First, a compressor in your air conditioner compresses cold Freon gas. Freon gas is used in refrigerators, air conditioners, ovens and all other types of these things. Substance used in a cooling mechanism of refrigerator, as the heat carrier which changes from gas to liquid and then back to gas in the refrigeration cycle. Freon is the trademarked name for a liquid refrigerant used in refrigerators as well as air conditioners, heat pumps and other appliances used in heating and cooling. If your refrigerator fails to keep food cold, you may think that the unit needs more Freon. This highly scientific word means that this type of refrigerant won't damage the ozone layer like freon does. This system counts on a constant amount of Freon in the refrigerator at all times. This gas, called HFC-23, is also harmful and contributes to global warming. The refrigerant is liquid in form but transforms to gas and back to liquid again. Freon is very damaging to the environment, so leaks must be brought under control as soon as possible. A refrigerator's Freon is locked in a closed system that does not permit even trace amounts of refrigerant into the air. A small amount of oil is combined with the Freon gas to lubricate the compressor. Since Freon is generally considered environmentally hazardous, it’s being phased out of use, so depending on where you are located, purchasing refrigerant can be difficult; some areas even require a special permit to buy it. When the Freon gas is compressed, its pressure rises, making it very hot. What is a Refrigerant? Why is my fridge leaking ? Asked in Air Conditioning and Coolant , Honda Civic EX , Cold and Flu , Chemistry Why is freon cold ? Commercial refrigerator and freezer units, which go by many other names, were in use for almost 40 years prior to the common home models. While many fluids can be used as refrigerants, there is a special class of chemicals that were designed specifically to act as the most efficient fluids possible. Why is my fridge leaking ? why freon is used as refrigerant? Refrigerant gas is a chemical product used in refrigerators, freezers, air conditioners and heating, ventilating and air conditioning units ().These gases, which have very low evaporation points, are condensed under pressure to chill the air. That being said, you need to know that if it leaks into an open flame, such as with a gas water heater, it creates a deadly chemical. These gases, which have very low evaporation points, are condensed under pressure to chill the air. There are two types of freon mixes: One that is used in residential cooling systems and R-22, which is considered to be more environmentally friendly. Refrigerant gas is a chemical product used in refrigerators, freezers, air conditioners and heating, ventilating and air conditioning units . Although Freon is highly restricted and regulated in its use, older appliances still use and release this harmful gas. 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