What is R-12 refrigerant used for?
What is R-12 refrigerant used for?
R-12 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone. R-12 has many applications in refrigeration and air conditioning including large to mediums size chillers, automotive air conditioning, and as an aerosol propellant.
What oil properties are required with R-12?
Essential properties required in a refrigerant are as follows:
- High latent heat of vaporization.
- A High Suction gas density and a Low Compression ratio.
- Non-corrosive, non-toxic and non-flammable.
- High critical temperature.
- Compatibility with the lubricating oil.
- High latent heat.
- Low boiling point.
- Low condensing pressure.
What are properties of refrigerants?
Low boiling Point. High Critical Temperature. High latent heat of vaporisation.
Can you still recharge R12?
No you can not recharge an AC system equipped with R-12 unless you are a licensed technician. You can convert your AC system to R-134 yourself, once the R-12 is dealt with correctly.
Why is R12 bad?
It became known as R12 or Freon. When used in refrigerator and A/C systems, R12 cooled incredibly well. And it was safe—neither poisonous to breathe, nor flammable. Unfortunately, the widespread use of R12 appeared to be significantly degrading the Earth’s ozone layer, potentially causing a worldwide health crisis.
Is R12 a good refrigerant?
1) Safe properties: Refrigerant R12 is nontoxic, nonflammable, and non-explosive. This makes it highly popular for the domestic as well as the commercial applications. 2) Stability: R12 is highly stable chlorofluorocarbon and it does not disintegrate even under the extreme operating conditions.
Is R 11 a CFC?
R-11 is a colorless and odorless CFC refrigerant that was completely banned from production by 1996 under the Montreal Protocol for depleting the ozone. It is a low-pressure refrigerant that was commonly used in centrifugal chillers and before the 1970’s it was used as a propellant for aerosols.
What is the boiling point of R12 refrigerant?
-29.8 °C
Dichlorodifluoromethane/Boiling point
What are the properties of the refrigerant R12?
Here are some of the important properties of the refrigerant R12: 1) Safe properties: Refrigerant R12 is nontoxic, nonflammable, and non-explosive. This makes it highly popular for the domestic as well as the commercial applications.
What can be used in place of R12?
R12 is being replaced by other refrigerants and some of the suggested replacements for R12 are: R-134a, R-401a, R-401b. Book: Principles of Refrigeration by Roy J. Dossat, fourth edition, Prentice Hall
What is the composition of the gas R12?
Composition: R12 : Introduction Dichlorodifluoromethane (R-12) is a colorless gas usually sold under the brand name Freon-12, and a chlorofluorocarbon halomethane (CFC) used as a refrigerant and aerosol spray propellant.
What are the properties of R12 chlorofluorocarbon?
2) Stability: R12 is highly stable chlorofluorocarbon and it does not disintegrate even under the extreme operating conditions. However, if it is brought in contact with the flame of fire or the electrical heating element, it disintegrates into the toxic products.