Refrigerant is what is used for air conditioners, and it is important to produce cold air and hot air. I summarized the refrigerant on the table.
| Type of refrigerant | Mnemonic name | Main features | Up to now · Future |
|---|---|---|---|
| CFC | Specific flon(Old refrigerant) | Destroy the ozone layer. | Discontinued production in 1995 |
| HCFC | Fluorocarbon substitute(Old refrigerant) | Although it is lower than CFC, it destroys the ozone layer. | Target to be abolished by 2020 (developed countries) Target to eliminate by 2030 (emerging countries) |
| HFC | Fluorocarbon substitute(New refrigerant) | Don't destroy the ozone layer. | Aim for further spread |
In recent years, refrigerants called "HFC" are spreading in developed countries. On the other hand, in emerging countries, substitution for "HFC" has just begun.
A new refrigerant (HFC) called "R32" is attracting attention. This new refrigerant has low global warming potential and is environmentally friendly. However, due to the fact that it is flammable, it did not come into widespread use in air conditioners etc in Japan. Recently, it is noteworthy whether air conditioners using R32 will be released and popularized.
