There are pros and cons to each of the currently accessible refrigerants. No single chiller refrigerant exists that satisfies all the requirements of the ideal chemical freezing mixture. Keep in mind aircon chemical wash vs aircon overhaul that several requirements are application-specific.
The choice of refrigerant for a chiller unit is influenced by many factors, including industry preference, cost, the requirement to comply with rules governing industrial and occupational safety along with environmental impacts, and the warming potential.
Water:
Water can be used as a refrigerant since it is inexpensive, non-toxic, abundant, and safe for the environment. However, there are significant drawbacks to using water-based refrigerants, including as the effectiveness of the cooling procedure is easily impacted by the surrounding temperature. Water in contrast to some other options, can damage refrigerant components and can significantly increase maintenance expenses. To get more about refrigerants visit, https://www.socool.sg/.
R407C:
Difluoroethane (R32), pentafluoroethane (R125), and 1,1,1,2-tetrafluoroethane (R134A) are all hydrofluorocarbons that work together to increase temperature, lessen flammability, and lower pressure, in that order. Since the R-22 refrigerant systems will be phasing out before 2020, this refrigerant is seen as the best possible replacement.
R404A:
R404A is an option if you need a refrigerant that operates at low to medium temperatures. Hydro-carbon blends are suitable for usage in commercial settings such as grocery stores and cold storage facilities.
R410A:
R410A is a form of anisotropic hydrofluorocarbon combination that can be utilized in standard air conditioners. Since R22 refrigerant is being phased out, its use has increased because it does not deplete the ozone layer and is therefore safe to use.
R22:
It also known as R22 Freon as well as HCFC-22 Freon, was designed specifically for low-temperature applications due to its low boiling point of -40.7°C. Due to the extremely high ozone-depleting capacity (ODP = 0.05) & climate change potential (GWP = 1100), it was phased out since it posed a threat to the environment.
R134A HFC:
Often referred to as “Freon 134A,” this refrigerant is a mixture of hydrofluorocarbons (HFCs) and halogenated alkanes. Among its many desirable qualities as a refrigerant are thermal stability, low toxicity, non-corrosiveness, and incombustibility. It finds extensive application in automotive air conditioners and commercial air coolers.
In addition, the ozone depletion potential and global warming potential of R134A HFCs are the lowest of all HFCs. Intending to gradually phase out the usage of what is generally accepted as a safe and ecologically friendly technology.
R744 CO2:
Since carbon dioxide (CO2) is non-toxic and does not burn, it can be used as a refrigerant. The gas must be handled by a massive system, and any leaks pose a serious threat to public safety. R744 C02 refrigerant may additionally result in substantial costs associated with installation and upkeep.
Ammonia R717:
One type of refrigerant that does not contain halogens is ammonia (R717). In chiller facilities, this is the go-to refrigerant. The highest heat absorption rate makes it ideal for use with portable chillers rather than central air conditioning.
Ammonia’s consistent thermal performance is another advantage as a refrigerant for air coolers. It has a hazardous impact on the human body, thus it must be handled with care.
HCS:
Air coolers use hydrocarbons, another type of refrigerant, for residential and commercial refrigeration. R600A (isobutylene) & R290 (propane) are typical forms of hydrocarbons used as refrigerants.
Due to their extreme flammability, certain refrigerant kinds must be installed in a very specific manner. Propane, as is common knowledge, has zero ozone depletion potential and can be used in eco-friendly industrial air conditioners.
