külmutusaina
Külmutusaine, often translated as refrigerant or coolant, is a substance used in refrigeration and air conditioning systems to absorb heat from one location and release it in another. These substances typically have a low boiling point, allowing them to readily evaporate and condense within the system's cycle. The process of evaporation absorbs heat, cooling the desired space, while condensation releases heat elsewhere, typically to the outside environment.
Historically, various substances have been used as refrigerants, including ammonia, sulfur dioxide, and methyl chloride. However,
In response to environmental regulations, newer generations of refrigerants have been developed. Hydrofluorocarbons (HFCs) replaced many