During the examination of the process of decomposition question of refrigerants was not discussed, as it is not necessary to do so in connection with the basic physical principles of conditional changing substances. It is known, however, that in practice the different refrigerants are used in accordance with the specific requirements. The most important factors are:
Refrigerant should not be poisonous. Where this is not possible, the refrigerant must be a characteristic smell or must contain a tracer, so that leaks can quickly be followed.
The refrigerant must be non-flammable and explosive. Where this condition is not observed to the same precautions as in the first stage, should be in accordance with local legislation must be observed.
The refrigerant must have reasonable pressure, preferably slightly higher than the atmospheric pressure at the temperatures required to be held in the evaporator.
question refrigerants was not discussed, as it is not necessary to do so in connection with the basic physical principles of conditional changing substances.
It is known, however, that in practice the different refrigerants are used in accordance with the specific requirements. The most important factors are:
Refrigerant should not be poisonous. Where this is not possible, the refrigerant must be a characteristic smell or must contain a tracer, so that leaks can quickly be followed.
The refrigerant must be non-flammable and explosive. Where this condition is not observed to the same precautions as in the first stage, should be in accordance with local legislation must be observed.
The refrigerant must have reasonable pressure, preferably slightly higher than the atmospheric pressure at the temperatures required to be held in the evaporator.
To avoid heavy refrigerator design pressure, which corresponds to normal condensation pressure, should not be too high. Relatively high boiling point, so that the heat transmission can occur with minimal refrigerant circulates. Vaporous should not have too high specific volume, as this is crucial for the compressor stroke in particular cold profitability.
The refrigerant must be chemically stable under normal temperatures and pressures in refrigeration unit. The refrigerant is not corrosive and should not, either in liquid or vapour form, attack normal design materials.
Chillers