How to choose the appropriate refrigerant

January 14, 2025

Choosing the appropriate refrigerant requires comprehensive consideration of multiple factors, and the following are some key considerations based on search results

Environmental requirements: Refrigerants that comply with national environmental regulations must be selected.

Refrigeration temperature requirements: High temperature (low pressure), medium temperature (medium pressure), and low temperature (high pressure) refrigerants are selected according to the different refrigerant temperatures and cooling conditions. The standard evaporation temperature of the refrigerant usually selected should be 10 ℃ 43 lower than the refrigeration temperature.

Properties of refrigerants: Select non-toxic, non explosive, and non combustible refrigerants based on their thermal, physical, and chemical properties; The selected refrigerant should have good heat transfer, low resistance, and good compatibility with the materials used in the refrigeration system.

Types of compressors: The working principle of different refrigeration compressors varies. A volumetric compressor increases the pressure of refrigerant gas by reducing its volume. Generally, refrigerants with high refrigeration capacity per unit volume, such as R134a, R22, etc., are selected.

Other factors include critical pressure, boiling point, latent heat of vaporization, corrosive effect on metals, price, and source.

In summary, when choosing a refrigerant, it is necessary to comprehensively consider the above factors and make a selection based on specific usage scenarios and needs.

Shanghai KUB Refrigeration Equipment Co., Ltd.

 

 

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