The main types of industrial refrigerants

Industrial refrigerants are the core working medium in industrial refrigeration systems, and their performance directly affects refrigeration efficiency, energy consumption, and environmental impact. The following provides a detailed analysis of industrial refrigerants from the perspective of type:

1、 The main types of industrial refrigerants

Ammonia (R717)

Characteristics: High efficiency, low cost, excellent thermodynamic performance, with zero ozone depletion potential (ODP) and global warming potential (GWP).

Application: Large cold storage, food processing, chemical cooling, etc.

Limitations: Toxic and flammable, requiring strict safety management.

Carbon dioxide (R744)

Characteristics: Environmentally friendly (ODP=0, GWP=1), non flammable, non-toxic, but with high working pressure.

Application: Supermarket cold chain, heat pump system, industrial low-temperature freezing.

Limitations: The equipment cost is high and requires special design.

Freon class (such as R404A, R507A)

Features: Stable performance, high safety, but high GWP (such as R404A with a GWP of 3922).

Application: Small and medium-sized cold storage, commercial refrigeration.

Limitations: Due to environmental regulations, it is gradually being phased out.

Hydrocarbons (such as R290, R600a)

Characteristics: Environmentally friendly (with extremely low GWP), efficient, but flammable.

Application: Small refrigeration equipment, household air conditioning.

Limitations: Explosion proof design is required, and the application scope is limited.

New environmentally friendly refrigerants (such as R1234yf, R1234ze)

Features: Extremely low GWP (close to zero), excellent environmental performance.

Application: Automotive air conditioning, some industrial refrigeration.

Limitations: High cost and need to improve technological maturity.