On the Method of Refrigeration
The refrigeration of the world is related to people's livelihood and involves all kinds of industries. The key to refrigeration lies in the delicate use of refrigeration chemistry.

Refrigeration chemistry, the choice of the first refrigerant. Refrigerant, the core element of refrigeration. Its properties need to have the characteristics of low boiling point and high latent heat. Low boiling point, it is easy to vaporize and absorb heat, and the refrigeration effect is rapidly apparent; high latent heat, the cold storage capacity is abundant, and it can maintain a low temperature for a long time.

In the refrigeration system, the refrigerant is like blood. At the beginning, after compression, the pressure rises sharply, the temperature is also high, and the gaseous refrigerant turns into a liquid state. This is the process of energy accumulation. Then, the liquid refrigerant flows into the expansion valve, the pressure drops sharply, gasifies instantaneously, absorbs heat sharply, and the surrounding temperature drops sharply. This is the key moment of refrigeration. After gasification, the refrigerant returns to the gaseous state, re-enters the compressor, and repeats itself, and the refrigeration work is continuous.

Furthermore, refrigeration chemistry also involves the adaptation of system materials. Different refrigerants interact with system materials differently. If they are not properly adapted, they may cause corrosion, damage the life of the system, or affect the refrigeration efficiency. Therefore, when selecting materials, it is necessary to carefully investigate the characteristics of the refrigerant and choose the appropriate one to ensure the stable operation of the system.

The beauty of refrigeration chemistry is not only related to the refinement of technology, but also depends on the trade-off between environment and economy. Efficient, environmentally friendly and economical refrigeration chemistry solutions are needed today and the direction of future refrigeration industry development. Practitioners should deeply study their principles and make good use of their methods to achieve the best of refrigeration and benefit everyone.