Refrigeration air mode of refrigerator

2021-11-09

Gas compression refrigerator: It is a refrigerator that relies on low boiling point liquid refrigerant (such as Freon R12) to absorb heat during vaporization to achieve refrigeration, and then use a compressor to evaporate and compress it, and then release heat to liquefy it, thereby completing the refrigeration cycle. Due to the theory and production technology of this refrigerator, the process is relatively mature and has a long service life.

Gas absorption refrigerator: It is a refrigerator powered by heat source, commonly used ammonia as refrigerant, hydrogen that can cause liquid ammonia evaporation conditions is used as a diffuser, and a continuous "absorption-diffusion" method is completed by using a mixed solution of ammonia, water and hydrogen. Because there is no running machinery, it has no noise, simple structure, low cost, not easy to damage, and long service life. It can be heated by various heat sources such as electricity, kerosene lamps and solar energy to make it work.

Semiconductor refrigerator: It is the use of semiconductor materials to produce the Pearl effect to work, that is, the use of P-type semiconductor and N-type semiconductor made of electric couple, connected to the direct current, at the node to produce heat and heat absorption phenomenon, so as to achieve the purpose of refrigeration. Compared with mechanical refrigeration, semiconductor refrigeration has the characteristics of small size, light weight, no noise, no vibration, no wear, long life, convenient cooling rate adjustment, and no pollution. However, due to the high price, it is not widely used.

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