The working principle of refrigerator

According to the statistical analysis of the 2013-2017 China Refrigerator Industry Market Outlook and Investment Opportunity Analysis Report, there are 9 kinds of refrigerators' working principles according to different classifications:

1) Compression Refrigerator: this kind of refrigerator is provided with mechanical energy by the electric motor, and the compressor works on the refrigeration system through the compressor. Refrigeration system using low boiling point refrigerant, evaporation vaporization when absorbing heat principle made. Its advantages are long life, easy to use, 91 to 95% of the world's refrigerators belong to this category. Commonly used refrigerators use a refrigerant called R600 refrigerator a as a heat "porter", the refrigerator "heat" "carry" to the outside of the refrigerator.

2) Absorption refrigerator: This type of refrigerator can use a heat source (such as gas, kerosene, electricity, etc.) as power. The use of ammonia - water - hydrogen mixed solution in the continuous absorption - diffusion process to achieve the purpose of refrigeration. Its disadvantage is low efficiency, slow cooling, has been gradually eliminated.

3) semiconductor refrigerator: it is the use of PN-type semiconductor, DC current, in the junction of the Peltier effect to realize the principle of refrigeration refrigerator.

4) chemical refrigerator: it is the use of certain chemical substances dissolved in water when the strong absorption of heat and obtain the cooling effect of the refrigerator.

5) electromagnetic vibration type refrigerator: it is the electromagnetic vibration machine for this power to drive the compressor refrigerator. Its principle, structure and compression refrigerator is basically the same.

6) solar refrigerator: it is the use of solar energy as a refrigeration energy refrigerator.

7) adiabatic demagnetization refrigeration refrigerator.

8) radiation refrigeration refrigerator.

9) solid refrigeration refrigerator.