The Operating Principle Of Semiconductor Refrigeration Technology

The application principle of semiconductor refrigeration technology is based on the Peltier principle. In 1834, French scientist Peltier discovered semiconductor refrigeration. The Peltier principle, also known as the "Peltier benefit", is to make full use of two different conductors, use a circuit composed of A and B, and pass in direct current, Joule heat can be generated at the joint of the circuit, and at the same time Some other heat will also be released. At this time, you will find that the other joint is not releasing heat, but absorbing heat. This phenomenon is reversible. As long as the direction of the current is changed, the exothermic and endothermic operations can be adjusted. There is a direct proportional relationship between the intensity of the current and the heat absorbed and released, which is closely related to the characteristics of the semiconductor itself. Properties are also related. Since the Peltier effect of metal materials is relatively weak, and semiconductor materials operate based on the Peltier principle, the effect produced will be stronger. Therefore, among refrigeration materials, semiconductors have become the main raw materials. However, when using this material, it should be noted that the dimensionless value of most semiconductor materials is close to 1, which is lower than the solid theoretical model. The result obtained in the calculation of actual data is 4. Therefore, for semiconductor materials In application, in order to make the rational use of semiconductor refrigeration technology, in-depth research is necessary.