Semiconductor Refrigeration and Air Conditioning Technology

Semiconductor Refrigeration and Air Conditioning Technology

The application and development of semiconductor refrigeration and air-conditioning, inspecting the development of thermoelectric air-conditioning technology in the past 40 years, especially the past 10 years, pointed out that large-scale thermoelectric air-conditioning systems are still difficult to promote as ordinary building air-conditioning in the near future, and small-scale thermoelectric air-conditioning devices have unique advantages when applied to special occasions In the 1990s, the use of CFCs was banned globally, providing new opportunities and impetus for the development of thermoelectric air-conditioning technology. It is expected that the superlattice structure is a very potential way to improve the figure of merit of thermoelectric materials. Thermoelectric refrigeration, also known as semiconductor refrigeration, has no compressor and refrigerant, and has the characteristics of convenient control, reliable operation, flexible layout, and strong adaptability. In the late 1990s, the use of CFCs was banned globally. Against the background of the urgency of energy saving and environmental protection, the penetration and promotion of new materials and other related technologies provided new development opportunities and impetus for thermoelectric air conditioners.

Organizational structure of thermoelectric air conditioning system: large thermoelectric air conditioner, small thermoelectric air conditioner. Application and development of thermoelectric air conditioners: Submarines, ships, electronic vehicle air conditioners, passenger train air conditioners, automotive air conditioners, water source heat pumps, small thermoelectric air conditioners Semiconductor refrigeration air conditioners The development prospect of thermoelectric refrigeration technology: The improvement of thermoelectric refrigeration performance is fundamentally determined by two aspects factors, namely: the improvement of the figure of merit of the thermoelectric material; the optimization of the structure of the thermoelectric cooler. Large-scale thermoelectric air conditioners are difficult to promote as conventional building air conditioners in the near future, but thermoelectric air conditioners still have their special advantages in military, aerospace and other fields.

In areas where refrigeration is the mainstay and groundwater is abundant, it is more realistic to use thermoelectric water source heat pumps; the advantages of small thermoelectric air-conditioning devices for special purposes such as cabs and operating rooms are of concern; special-purpose miniature thermoelectric air-conditioning devices It has the irreplaceable advantages of compression refrigeration equipment. Size miniaturization is an important development direction of thermoelectric refrigeration modules, but it will take time for some theoretical optimization structural models to reach the stage of engineering application; superlattice nanomaterials are expected to be the most potential way to improve the figure of merit of thermoelectric materials. At the end of the 1980s, the use of CFCs was banned globally. With the urgency of energy saving and environmental protection as the background, and the penetration of related technologies such as electronics and new materials, it provided new development opportunities and impetus for thermoelectric refrigeration and air conditioning technology.