The advantages and applications of thermoelectric cooling technology

Time : May 07 2015Source :analogtechnologies Author : Analog Click :
Until 1950’s, with the rapid development of semiconductor thermoelectric mateials with good performances, the efficiency of thermoelectric effect was improved so greatly that the thermoelectric refrigeration and the thermoelectric generation entered into the field of engineering practice. When comparing with the existing compression refrigeration or absorption refrigeration, the thermoelectric cooler (TEC) depends on the heat transfered by electrons to achieve refrigeration. It has the following advantages:

1)no refrigerant and no pollution;

2)no mechanical moving parts, simple structure, no noise, no friction and high reliability ;

3)the cooling speed and temperature is adjusted by changing the working current, which is flexible control; 

4)thermopile can be arbitrary distributed and the size and shape can be changed according to requrement. So TEC can be widely uesd in the defense industry, agriculture, commerce, medical and some other fields. For example, it not only can be used for small travel and refrigerators, water dispensers and other household appliances, but also can be used for low temperature medical apparatus. However, the most important application is in the field of information technology, which can be used as cold source of electronic componets (infrared detector, laser diode, transistor, resistor or other CPU components and computer chip).

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