Basic of Thermoelectric Module

Thermoelectric  module or TEMs is a module or device which works on the concept of peltier effect. Peltier effect can also be termed as Seebeck effect, Thomson effect, thermoelectric effect or Peltier – seeback effect. This effect was invented by French physicist john- Charles- Athanese Peltier. According to peltier effect, electricity can cause heat difference by connecting two different metals or vice versa means turn heat into electricity.

Thermoelectric modules have a number of advantages:

·        Silent operation

·        Solid design

·        Absence of moving parts and vibrations

·        Absence of hazardous materials (gas or fluid)

·        Cooling to very low temperature

·        Environment friendly

Because of all these advantages, thermoelectric modules have found various applications which make it popular in whole range of industries:

v  Telecom Industry:  Provide cooling for transmission lasers, photo diode, stabilize the temperature of optical channel.

v  Biomedical Industry: Used in temperature stabilize equipment, DNA analyzer

v  Automotive Industry: Used in in-cabin refrigerators, climate seats, air conditioning and electric power generation.

v  Photonics industry: Used in laser system cooling, temperature stabilizations and various sensors and detectors.

All the above industry uses the core functioning of peltier effect. When a voltage depends on DC polarity is supplied by semiconductor to two different current conducting material or plates then one side gets hotter and other side gets cool down. The same process is also followed in reverse order to generate electricity.