Power generation through Thermoelectric generators

Introduction

               Electricity has become a necessity for every one. Electricity is no longer a luxury, it has become a necessity in our everyday lives. Its very difficult to  live without electricity for an extended period of time. In this case everybody is searching for power generation which would be available at a decent price. To generate electricity there are many methods like solar generators, nuclear reactors, from wind energy etc but for every  generators, to be worked perfectly,  they need spaced places or having restricted to certain conditions. By using Thermoelectric generators(TEGs) we can over come few of these limitations.

Thermoelectric generators are devices which convert heat directly into electrical energy, using a phenomenon called the Thermoelectric effect(Seebeck effect).

                          

 WORKING

TEG uses a phenomenon called Seebeck effect. Seebeck is the conversion of temperature differences directly into electricity. Seebeck discovered that a compass needle would be deflected when a closed loop was formed of two metals joined in two places with a temperature difference between the junctions. This is because the metals respond differently to the temperature difference, which creates a current loop, which produces a magnetic field. Seebeck, however, at this time did not recognize there was an electric current involved, so he called the phenomenon the thermomagnetic effect, thinking that the two metals became magnetically polarized by the temperature gradient. The Danish physicist Hans Christian played a vital role in explaining and conceiving the term “thermoelectricity”.

 When heat and cold are applied, the device then generates electricity.

Generation of electricity from Thermoelectric generators

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Power generation through Thermoelectric generators