Thermoelectric cooling

THERMOELECTRIC EFFECTBy: Bugia, Mey Felix Arnel B.WHAT IS THERMOELECTRIC EFFECTIs the direct conversion of temperature differences to electric voltage and vice versaIt is electricity produced directly from heatencompasses separately identified effects: the Seebeck effect, Peltier effect, Thomson effect

SEEBECK EFFECTis the conversion of temperature differences directly into electricity.

named after the Baltic German physicist Thomas Johann Seebeck.

discovered that a compass needle would be deflected by a closed loop formed by two different metals joined in two places, with a temperature difference between the junctions.

CAUSES OF SEEBECK EFFECTAt the junction of two dissimilar metals, electrons migrate in one direction across the junction.It sets up an opposing electric field.

PELTIER EFFECTis the presence of heating or cooling at an electrified junction of two different conductors

named for French physicist Jean Charles Athanase Peltier

CAUSES OF PELTIER EFFECTWhen a current flows across the junctions of two metals, it give rise to an absorption or liberation of heat, depending on the direction of the current.

THOMSON EFFECTDiscovered by William Thomson

It is a more comprehensive explanation of the Seebeck and Peltier effect

When an electric current is passed through a conductor having a temperature gradient over its length heat will be either absorbed by or expelled from the conductor.APPLICATIONSThermoelectric Generator

Thermoelectric Cooling