Peltier effect

views updated Jun 08 2018

Peltier effect Phenomenon in the temperature changes at a junction where an electric current passes from one kind of metal to another. When a current passes through a thermocouple, the temperature at one junction increases while that at the other decreases. This has been used for refrigeration. French physicist Jean Charles Peltier discovered the phenomenon in 1834. It is the reverse of the Seebeck effect.