The History of the Seebeck-Peltier Effect

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A Seebeck effect occurs when two variant metal in a circuit differ in the temperature by the process of thermo electricity while converting themselves into an electric current. The Seebeck was discovered in the year 1892; it refers to one of the three recurring processes which are interrelated with thermo electricity, temperature and conductivity. The Peltier and the Thomson effect were first to be recognized in the year 1834 and 1851 simultaneously.

Like most of the electrical and scientific processes are named after their inventors, the sea back process is also named after a Prussian scientist from east called Thomas Johann Seebeck. He was born in the year 117 and died 1831. In the year 1821 Thomas discovered that 2 variant metals when connect at different temperatures at two places, they generate electricity.

The scientist held out a compass near the built circuit and what he discovered was that the needle changed the course of direction. The fact came out that changed direction’s magnitude apparently increased just like the amount of temperature raised. He conducted various experiments which came down to the conclusion that the compass was not affected by the increased temperature and the metal conductors. But when the metals where changed, there was also a change in the course of direction of the needle’s magnitude.

For describing the voltage that is produced in the conductor in midst of the two points there is a number known as the see back coefficient. 1 degree Kelvin a uniform temperature difference is created in the middle of the two points.

The experiments which Seebeck created of the metals reacted to the temperatures; it created a loop of current in the circuit and the magnetic field. The scientist was not aware that the current was passing through the circuit and he called the effect a thermo magnetic effect based on the force of magnetism.

The second phenomena which we saw earlier is the Peltier effect made and founded by a French scientist Jean Charles Athanese Peltier in the year 1834. He described the process in his experiment by changing the voltage between the metal conductors and to his surprise the temperatures changed at the either side of the conductors at equal proportion.

A German scientist took over the continuation of peltier’s process in the year 1839. His name was Heinrich Lenz; he lived between the years 1804 to 1865. He examined that the current which flows through the circuit is made by the transference of heat at the two ends. Both this experiments were exceptionally concentrated on the effects of thermo electric to the different parts of the circuit. Now they are aptly known as the Peltier-seebeck effect or the Seebeck Peltier effect.

The Thermo electric coolerscreate a difference in temperature; it becomes warm at one side and colder at the other side. They are opted for double matter uses either for freezing the things or making something warm. The peltier effect works well on the thermoelectric coolers.

The British physicist William Thomson also described this as the Thomson effect which describes the amount of the absorbed heat and the heat that is created. It is based on the increase or decrease in the temperature.

+Kerry Tiwana is a full time tech savvy blogger, author and founder of TechMafia, you can follow him on Facebook.

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