ThermoElectric Energy Conversion
…reverse of seebeck effect… Operation II: Peltier effect
Operation II: Peltier Effect …the seeback effect covers only half of the story about thermoelectricity. In 1834, French physicist Jean Peltierdiscovered that the reverse of the concept of the seebeck effect is also true. [intro video]… …
Operation II: Peltier Effect Peltier Effect Thermoelectric Cooler Diagram:
Operation II: Peltier Effect Peltier Effect Animation: As current passes through the 1st plate, the negative electrons and positive holes (called carriers) transport the heat making the 1st plate to be warm (heat is absorbed) and the 2nd plate to be cold (heat is released).
Operation II: Peltier Effect • As for the mathematics behind this concept: where ΠAB is the Peltier coefficient for the thermocouple composed of materials A and B and ΠA (ΠB) is the Peltier coefficient of material A (B). Π varies with the material's temperature and its specific composition: p-type silicon typically has a positive Peltier coefficient below ~550 K, but n-type silicon is typically negative. Heat is generated at the upper junction at T2, and absorbed at the lower junction at T1. The Peltier heat absorbed by the lower junction per unit time is equal to