Thermodynamics of Thermoelectric Phenomena and Applications

Entropy

关键词: thermoelectricity;    optimum device design;    entropy production;    compatibility approach;    thermoelectric potential;   

DOI  :  10.3390/e13081481

来源: DOAJ

【 摘 要 】

Fifty years ago, the optimization of thermoelectric devices was analyzed by considering the relation between optimal performances and local entropy production. Entropy is produced by the irreversible processes in thermoelectric devices. If these processes could be eliminated, entropy production would be reduced to zero, and the limiting Carnot efficiency or coefficient of performance would be obtained. In the present review, we start with some fundamental thermodynamic considerations relevant for thermoelectrics. Based on a historical overview, we reconsider the interrelation between optimal performances and local entropy production by using the compatibility approach together with the thermodynamic arguments. Using the relative current density and the thermoelectric potential, we show that minimum entropy production can be obtained when the thermoelectric potential is a specific, optimal value.

【 授权许可】

Unknown