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Three Optima of Thermoelectric Conversion: Insights from the Constant Property Model

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Publicat a:Entropy vol. 27, no. 3 (2025), p. 252
Autor principal: Raux, Paul
Altres autors: Goupil, Christophe, Verley, Gatien
Publicat:
MDPI AG
Matèries:
Generators
Cold
Cooling
Thermodynamics
Cost function
Heat pumps
Thermoelectricity
Temperature
Heat exchange
Electric power
Optimization
Heat
Electric generators
Electric currents
Efficiency
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Resum:Starting from Ioffe’s description of a thermoelectric converter, we recover the optimal working points of conversion: the point of maximum efficiency and the one of maximal power. Inspired by biological converters’ optimization, we compute a third optimal point associated with cost of energy (COE). This alternative cost function corresponds to the amount of heat exchanged with the cold reservoir per unit of electric current used. This work emphasizes the symmetry between the efficiency and performance coefficient of the electric generator and heat pump modes. It also reveals the relation between their optimal working points.
ISSN:1099-4300
DOI:10.3390/e27030252
Font:Engineering Database