TY - JOUR
T1 - Thermoelectric thomson relations revisited for a linear energy converter
AU - Gonzalez-Hernandez, Saul
AU - Arias-Hernandez, Luis Antonio
N1 - Publisher Copyright:
© 2019 Walter de Gruyter GmbH, Berlin/Boston 2019.
PY - 2019/7/1
Y1 - 2019/7/1
N2 - In this paper we revisit the classic thermocouple model, as a Linear Irreversible Thermodynamic (LIT) energy converter. In this model we have two types of phenomenological coefficients: the first comes from some microscopic models, such as the coefficient associated with the electric conductivity, and the second comes from experimental facts, such as the coefficient associated with the Seebeck power. We show that in the last case, these coefficients can be related to the thermodynamic operation modes of the energy converter. These relations between the experimental phenomenological coefficients and the regimes of performance allow us to propose a first and a second Thomson-type relation, which give us 12 new relations between the Seebeck power, the Peltier heat and the Thomson heat. With this purpose we develop the idea of non-isothermal linear energy converters operated either "directly" (like a heat engine) or "inversely" (like a refrigerator). We analyze the energetics associated to these converters operating under steady states corresponding to different modes of performance, all of them satisfying the fundamental Onsager symmetry relations.
AB - In this paper we revisit the classic thermocouple model, as a Linear Irreversible Thermodynamic (LIT) energy converter. In this model we have two types of phenomenological coefficients: the first comes from some microscopic models, such as the coefficient associated with the electric conductivity, and the second comes from experimental facts, such as the coefficient associated with the Seebeck power. We show that in the last case, these coefficients can be related to the thermodynamic operation modes of the energy converter. These relations between the experimental phenomenological coefficients and the regimes of performance allow us to propose a first and a second Thomson-type relation, which give us 12 new relations between the Seebeck power, the Peltier heat and the Thomson heat. With this purpose we develop the idea of non-isothermal linear energy converters operated either "directly" (like a heat engine) or "inversely" (like a refrigerator). We analyze the energetics associated to these converters operating under steady states corresponding to different modes of performance, all of them satisfying the fundamental Onsager symmetry relations.
KW - first and second Thomson relations
KW - non-isothermal energy converters
KW - performance of energy conversion systems
UR - http://www.scopus.com/inward/record.url?scp=85067509090&partnerID=8YFLogxK
U2 - 10.1515/jnet-2017-0068
DO - 10.1515/jnet-2017-0068
M3 - Artículo
AN - SCOPUS:85067509090
SN - 0340-0204
VL - 44
SP - 315
EP - 332
JO - Journal of Non-Equilibrium Thermodynamics
JF - Journal of Non-Equilibrium Thermodynamics
IS - 3
ER -