Estimation of power output in thermoelectric generators (TEG) modules with mismatching thermal conditions

被引：0
作者：
Sanin-Villa, Daniel [1 ]
Chejne, Farid [2 ]
Escobar, Whady Florez [3 ]
机构：
[1] Univ EAFIT, Escuela Ciencias Aplicadas Ingn, Medellin, Colombia
[2] Univ Nacl Colombia, Fac Minas, Dept Proc & Energia, Grp Invest TAYEA,Sede Medellin, Medellin 050034, Colombia
[3] Univ Pontificia Bolivariana, Grp Energia & Termodinam, Medellin, Colombia
来源：
INTERNATIONAL JOURNAL OF MODELLING AND SIMULATION | 2025年
关键词：
Thermoelectric generator; renewable energy; non-linear equations; radial basis functions; homotopy method; TEMPERATURE-DEPENDENCE; PERFORMANCE; HEAT; MODEL; EQUATION; BEHAVIOR; OPTIMIZATION; VALIDATION; PARAMETERS; EFFICIENCY;
D O I：
10.1080/02286203.2025.2470713
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In industrial applications, thermoelectric generators (TEGs) are commonly constructed using several p-n types of thermoelectric (TE) materials interconnected in series. The TEG module is placed over the heat source to extract the maximum power output from a hot surface, with the opposite face exposed to a lower temperature. However, achieving a homogeneous temperature distribution on the module's hot side can be challenging due to many industrial heat sources' variable and non-homogeneous nature. As a result, mismatched temperature conditions are often encountered, with some TE pairs experiencing a different ${T_h}$Th temperature from others. This can significantly impact the overall performance of the TEG module, necessitating comprehensive modeling techniques to predict the behavior of these systems under the Dirichlet and Neumann boundary conditions. This work presents a mathematical model for evaluating thermoelectric generators that includes the effect of temperature-dependent TE properties and conditions of mismatch. The model also introduces a novel method for solving the strongly non-linear problem with low computational cost. The one-dimensional equations for temperature profile, electrical potential, and heat generation in the steady state are derived using radial basis functions and the homotopy method.
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页数：18
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