Simulating Thermoelectric Generator Using ANSYS Mechanical and ANSYS DesignXplorer Tools

DMITRIY GALDIN, IGOR DROZDOV, ALEXANDER KRETININ, GENNADIY SKOMOROKHOV, DMITRIY SHMATOV

Abstract


This paper presents a description of the numerical model, and also the results of an element of a thermoelectric generating battery modeling using the ANSYS Mechanical package of the finite element analysis. To simplify the model, from the initial geometry consisting of 600 elements, only one segment was separated, containing a single junction of dissimilar semiconductor elements. The simulation was performed in a stationary formulation with the assignment of temperature dependences for the main physical properties of the used materials. Using the obtained numerical model, the dependence of the sampling efficiency on the resistance of the external load connected to the thermoelectric element was investigated. For the analysis of various variants of heat exchange systems, an analysis of the temperature gradient between the “cold” and “hot” junctions of semiconductor elements was performed. According to the obtained results, response surfaces were formed, allowing to specify the predicted efficiency at given temperature ranges. In addition, the analysis of changes in the characteristics of a thermoelectric element with different thermal conductivity properties of adhesive layers in contact with a ceramic battery cell was also described. When planning an experiment for each adhesive layer, its thermal conductivity was changed in the established range, and heat fluxes on the cooled and heated surface of the element were used as the main controlled parameters.

Keywords


thermoelectric generator, numerical simulation, Thermoelectric generator (TEG).Text


DOI
10.12783/dteees/tpcase2018/30395

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