Моделювання плоских термоелектричних модулів з різною геометричною формою напівпровідникового матеріалу

Abstract

Three-dimensional models of flat Peltier thermoelectric elements with different geometric shapes of semiconductor material: cube, cylinder, truncated pyramid and two monolithic truncated pyramids were created and studied. The volume of the semiconductor material is 8 mm2 and its height is 2 mm, with the height being a fixed distance between the contact plates (conductors) and the work plate in all models. In fact, all considered models are created from the same semiconductor material and are studied under the same initial conditions. For research and calculation of three-dimensional models, the finite element method was used in the ELCUT software complex. As a result of the conducted research, the main electrical and thermal parameters of the created models of flat thermoelectric elements were obtained, which include: current density and temperature on the conductors of thermoelectric elements. Comparative analysis of the obtained thermoelectric parameters made it possible to choose the most effective types of forms of semiconductor material to increase the efficiency of using the Peltier thermoelectric effect.