Abstract
Heat transfer simulation in Bi2Te3, Ca2FeMoO6, and SrTiO3 solid module single-leg had been investigated using COMSOL Multiphysics package. The software COMSOL Multiphysics was used to investigate the temperature distribution, electrical potential distribution, power output, and current vs temperature throughout the length of the sample for Bi2Te3, Ca2FeMoO6, and SrTiO3 which one of these three materials was showing potential as TE materials. The simulation showed that the perovskite material Ca2FeMoO6 and SrTiO3 had shown a net temperature difference across lengths of +191.943°C and +7.54°C while Bi2Te3 showed a net temperature difference of -60°C. Next, in electrical potential distribution across the length, Ca2FeMoO6 and SrTiO3 produced a higher voltage of 170mV and 160mV, while Bi2Te3 produced 49mV. The values of the power output for the three materials were calculated with 0.7A input current. It was found that Ca2FeMoO6, SrTiO3, and Bi2Te3 generated 119mW, 113mW, and 34mW in the simulation. The simulation results revealed that the Bi2Te3 is a p-type thermoelectric element and has the potential use in cooling due to Peltier cooling effect. However, Ca2FeMoO6 and SrTiO3 are n-type thermoelectric elements with a heating effect. The simulation and investigation of TE material using COMSOL Multiphysics showed more potentials and helped to explore, predicted and evaluated the conditions for other new TE materials.
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