Simulation of Heat Transfer Response on Single Leg Themoelectric Materials Behaviour

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.

• Periodical: Materials Science Forum (Volume 1055)
• Pages: 69-75
• DOI: https://doi.org/10.4028/p-48369p
• Online since: March 2022
• Authors: Siti Fadzillah Nurain Sidi Omar, Norhafizah Burham, Anees Abdul Aziz*
• Keywords: COMSOL Multiphysics, Heat Transfer, Peltier Effect, Seebeck Effect, Thermoelectric

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