Comparison of thermoelectric multiphysics model and device

Mikko Ruoho, Tuomas Rossi, Ilkka Tittonen, Erno Soinila, Mika Jokipii, Jyrki Tervo

    Research output: Chapter in Book/Report/Conference proceedingConference abstract in proceedingsScientific


    The efficiency of a thermoelectric device is dependent upon module geometry and the choice of materials. The effects of module geometry on performance of a thermoelectric device can be evaluated using finite-element model (Jaegle, 2007) of thermoelectric system. The model has been compared with measured values of a commercial Bi2Te3 thermoelectric generator module. Thermoelectric generator module was placed on heater with an adjustable heating power. The cold side (with heat sink) was kept at room temperature. Measurement circuit consisted of a switch, voltmeter, ammeter and load resistance. The model is implemented with COMSOLMultiphysics, using the "coefficient form" in the PDE-application mode, where thermoelectric field equations have been incorporated into the partial differential equations as coefficients. Thermoelectric generator module performance was simulated with closed circuit and open circuit. The results appear to be consistent with those reported previously (Ebling et al. 2009). The model can be used to simulate the effects of structural characteristics and materials properties on module performance. Thus, the model can be used as tool for design.
    Original languageEnglish
    Title of host publicationBook of abstracts
    Place of PublicationMichigan, USA
    PublisherMichigan State University
    Publication statusPublished - 2011
    MoE publication typeNot Eligible
    Event30th International Conference on Thermoelectrics, ICT2011 - Traverse City, United States
    Duration: 17 Jul 201121 Jul 2011
    Conference number: 30


    Conference30th International Conference on Thermoelectrics, ICT2011
    Abbreviated titleICT2011
    Country/TerritoryUnited States
    CityTraverse City


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