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

Abstract

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

Conference

Conference30th International Conference on Thermoelectrics, ICT2011
Abbreviated titleICT2011
CountryUnited States
CityTraverse City
Period17/07/1121/07/11

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Networks (circuits)
Ammeters
Voltmeters
Geometry
Heat sinks
Partial differential equations
Materials properties
Switches
Heating
Temperature

Cite this

Ruoho, M., Rossi, T., Tittonen, I., Soinila, E., Jokipii, M., & Tervo, J. (2011). Comparison of thermoelectric multiphysics model and device. In Book of abstracts [412] Michigan, USA: Michigan State University.
Ruoho, Mikko ; Rossi, Tuomas ; Tittonen, Ilkka ; Soinila, Erno ; Jokipii, Mika ; Tervo, Jyrki. / Comparison of thermoelectric multiphysics model and device. Book of abstracts. Michigan, USA : Michigan State University, 2011.
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author = "Mikko Ruoho and Tuomas Rossi and Ilkka Tittonen and Erno Soinila and Mika Jokipii and Jyrki Tervo",
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Ruoho, M, Rossi, T, Tittonen, I, Soinila, E, Jokipii, M & Tervo, J 2011, Comparison of thermoelectric multiphysics model and device. in Book of abstracts., 412, Michigan State University, Michigan, USA, 30th International Conference on Thermoelectrics, ICT2011, Traverse City, United States, 17/07/11.

Comparison of thermoelectric multiphysics model and device. / Ruoho, Mikko; Rossi, Tuomas; Tittonen, Ilkka; Soinila, Erno; Jokipii, Mika; Tervo, Jyrki.

Book of abstracts. Michigan, USA : Michigan State University, 2011. 412.

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

TY - CHAP

T1 - Comparison of thermoelectric multiphysics model and device

AU - Ruoho, Mikko

AU - Rossi, Tuomas

AU - Tittonen, Ilkka

AU - Soinila, Erno

AU - Jokipii, Mika

AU - Tervo, Jyrki

N1 - Project code: 41968-1.1 Poster n. P173

PY - 2011

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N2 - 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.

AB - 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.

M3 - Conference abstract in proceedings

BT - Book of abstracts

PB - Michigan State University

CY - Michigan, USA

ER -

Ruoho M, Rossi T, Tittonen I, Soinila E, Jokipii M, Tervo J. Comparison of thermoelectric multiphysics model and device. In Book of abstracts. Michigan, USA: Michigan State University. 2011. 412