Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements

Adam D. Downey, Edward Timm, Pierre F P Poudeu, Mercouri G Kanatzidis, Harold Shock, Timothy P. Hogan

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)

Abstract

Measurements of assembled thermoelectric modules commonly include investigations of the module output power versus load resistance. Such measurements include non-ideal effects such as electrical and thermal contact resistances. Using an AC electrical measurement, two models for a thermoelectric module have been developed utilizing electrical circuits for both the thermal and electrical characteristics of the module. Measurements were taken over the frequency range of 1mHz to 500Hz using lock-in amplifiers. We present data showing the extraction of ZT from such measurements on commercially available modules utilizing both the magnitude and phase of the measured impedance. Here we extend upon a simple RC equivalent circuit model by utilizing transmission line theory in electrical circuits to explain the thermal activity in a thermoelectric module. This model includes all components of a module such as nickel traces and ceramic end caps, and makes use of their corresponding thermal conductivities, thermal capacitance, and density. This model can then be applied to pn unicouples in either a standard or inline configuration, and to individual p or n legs of the module. Data is presented showing the advantages of both models. Measurements on new thermoelectric materials and modules are also presented.

Original languageEnglish
Title of host publicationMaterials Research Society Symposium Proceedings
Pages425-430
Number of pages6
Volume886
Publication statusPublished - 2006
Event2005 Materials Research Society Fall Meeting - Boston, MA, United States
Duration: Nov 28 2005Dec 1 2005

Other

Other2005 Materials Research Society Fall Meeting
CountryUnited States
CityBoston, MA
Period11/28/0512/1/05

Fingerprint

Transmission line theory
Networks (circuits)
Contact resistance
Nickel
Equivalent circuits
Thermal conductivity
Capacitance
Hot Temperature

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials

Cite this

Downey, A. D., Timm, E., Poudeu, P. F. P., Kanatzidis, M. G., Shock, H., & Hogan, T. P. (2006). Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements. In Materials Research Society Symposium Proceedings (Vol. 886, pp. 425-430)

Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements. / Downey, Adam D.; Timm, Edward; Poudeu, Pierre F P; Kanatzidis, Mercouri G; Shock, Harold; Hogan, Timothy P.

Materials Research Society Symposium Proceedings. Vol. 886 2006. p. 425-430.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Downey, AD, Timm, E, Poudeu, PFP, Kanatzidis, MG, Shock, H & Hogan, TP 2006, Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements. in Materials Research Society Symposium Proceedings. vol. 886, pp. 425-430, 2005 Materials Research Society Fall Meeting, Boston, MA, United States, 11/28/05.
Downey AD, Timm E, Poudeu PFP, Kanatzidis MG, Shock H, Hogan TP. Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements. In Materials Research Society Symposium Proceedings. Vol. 886. 2006. p. 425-430
Downey, Adam D. ; Timm, Edward ; Poudeu, Pierre F P ; Kanatzidis, Mercouri G ; Shock, Harold ; Hogan, Timothy P. / Application of transmission line theory for modeling of a thermoelectric module in multiple configurations for AC electrical measurements. Materials Research Society Symposium Proceedings. Vol. 886 2006. pp. 425-430
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