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Enhanced Transient Hot Bridge Method Using a Finite Element Analysis

  • J. GaiserEmail author
  • M. Stripf
  • F. Henning
Article
  • 51 Downloads

Abstract

This paper presents a new enhanced measuring procedure to determine the direction-dependent thermal diffusivity of anisotropic materials using the transient hot bridge technique. Two measurements with different sensor orientation are performed to ascertain the thermal diffusivities in the three spatial directions. The analysis of the measurement signals combines an analytical evaluation with a finite-element post-diction of the signal. The measurement uncertainty is assessed to 4 %–10 %.

Keywords

Anisotropic materials Finite element analysis Transient hot bridge Thermal diffusivity Thermal conductivity 

Notes

Acknowledgements

This research was supported by the German Federal Ministry of Education and Research, research Grant (13FH009PX5).

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Mechanical EngineeringUniversity of Applied Sciences KarlsruheKarlsruheGermany
  2. 2.Institute of Vehicle System TechnologyKarlsruhe Institute of TechnologyKarlsruheGermany

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