A New Numerically Improved Transient Technique for Measuring Thermal Properties of Anisotropic Materials-Reference-Cited by-同舟云学术

A New Numerically Improved Transient Technique for Measuring Thermal Properties of Anisotropic Materials

Published:2024-09-10 Issue:3 Volume:4 Page:394-406
ISSN:2673-7264
Container-title:Thermo
language:en
Short-container-title:Thermo

Author:

Malinarič Svetozár¹,Bokes Peter²^ORCID,Bulatovič Goran²

Affiliation:

1. Department of Physics, Constantine the Philosopher University in Nitra, Trieda Andreja Hlinku 1, 949 74 Nitra, Slovakia

2. Institute of Nuclear and Physical Engineering, Faculty of Electrical Engineering and Information Technology, Slovak University of Technology, Ilkovičova 3, 841 04 Bratislava, Slovakia

Abstract

A new transient technique of the thermal conductivity and diffusivity measurement for anisotropic materials is presented and validated. It is based on measuring the through-plane properties using the extended dynamic plane source (EDPS) method and in-plane conductivity employing the transient plane source (TPS) and modified dynamic plane source (MDPS) methods. The key advantage of this technique is that only one pair of specimens is required for measurements. While the EDPS method is implemented on real measurements, the TPS and MDPS are applied to the finite elements method (FEM) simulation of the experiment. The accuracy of the results is enhanced by the application of the FEM and is better than 1% for materials with through-plane conductivity of less than 2 W m−1 K−1 and a specimen thickness of 9 mm.

Publisher

MDPI AG

Link

https://www.mdpi.com/2673-7264/4/3/21/pdf

Reference30 articles.

1. Svehla, G. (1990). Pulse method of measuring basic thermophysical parameters. Comprehensive Analytical Chemistry, Elsevier. [12th ed.].

2. Gaal, P.S., and Apostolescu, D.E. (1999). Review of several dynamic methods of measuring thermophysical parameters. Proceedings of 24th International Conference on Thermal Conductivity/12th International Thermal Expansion Symposium, 1999, Technomic Publishing Company.

3. A step-wise method for measuring thermophysical parameters of materials;Meas. Sci. Technol.,2000

4. Transient Hot Strip (THS) Method: Uncertainty Assessment;Hammerschmidt;Int. J. Thermophys.,2000

5. Transient Hot Wire (THW) Method: Uncertainty Assessment;Hammerschmidt;Int. J. Thermophys.,2000