<abstract xmlns="http://www.w3.org/1999/xhtml">

<p>This paper presents a discussion on the accuracy of the method of determining the thermal diffusivity of solids using the solution of the inverse heat conduction equation. A new measurement data processing procedure was proposed to improve the effectiveness of the method. Using the numerical model, an analysis of the sensitivity of the method of thermal diffusivity determination to changes in operational and environmental parameters of the test was carried out. The obtained results showed that the method was insensitive to the parameters of the thermal excitation impulse, the thickness of the tested sample, and the significant influence of convection cooling on its accuracy. The work was completed with the formulation of general conclusions concerning the conditions for determining the thermal diffusivity of materials with the use of the described method.</p>
</abstract>

This paper presents a discussion on the accuracy of the method of determining the thermal diffusivity of solids using the solution of the inverse heat conduction equation. A new measurement data processing procedure was proposed to improve the effectiveness of the method. Using the numerical model, an analysis of the sensitivity of the method of thermal diffusivity determination to changes in operational and environmental parameters of the test was carried out. The obtained results showed that the method was insensitive to the parameters of the thermal excitation impulse, the thickness of the tested sample, and the significant influence of convection cooling on its accuracy. The work was completed with the formulation of general conclusions concerning the conditions for determining the thermal diffusivity of materials with the use of the described method.

Determination of Thermal Diffusivity Values Based on the Inverse Problem of Heat Conduction – Numerical Analysis

Acta Mechanica et Automatica

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

This paper presents a discussion on the accuracy of the method of determining the thermal diffusivity of solids using the solution of the inverse heat...

Determination of Thermal Diffusivity Values Based on the Inverse Problem of Heat Conduction – Numerical Analysis

Published Online: Dec 15, 2022

Page range: 399 - 407

Received: Aug 03, 2022

Accepted: Sep 03, 2022

DOI: https://doi.org/10.2478/ama-2022-0048

Keywords
thermal diffusivity, inverse heat conduction problem, impulse heating, finite element analysis

© 2022 Adam Adamowicz, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Determination of Thermal Diffusivity Values Based on the Inverse Problem of Heat Conduction – Numerical Analysis

Published Online: Dec 15, 2022

Page range: 399 - 407

Received: Aug 03, 2022

Accepted: Sep 03, 2022

DOI: https://doi.org/10.2478/ama-2022-0048

Keywordsthermal diffusivity, inverse heat conduction problem, impulse heating, finite element analysis

© 2022 Adam Adamowicz, published by Sciendo

This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 3.0 License.

Keywords
thermal diffusivity, inverse heat conduction problem, impulse heating, finite element analysis