Correct use of the transient hot‑wire technique for thermal conductivity measurements on solids
Correct use of the transient hot‑wire technique for thermal conductivity measurements on solids
The paper outlines the essential conditions required to achieve measurements of low uncertainty for the thermal conductivity of solids using the transient hot-wire technique. The paper aims to provide rigorous guidelines for the correct implementation of this technique for solids. For solid materials, the study shows that an uncertainty of as little as ± 1 % is attainable across a broad temperature range by employing the finite element method to solve the pertinent heat transfer equations within the experimental setup. Importantly, the paper discusses the necessary steps to verify that the experimental conditions conform to the theoretical model.
contact resistance, finite element method, low uncertainty, solids, thermal conductivity, transient hot wire
Antoniadis, Konstantinos D.
1afb9725-b0b8-4875-a0c3-28c5887822d4
Assael, Marc J.
52df0025-715b-4dd9-a59d-02447498348c
Wakeham, William A.
88549729-a39a-497f-b112-feaa6be2c449
28 November 2024
Antoniadis, Konstantinos D.
1afb9725-b0b8-4875-a0c3-28c5887822d4
Assael, Marc J.
52df0025-715b-4dd9-a59d-02447498348c
Wakeham, William A.
88549729-a39a-497f-b112-feaa6be2c449
Antoniadis, Konstantinos D., Assael, Marc J. and Wakeham, William A.
(2024)
Correct use of the transient hot‑wire technique for thermal conductivity measurements on solids.
International Journal of Thermophysics, 45, [175].
(doi:10.1007/s10765-024-03460-x).
Abstract
The paper outlines the essential conditions required to achieve measurements of low uncertainty for the thermal conductivity of solids using the transient hot-wire technique. The paper aims to provide rigorous guidelines for the correct implementation of this technique for solids. For solid materials, the study shows that an uncertainty of as little as ± 1 % is attainable across a broad temperature range by employing the finite element method to solve the pertinent heat transfer equations within the experimental setup. Importantly, the paper discusses the necessary steps to verify that the experimental conditions conform to the theoretical model.
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Accepted/In Press date: 31 October 2024
Published date: 28 November 2024
Keywords:
contact resistance, finite element method, low uncertainty, solids, thermal conductivity, transient hot wire
Identifiers
Local EPrints ID: 498211
URI: http://eprints.soton.ac.uk/id/eprint/498211
ISSN: 0195-928X
PURE UUID: ecc8539f-7026-48ef-93a4-fc2192a27f61
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Date deposited: 12 Feb 2025 17:46
Last modified: 21 Aug 2025 03:29
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Contributors
Author:
Konstantinos D. Antoniadis
Author:
Marc J. Assael
Author:
William A. Wakeham
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