A new simple method is presented for measuring thermal diffusivity and Biot number in cylindrical samples made of relatively highly conducting materials, subjected to laminar air flow. The basic idea is a heat source in the middle section of the sample, acting also as a thermocouple; only one additional temperature sensor at the cylinder basis is required to give all information, without requiring any hypothesis about the effective time dependence of the heat source.
Thermal diffusivity and Biot number: a new experimental method / Omini, M; Sparavigna, Amelia Carolina; Strigazzi, A.. - In: APPLIED PHYSICS. A, SOLIDS AND SURFACES. - ISSN 0721-7250. - STAMPA. - 50:1(1990), pp. 35-37. [10.1007/BF00323951]
Thermal diffusivity and Biot number: a new experimental method
SPARAVIGNA, Amelia Carolina;
1990
Abstract
A new simple method is presented for measuring thermal diffusivity and Biot number in cylindrical samples made of relatively highly conducting materials, subjected to laminar air flow. The basic idea is a heat source in the middle section of the sample, acting also as a thermocouple; only one additional temperature sensor at the cylinder basis is required to give all information, without requiring any hypothesis about the effective time dependence of the heat source.File | Dimensione | Formato | |
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https://hdl.handle.net/11583/1405990
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