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Article dans une revue

Feasibility Study and Optimal Design of an Experimental Bench for Identification of Liquid Thermal Diffusivity

Abstract :

Expertise of innovative materials by nondestructive techniques is a key goal in process engineering development. In this context, if identification of thermal diffusivity of liquid is a crucial requirement to develop a reliable mathematical model of knowledge, it is essential to propose a complete and valid methodology. Based on the analysis of thermal wave propagation (generated by a periodic excitation), an experimentation is developed in order to avoid the implementation of a pyroelectric sensor required in usual photopyroelectric techniques. The proposed approach is investigated in a trilayer system. Theoretical aspects of the identification of thermal parameters in the frequency domain are presented. A feasibility study is discussed in order to justify this approach for liquids. A sensitivity analysis is implemented in a particular case to provide an optimal experimental bench. Finally, experimental results for several liquids are presented and discussed.

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Article dans une revue
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https://hal.univ-angers.fr/hal-03430136
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Soumis le : mardi 16 novembre 2021 - 09:46:06
Dernière modification le : mercredi 27 avril 2022 - 03:55:08

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Laetitia Perez, Laurent Autrique. Feasibility Study and Optimal Design of an Experimental Bench for Identification of Liquid Thermal Diffusivity. IEEE Transactions on Instrumentation and Measurement, Institute of Electrical and Electronics Engineers, 2012, 61 (10), pp.2739 - 2748. ⟨10.1109/TIM.2012.2193697⟩. ⟨hal-03430136⟩

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