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

TitreFeasibility Study and Optimal Design of an Experimental Bench for Identification of Liquid Thermal Diffusivity
Type de publicationArticle de revue
AuteurPerez, Laetitia , Autrique, Laurent
EditeurInstitute of Electrical and Electronics Engineers
TypeArticle scientifique dans une revue à comité de lecture
Pagination2739 - 2748
Titre de la revueIEEE Transactions on Instrumentation and Measurement
Mots-clésengineering, experimental, Face, feasibility, Frequency, Glass, Heating, Mathematical, nondestructive, Optimal, Parametric, phase, photoelectric, photopyroelectric, pyroelectric, Sensitivity, Steel, Thermal, trilayer, wave
Résumé en anglais

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.

URL de la noticehttp://okina.univ-angers.fr/publications/ua1519
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