Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme

In order to master the use of electric machines and to minimize its thermal losses, the knowledge of thermo-physical properties of metallic materials that constitute them, is important. This study deals with the estimation of several thermal properties in a metallic medium. The system under investig...

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Main Authors: A. Sakly, A. Jemni, P. Lagonotte, D. Petit
Format: Article
Language:English
Published: Isfahan University of Technology 2011-01-01
Series:Journal of Applied Fluid Mechanics
Subjects:
Online Access:http://jafmonline.net/JournalArchive/download?file_ID=15313&issue_ID=206
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spelling doaj-807b6386d3e9493ab5f2a579584c3ddc2020-11-24T23:56:27ZengIsfahan University of Technology Journal of Applied Fluid Mechanics1735-36452011-01-01442329.Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures MeasuremeA. SaklyA. JemniP. LagonotteD. PetitIn order to master the use of electric machines and to minimize its thermal losses, the knowledge of thermo-physical properties of metallic materials that constitute them, is important. This study deals with the estimation of several thermal properties in a metallic medium. The system under investigation is a rectangular metallic plate, which is submitted to an homogenous heat power on the volume sample. The direct problem simulates numerically the system and the experimental conditions. An iterative procedure, based on minimizing a sum of squares norm with the Levenberg-Marquardt method, is used to solve the inverse problem. In order to characterize the thermal behavior of metallic materials, an experimental set-up was built. The measured temperature data using infrared camera are used to estimate the effective thermal conductivity, the effective volumetric heat capacity as well as the global heat transfer coefficient with the environment.http://jafmonline.net/JournalArchive/download?file_ID=15313&issue_ID=206Thermal properties Numerical simulation Experimental characterization
collection DOAJ
language English
format Article
sources DOAJ
author A. Sakly
A. Jemni
P. Lagonotte
D. Petit
spellingShingle A. Sakly
A. Jemni
P. Lagonotte
D. Petit
Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
Journal of Applied Fluid Mechanics
Thermal properties
Numerical simulation
Experimental characterization
author_facet A. Sakly
A. Jemni
P. Lagonotte
D. Petit
author_sort A. Sakly
title Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
title_short Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
title_full Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
title_fullStr Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
title_full_unstemmed Estimation of the Effective Thermal Properties in a Metallic Medium by an Inverse Technique using Temperatures Measureme
title_sort estimation of the effective thermal properties in a metallic medium by an inverse technique using temperatures measureme
publisher Isfahan University of Technology
series Journal of Applied Fluid Mechanics
issn 1735-3645
publishDate 2011-01-01
description In order to master the use of electric machines and to minimize its thermal losses, the knowledge of thermo-physical properties of metallic materials that constitute them, is important. This study deals with the estimation of several thermal properties in a metallic medium. The system under investigation is a rectangular metallic plate, which is submitted to an homogenous heat power on the volume sample. The direct problem simulates numerically the system and the experimental conditions. An iterative procedure, based on minimizing a sum of squares norm with the Levenberg-Marquardt method, is used to solve the inverse problem. In order to characterize the thermal behavior of metallic materials, an experimental set-up was built. The measured temperature data using infrared camera are used to estimate the effective thermal conductivity, the effective volumetric heat capacity as well as the global heat transfer coefficient with the environment.
topic Thermal properties
Numerical simulation
Experimental characterization
url http://jafmonline.net/JournalArchive/download?file_ID=15313&issue_ID=206
work_keys_str_mv AT asakly estimationoftheeffectivethermalpropertiesinametallicmediumbyaninversetechniqueusingtemperaturesmeasureme
AT ajemni estimationoftheeffectivethermalpropertiesinametallicmediumbyaninversetechniqueusingtemperaturesmeasureme
AT plagonotte estimationoftheeffectivethermalpropertiesinametallicmediumbyaninversetechniqueusingtemperaturesmeasureme
AT dpetit estimationoftheeffectivethermalpropertiesinametallicmediumbyaninversetechniqueusingtemperaturesmeasureme
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