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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Isfahan University of Technology
2011-01-01
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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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1725458458897022976 |