Maîtrise de la thermique des fours de maintien en fonderie

Abstract : Vacuum holding induction furnaces are used for the manufacturing of turbine blades by loss wax foundry process. Heat transfer control in a holding furnace is crucial to ensure the quality of manufacturing. This work has 3 major parts, which are the detailed modelling, reduced modelling and experiments. An axyisymmetric furnace and its load have been numerically modelled using FlexPDE and COMSOL Multiphysics, finite element codes. Modelling takes as inputs the electric power consumed by inductors and gives the temperature field in the heating module. The studied reduced models are phyisical convolutive models (enthalpic (0D), 1 dimension analytical (1D)) and parametric like AutoRegressive with eXogeneous inputs (ARX). ARX models have been compared to convolutive models (identification, validation). The goal is to get temperatures in the heating module without local presence of physical sensors (virtual sensor). Detailed and reduced models have been compared to experiments on the furnace. This last part is not described in this document
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https://hal.univ-lorraine.fr/tel-01935295
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Submitted on : Monday, November 26, 2018 - 3:49:47 PM
Last modification on : Tuesday, November 27, 2018 - 1:22:21 AM

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  • HAL Id : tel-01935295, version 1

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Thomas Loussouarn. Maîtrise de la thermique des fours de maintien en fonderie. Thermique [physics.class-ph]. Université de Lorraine, 2018. Français. ⟨NNT : 2018LORR0105⟩. ⟨tel-01935295⟩

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