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  • 1 Université Claude Bernard Lyon 1 Laboratoire d'Analyse Numérique, URA 740 43 Boulevard du Onze Novembre 1918 F-69622 Villeurbanne Cedex France
  • 2 Université Claude Bernard Lyon 1 Laboratoire des Matériaux et Procédés Catalytiques, Lace, Escil 43 Boulevard du Onze Novembre 1918 F-69622 Villeurbanne Cedex France
  • 3 Université Claude Bernard Lyon 1 Laboratoire de Chimie Appliquée au Génie Chimique, URA 470 43 Boulevard du Onze Novembre 1918 F-69622 Villeurbanne Cedex France
  • 4 Asian Institute of Technology Energy Division G.P.O. Box 2754 10501 Bangkok Tailand
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Abstract  

This work presents the modelling of heat transfer in a polymer sample submitted to a microwave field in the quartz column of a dilatometer surrounded by vacuum to avoid convection. The temperature rise is studied in transient state by the finite element method. It is assumed that a uniform and constant heat production is maintained in the entire volume of the sample. It is shown that it is possible to design the set composed of the sample and of the column to achieve a nearly uniform temperature in the whole volume of the sample while its temperature is raised from 20 to 250°C at a heating rate of 5 deg·min−1.