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Une méthode non paramétrique pour l'évaluation des fonctions enthalpie-température des matériaux à changement de phase à forme stabilisée.

A non-parametric method for estimating enthalpy-temperature functions of shape-stabilized phase-change materials.

Auteurs : DEL BARRIO E. P., DAUVERGNE J.L.

Type d'article : Article

Résumé

A method for thermodynamic characterization of shape-stabilized phase change materials (PCM) based on one-single sample and one-single experiment has been proposed. The simplicity of the experimental device is comparable to that of the T-History method. However, instead of simple energy balances as in T-History method, a numerical heat transfer model is used to retrieve the whole set of parameters/functions characterizing the PCM from temperature measurements at one-single point within the PCM. An efficient inversion technique has been proposed for that. Its most striking feature is that it allows non-parametric identification of the enthalpy-temperature function in an easy way. Such a function is retrieved by solving a problem of nonhomogeneous heat source term estimation by inversion of a linear heat conduction model.

Détails

  • Titre original : A non-parametric method for estimating enthalpy-temperature functions of shape-stabilized phase-change materials.
  • Identifiant de la fiche : 30001171
  • Langues : Anglais
  • Source : International Journal of Heat and Mass Transfer - vol. 54 - n. 5-6
  • Date d'édition : 02/2011
  • DOI : http://dx.doi.org/10.1016/j.ijheatmasstransfer.2010.10.025

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