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Modelling constructions with phase-change materials in dynamic building simulation programs.

Auteurs : SCHULTZ J. M.

Type d'article : Article

Résumé

There is a growing interest in the use of phase-change materials (PCM) in building constructions to add thermal mass in an
otherwise thermally light building. Compared to common thermally heavy mass construction materials, PCM heat storage capacity
is a discontinuous function of temperature around the melting point, which makes it difficult to model in most building simulation
software tools. A method to estimate an equivalent thermal mass construction element suited for building simulation software
is described. The method is based on setting up a set of linear equations for a simple dynamic simulation of room air temperature
variation for a case with PCM . The equivalent material for building simulation is defined by fitting the volumetric heat capacity
until a good match of key parameters as peak room temperature has been found. A worked-through example is given.

The mathematical expression is given in 10 - Appendix.

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Format PDF

Pages : 44-50

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    20 €

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    15 €

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Détails

  • Titre original : Modelling constructions with phase-change materials in dynamic building simulation programs.
  • Identifiant de la fiche : 30025298
  • Langues : Anglais
  • Sujet : Environnement
  • Source : EcoLibrium - vol. 17 - n. 10
  • Date d'édition : 11/2018

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