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Document IIF

Étude numérique de l’influence de la stratification dans un réservoir d’eau chaude pour l’amélioration de l’inertie thermique par le stockage d’énergie thermique issu de la chaleur latente. 

Influence of the stratification in a hot water tank for thermal inertia improvment by latent heat thermal energy storage: a numerical study.

Numéro : 0011

Auteurs : IUNG A., SIMO TALA J. V., BAHRANI S. A., LAGARDERE DELEGLISE M.

Résumé

The present study focusses on a parametric analysis on a composite-PCM structure aimed at enhancing the thermal storage capacity and inertia of a hot water tank. The inner surface of the tank comprises a conductive material (stainless steel) in direct contact with the stored hot water, while the outer surface is constructed using a combination of PCM and insulating material (Glass/PP composite). A constant temperature is considered on the conductive material surface, while the part exposed to the surroundings is assumed to be adiabatic. An organic PCM in solid-liquid state, specifically Rubitherm paraffin RT55, has been selected for this study. Previous research has identified PCM dimensions where the melting time approaches a constant value. The objective of this study is to investigate the impact of various temperature gradients on these parameters. Furthermore, the study has identified the presence of a maximum critical Fourier number and an optimal shape factor as the Stefan number tends towards infinity.

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Format PDF

Pages : 8 p.

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Détails

  • Titre original : Influence of the stratification in a hot water tank for thermal inertia improvment by latent heat thermal energy storage: a numerical study.
  • Identifiant de la fiche : 30032364
  • Langues : Anglais
  • Sujet : Technologie
  • Source : 14th IIR Conference on Phase-Change Materials and Slurries for Refrigeration and Air Conditioning. Proceedings:  Paris France, May 29-31, 2024.
  • Date d'édition : 31/05/2024
  • DOI : http://dx.doi.org/10.18462/iir.pcm.2024.0011

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