Numerical model and experimental validation of heat storage with phase change materials

This paper describes the numeric model developed to simulate heat transfer in phase change materials (PCM) plunged in water tank storage. This model, based on the enthalpy approach, takes into account the conduction and the convection into PCM as well as at the interface between PCM and water of the...

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Bibliographic Details
Published in:Energy and buildings 2007-10, Vol.39 (10), p.1065-1072
Main Authors: Bony, Jacques, Citherlet, Stéphane
Format: Article
Language:English
Subjects:
Applied sciences
Building technical equipments
Buildings
Buildings. Public works
Computation methods. Tables. Charts
Environmental engineering
Exact sciences and technology
Heat transfer
Latent heat
PCM
Solar energy
Structural analysis. Stresses
TRNSYS
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Summary:This paper describes the numeric model developed to simulate heat transfer in phase change materials (PCM) plunged in water tank storage. This model, based on the enthalpy approach, takes into account the conduction and the convection into PCM as well as at the interface between PCM and water of the storage. Furthermore, hysterisis and subcooling are also included. This model has been implemented in an existing TRNSYS type of water tank storage. It allows the simulation of a water storage tank filled with PCM modules made of different materials and different shapes such as cylinders, plates or spheres bed. Comparisons between measurements and simulations has been undertake to evaluate the potential of this model.
ISSN:0378-7788
DOI:10.1016/j.enbuild.2006.10.017