期刊
ENERGY AND BUILDINGS
卷 54, 期 -, 页码 141-153出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.enbuild.2012.07.036
关键词
Building envelope; Numerical model; Thermal simulation; Responsive building element; Advanced glazing; PCM
资金
- Regione Piemonte, Skyline - Strutture per l'Architettura srl
- MBT srl
The adoption of Phase Change Materials (PCMs) in building components is an up-to-date topic and a relevant number of research activities on this issue is currently on the way. A particular application of PCMs in the building envelope focuses on the integration of such a kind of material into transparent envelope components. A numerical model that describes the thermo-physical behaviour of a PCM layer in combination with other transparent materials (i.e. glass panes) is developed to perform numerical analyses on various PCM glazing systems configurations. The paper illustrates the structure of the model, the main equations implemented and the hypotheses adopted for the model development. The comparison between numerical simulations and experimental data of a simple PCM glazing configuration is also presented to show the potentials and the limitations of the numerical model. While a good agreement between simulations and experimental data can be shown for the surface temperature of the glazing, the comparison between simulated and measured transmitted irradiances and heat fluxes does not always reach the desired accuracy. However, the numerical tool seems to predict well the thermo-physical behaviour of the system and may therefore represent a good starting point for simulations on different configurations of PCM glazing systems. (C) 2012 Elsevier B.V. All rights reserved.
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