文章基本信息

标题：An experimental and numerical simulation study of an active solar wall enhanced with phase change materials
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作者：Dionysios I. Kolaitis ; Roberto Garay Martinez ; Maria A. Founti 等
期刊名称：Journal of Facade Design and Engineering
印刷版ISSN：2213-302X
电子版ISSN：2213-3038
出版年度：2015
卷号：3
期号：1
页码：71-80
DOI：10.3233/FDE-150027
摘要：Solar walls can be used to increase the overall energy efficiency of a building. Phase Change Materials (PCM) are capable of increasing the effective thermal mass of building elements, thus decreasing the overall energy consumption. Recently, the incorporation of PCM in a solar wall has been proposed, aiming to increase the total energy efficiency of the system. The main scope of this work is to investigate the thermal behaviour of a PCM-enhanced solar wall (PCMESW), using experimental and numerical simulation techniques. A prototype PCMESW is installed in a large-scale test facility and is exposed to dynamically changing climate conditions. A broad range of sensors, used to monitor the time-evolution of several important physical parameters, is employed to assess the dynamic response of the PCMESW. In addition, a Computational Fluid Dynamics tool is used to numerically investigate the thermal behaviour of the PCMESW prototype. Predictions of the developing flow- and thermal-field in the PCMESW’s air cavity are validated by means of comparison with the obtained measurements; in general, good levels of agreement are observed. Results of the numerical simulations may support the design optimization process of innovative PCMESW systems.
关键词：Solar wall (SW); Trombe wall; Phase Change Materials (PCM); experimental data; CFD; simulation; building energy performance; energy savings