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Numerical Study of Classical and Composite Solar Walls by TRNSYS

Journal of Thermal Science 2007年第1期16卷 46-55页

作者： Jibao SHEN Stéphane LASSUE laurent zalewski Dezhong HUANG School of Engineering Shaoxing College of Arts and Sciences Shaoxing University Zhejiang 312000 China Laboratoire d＇Artois de MéThermique et Instrumentation （LAMTI） Faculté des Sciences Appliquées Univeristé d＇Artois 62400 Béthune France

The laboratory LAMTI has worked for several years on the study and the optimization of the thermal performances of passive solar walls like solar Trombe wall. These components of the buildings envelope have very complex behaviour because they are the seat of various coupled heat transfers modes and are subjected to the random variations of the meteorological parameters. Using the finite difference method （FDM） and starting from experimental results recorded during several years, a simulation model was developed and validated concerning the ＂composite＂ Trombe wall. In order to make this work more accessible to the community of the heat engineers, it appears interesting to build a simulation model which can be integrated into the library of elements of the TRNSYS software. A ＂Type＂ was thus carried out and the results obtained compared with those of the FDM model. In this work we compare the obtained results with these two numerical ways. The assumptions and the results of simulations are also confronted with those of an existing module in TRNSYS （Type 36） established for the ＂classical＂ Trombe wall. The study shows that the models that we developed are very precise and that certain assumptions must be used with a lot of precautions. The advantages of the composite Trombe solar wall compared to the Classical Trombe wall are highlighted for cold and/or cloudy climates.

关键词： Trombe wall solar wall classical wall composite wall finite difference method TRNSYS

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Designing an Automatic Control System for the Improved Functioning of a Solar Wall with Phase Change Material (PCM)

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Open Journal of Energy Efficiency 2016年第1期5卷 19-29页

作者： Patrick Favier laurent zalewski Stephane Lassue Sohail Anwar IUT Bethune Université d’ Artois Arras France LGCgE Laboratory Université d’ Artois Arras France Department of Engineering Altoona College Pennsylvania State University Altoona PA USA

Solar walls constitute an important green architectural feature that positively contributes to energy saving in buildings. Different configurations may be proposed, such as, solar wall with Phase Change Material (PCM), composite solar wall, photovoltaic solar wall, zigzag solar wall, and solar hybrid wall. Being environmentally friendly, these passive solar components can provide thermal comfort and help save energy. Their disadvantages include principally unpredictable heat transfer, heat losses by night for some systems or inverse thermo-siphon phenomenon. Appropriate energy management techniques can be used to control and optimize the performances of solar walls. An experimental study for energy management of a PCM based solar wall is described in this paper. The experimental results show the effectiveness of the proposed automatic control system in regulating the capture of solar energy.

关键词： Solar Walls Solar Energy Energy Storage Phase Change Material Energy Management

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