Numerical study of classical and composite solar walls by TRNSYS

Shen, Jibao; Lassue, Stéphane; Zalewski, Laurent; Huang, Dezhong

doi:10.1007/s11630-007-0046-x

Cited by 41 publications

(16 citation statements)

References 5 publications

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“…In addition to being environmentally friendly, solar walls can enhance thermal comfort and save energy even in arid and desert areas (Hassid, 2011). Solar walls display highly complex behaviour because their operation involves different coupled heat-transfer modes and depends on certain meteorological variables (Shen et al, 2007a). Solar walls suffer from four shortcomings.…”

Section: Advantages and Disadvantage Of Solar Wallsmentioning

confidence: 99%

A state of the art review of solar walls: Concepts and applications

Saadatian

Haw

Sopian

et al. 2013

Journal of Building Physics

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Sustainable energy system design offers credible and innovative strategies to overcome environmental energy crises. Solar walls offer feasible technique for the exploitation of directional flow of heat in buildings. This article reviewed state-of-the-art concepts, applications and significance of solar walls for energy savings in buildings. Detailed operational framework of various solar-wall configurations, technology and efficiency as building component was discussed. Need for this sustainable energy design in buildings and constraints associated with their realisation were reported to aid proposed future research work.

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Section: Advantages and Disadvantage Of Solar Wallsmentioning

confidence: 99%

A state of the art review of solar walls: Concepts and applications

Saadatian

Haw

Sopian

et al. 2013

Journal of Building Physics

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“…Simultaneous measurements of velocity and of surfaces temperature at the upper and the lower level of the massive wall allowed us to quantify the heat gain given by the wall. [18][19][20] show the evolution of the convective, the conductive flux, and the test room temperature for the three studied periods. At the beginning of the day, the test room temperature falls until the rise of the sun.…”

Section: Heat Transmission Analysismentioning

confidence: 99%

Thermal performance of a passive test room with a Trombe wall in Tunisia

Dimassi

Dehmani

2012

Journal of Renewable and Sustainable Energy

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A great amount of energy consumption occurs in buildings due to indoor heating, cooling, ventilation, and lighting. Among these, the energy consumed for heating in buildings has the biggest proportion of consumption. So, the use of renewable sources of energy such as solar energy is the ideal solution to reduce the energy bill. In this context, proper structure elements and architecture need to be considered for the utilization of solar energy in passive ways and for decreasing energy losses to a great extent. The Trombe wall is an excellent passive solar system which relies on natural driving forces and on storing energy. This paper reports on an experimental investigation of a test room containing a Trombe wall in Borj Cedria Tunisia and compares the wall performance for different periods of the year (autumn, winter, and spring). In this study, the phenomenon of natural convection has been highlighted with accuracy measurement and the thermal behavior of the wall was also investigated. In consequence of the experimental study, the convective and the conductive flux were quantified and the thermal efficiency of the wall during the studied periods was estimated. From the comparison of results, the best efficiency of the wall equal to 45% was obtained in the winter period. The operating efficiency is also good in autumn period and the wall offers a good potential of heating. V C 2012 American Institute of Physics.

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“…The efficiency with which TW uses the transferred heat may vary depending on thermophysical parameters and climatic conditions. It is mostly determined with the use of numerical models that are based either on the finite element method FEM or finite difference method DEM [1][2][3]. In the papers [4,5], the calculation of the efficiency of various types of walls was carried out in field conditions either with the use of speciallyprepared research chambers or experimental houses [6].…”

Section: Introductionmentioning

confidence: 99%

Simulation of modified Trombe wall

Szyszka

2018

E3S Web Conf.

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Passive systems are becoming increasingly popular among designers, which is reflected in their frequent use in the construction of modern buildings. The prevailing material in façade design is glass which enables i.a. photothermal conversion of solar energy either in the so-called direct systems or in one of a number of the collector-and-storage Trombe wall variants. In order to estimate how the aforementioned passive solutions affect the energy balance of a building, the efficiency of such solutions needs to be determined first. This paper presents the research proposal that would use a simple-structure laboratory simulator. The proposed method is based on the analogy of supplying heat into the TW itself with an internal heat source. In order to simulate the absorption of solar radiation that takes place in the absorber, the heat was produced by the heating cable embedded in such an absorber. The results of tests carried out according to one of the Design of Experiments (DOE) methods enabled the development of an empirical model showing the operation efficiency of the originally modified Trombe wall.

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Numerical study of classical and composite solar walls by TRNSYS

Cited by 41 publications

References 5 publications

A state of the art review of solar walls: Concepts and applications

A state of the art review of solar walls: Concepts and applications

Thermal performance of a passive test room with a Trombe wall in Tunisia

Simulation of modified Trombe wall

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