Thermal Efficiency of a Solar Wall in Tunisia

Passive solar heating systems are very attractive because of their exploitation of solar energy which is available and abundant. A passive solar system contributes with storage and direct gain to heat a building without the use of mechanical equipment. This investigation is a verification of the Trombe wall efficiency in Tunisia via an experimental study on a real building with a specificity of the local weather. The experimental study was carried on a south wall under real scale in the laboratory of thermal processes in the Center of Research and Technology of Energy (CRTEn) in Borj Cedria. During two different winter periods (January and April), the thermal performance of the wall was investigated using the collected data of velocity and temperature at different positions of the wall. The heat gain through the wall was calculated and the efficiency was found to decrease from January period (45%) to April period (31.7%). The results show that the Trombe wall ensures free heat in winter and can greatly increase the energy efficiency of a building. Thus, the Trombe wall integration to the building design offers many opportunities to take advantage of the Tunisian moderate climate.

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Numerical analysis of the thermal behavior of building integrated hybrid solar wall

Mechanics and Mechanical Engineering ◽

10.2478/mme-2019-0020 ◽

2019 ◽

Vol 23 (1) ◽

pp. 144-149

Author(s):

Djelaili Abdelbaki ◽

Korti Abdel Ilah Nabil

Keyword(s):

Indoor Air ◽

Three Dimensional ◽

Building Design ◽

3D Analysis ◽

Three Dimensional Model ◽

Sustainable Building ◽

Proposed Model ◽

Trombe Wall ◽

Solar Wall ◽

Building Designs

Abstract Building designers have to think about new strategies to achieve the best sustainable building designs. Well-planned passive solar heating strategies in building design may reduce a building’s energy consumption significantly. In this paper, a proposed design of the south façade of a room by integrating a hybrid solar wall and a window to passively heat a room is studied. The simulations for the three-dimensional model of BIPV Trombe wall system were carried out for December 10th, 2015. The temperature and velocity distribution of indoor air in different positions inside the room are obtained from the simulation results. The obtained results show that the temperature difference between the inlet and the outlet of the solar wall can reach 9°C. The 3D analysis of the proposed model clearly shows that the window’s thermal effect on the passive heating cannot be neglected. Meanwhile, the simulation’s daily electrical efficiency conversion and average indoor air temperature of this system can reach 18% and 28° C, respectively for maximum solar radiation of 470 W/m2.

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Experimental study of small-scale passive solar wall module with phase change material and Fresnel lens

Energy Procedia ◽

10.1016/j.egypro.2018.07.048 ◽

2018 ◽

Vol 147 ◽

pp. 467-473

Author(s):

Toms Mols ◽

Kristiana P. Dzene ◽

Ruta Vanaga ◽

Ritvars Freimanis ◽

Andra Blumberga

Keyword(s):

Experimental Study ◽

Phase Change ◽

Phase Change Material ◽

Fresnel Lens ◽

Small Scale ◽

Passive Solar ◽

Solar Wall ◽

Change Material

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Transient response of the Trombe wall temperature distribution applicable to passive solar heating systems

Energy Conversion and Management ◽

10.1016/0196-8904(88)90006-4 ◽

1988 ◽

Vol 28 (1) ◽

pp. 21-25 ◽

Cited By ~ 11

Author(s):

Shou-Shing Hsieh ◽

Jinn-Tsong Tsai

Keyword(s):

Temperature Distribution ◽

Transient Response ◽

Wall Temperature ◽

Solar Heating ◽

Heating Systems ◽

Trombe Wall ◽

Passive Solar

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Collaborating in decision making of sustainable building design: An experimental study comparing CBA and WRC methods

Energy and Buildings ◽

10.1016/j.enbuild.2016.05.079 ◽

2016 ◽

Vol 128 ◽

pp. 132-142 ◽

Cited By ~ 10

Author(s):

Paz Arroyo ◽

Camila Fuenzalida ◽

Alex Albert ◽

Matthew R. Hallowell

Keyword(s):

Decision Making ◽

Experimental Study ◽

Building Design ◽

Sustainable Building

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Numerical and experimental study of a passive solar still integrated with an external condenser

International Journal of Hydrogen Energy ◽

10.1016/j.ijhydene.2017.07.242 ◽

2017 ◽

Vol 42 (48) ◽

pp. 29047-29055 ◽

Cited By ~ 12

Author(s):

Ahmed Rahmani ◽

Abdelouahab Boutriaa

Keyword(s):

Experimental Study ◽

Solar Still ◽

Passive Solar Still ◽

Passive Solar

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An experimental study of the thermal performance of the square and rhombic solar collectors

Thermal Science ◽

10.2298/tsci151228252n ◽

2018 ◽

Vol 22 (1 Part B) ◽

pp. 487-494 ◽

Cited By ~ 1

Author(s):

Aminreza Noghrehabadi ◽

Ebrahim Hajidavaloo ◽

Mojtaba Moravej ◽

Ali Esmailinasab

Keyword(s):

Experimental Study ◽

Flat Plate ◽

Mass Flow Rate ◽

Mass Flow ◽

Flow Rate ◽

Thermal Performance ◽

Thermal Efficiency ◽

Solar Collectors ◽

Heating Systems ◽

Solar Water Heating

Solar collectors are the key part of solar water heating systems. The most widely produced solar collectors are flat plate solar collectors. In the present study, two types of flat plate collectors, namely square and rhombic collectors are experi?mentally tested and compared and the thermal performance of both collectors is investigated. The results show both collectors have the same performance around noon (?61%), but the rhombic collector has better performance in the morning and afternoon. The values for rhombic and square collectors are approximately 56.2% and 53.5% in the morning and 56.1% and 54% in the afternoon, respectively. The effect of flow rate is also studied. The thermal efficiency of rhombic and square flat plate collectors increases in proportion to the flow rate. The results indicated the rhombic collector had better performance in comparison with the square collector with respect to the mass-flow rate.

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