Numerical analysis of combined heat transfers through concrete hollow bricks in a hot climate of Morocco

IF 1.8 4区 工程技术 Q3 CONSTRUCTION & BUILDING TECHNOLOGY
B. Jamal, L. El moutaouakil, M. Boukendil, A. Abdelbaki, Z. Zrikem
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引用次数: 0

Abstract

The aim of this study is to determine the thermal conductance of concrete hollow bricks, which is crucial for assessing the energy efficiency of buildings. The study focuses on three types of concrete hollow bricks that are frequently used to build walls in Morocco. The three modes of heat transfer by convection, conduction and radiation are taken into account. The thermal behavior of the three types was simulated using a computational model created with the finite volume method. The effect of internal surfaces emissivity and solid wall thermal conductivity on overall heat transfer is investigated using practical values of the thermal excitations. Simulation results of the three types were compared and showed that the concrete hollow brick of Type (C) is the best performing configuration. Indeed, it reduces the thermal conductance (U-value) by 40% compared to hollow brick of Type (B), which will contribute to improve the thermal resistance of the building walls.
摩洛哥炎热气候下混凝土空心砖复合传热数值分析
本研究的目的是确定混凝土空心砖的导热性,这对于评估建筑物的能源效率至关重要。这项研究的重点是三种类型的混凝土空心砖,它们在摩洛哥经常用于建造墙壁。考虑了对流、传导和辐射三种传热方式。利用有限体积法建立的计算模型对三种类型的热行为进行了模拟。利用热激励的实际值,研究了内表面发射率和固体壁热导率对总传热的影响。对三种类型的模拟结果进行了比较,结果表明(C)型混凝土空心砖是性能最好的结构。事实上,与B型空心砖相比,它降低了40%的导热系数(u值),这将有助于提高建筑墙体的热阻。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
Journal of Building Physics
Journal of Building Physics 工程技术-结构与建筑技术
CiteScore
5.10
自引率
15.00%
发文量
10
审稿时长
5.3 months
期刊介绍: Journal of Building Physics (J. Bldg. Phys) is an international, peer-reviewed journal that publishes a high quality research and state of the art “integrated” papers to promote scientifically thorough advancement of all the areas of non-structural performance of a building and particularly in heat, air, moisture transfer.
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