Experimental Study of Thermal Conductivity of Concrete with Biosourced Material for Saved Energy in Buildings

Annals of West University of Timisoara Physics Pub Date : 2022-11-28 DOI:10.2478/awutp-2022-0011

Hichem Necib, D. Belatrache, Hafnaoui Goutar, Nesrine Sahraoui

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Abstract

Abstract This study aims to improve the thermal efficiency of concrete slabs by introducing a plant material. This can contribute to the improvement of internal thermal comfort for buildings and this by lower energy consumption. For this, several experiments were carried out at the laboratory, to find the thermal properties of a new innovative building material produced by inserting ALFA (STIPA TENACISSIMA) into a concrete slab. Several mass percentages of ALFA relative to the total mass of the concrete slab (0%, 0.4%, 0.8%, 1.2% and 1.6%) were studied to see the effect of the introduced quantity of this plant on the thermal conductivity of concrete. It was concluded that the insertion of ALFA in the concrete, decreases considerably the thermal conductivity. The best results are noticed for 1.2% of ALFA, whose thermal conductivity of the concrete is reduced up to 50.61%. As a result, heat gains and losses, through wall or slab, are significantly reduced, which reduces the energy consumed by cooling and heating of homes. In addition, the degree-day method was used to calculate the costs of cooling and heating energy for 58 regions in Algeria. The lowest total energy cost is noticed in the TENES region, while the highest energy cost is noticed in the BORDJ B. MOKHTAR region.

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建筑节能用生物源材料混凝土导热性能试验研究

摘要本研究旨在通过引入植物材料来提高混凝土板的热效率。这有助于改善建筑物的内部热舒适性，从而降低能耗。为此，在实验室进行了几项实验，以发现将ALFA (STIPA TENACISSIMA)插入混凝土板中产生的新型创新建筑材料的热性能。研究了ALFA相对于混凝土板总质量的几个质量百分比(0%，0.4%，0.8%，1.2%和1.6%)，以观察该植物的引入量对混凝土导热性的影响。结果表明，ALFA在混凝土中的掺入，显著降低了混凝土的导热系数。当ALFA添加量为1.2%时，效果最好，混凝土导热系数降低50.61%。因此，通过墙壁或板的热量增益和损失大大减少，从而减少了家庭制冷和供暖所消耗的能量。此外，还利用度日法计算了阿尔及利亚58个地区的冷热能源成本。总能源成本最低的是TENES区域，最高的是BORDJ B. MOKHTAR区域。

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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Annals of West University of Timisoara Physics

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