非洲地区地暖系统功能参数的热性能分析

Safaa Oubenmoh, Afaf Charraou, R. Saadani, M. Rahmoune, Abdelouahad Ait msaad, A. Jamil, E. H. Sebbar
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引用次数: 1

摘要

建筑物经常使用辐射采暖地板,因为它们提供的好处包括有效利用空间和均匀的温度分布,从而增加热舒适性。目前的工作旨在通过分析和数值研究地板采暖系统的完美使用,以改善热性能,以证明其在各种非洲气候中的效率。评估取决于供暖系统的功能参数,特别关注地板表面温度,以获得所需的热流密度和理想的供水温度。根据结果,宜选用热阻较低的地板覆盖物,不应超过R = 0.15 m2。K/W对地板采暖组件的热效率有相当大的影响。管径建议在20mm左右。通过比较15mm和30mm的管道间距,供水温度的差异约为7.4℃。管道间距越小,传递的能量越多,使地板更温暖,同时减少供暖时间。对于管道材料的影响,本研究选择PE-X,因为它成本低,耐腐蚀,耐结垢。由于这些研究参数对地板采暖的影响是显著的,因此每个城市的环境温度对地板采暖效率也有影响。该模型对地暖系统的控制和设计,以及采暖源的选择具有一定的参考价值。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Thermal Performance Analysis of Functional Parameters of the Floor Heating System in Africa
Buildings frequently utilize radiant heating floors because they offer benefits including effective use of space and homogeneous temperature distribution, which results in increased thermal comfort. The present work aims to investigate the perfect use of floor heating systems analytically and numerically with improved thermal performance to prove their efffficiency in various African climates. The evaluation depends on the functional parameters of the heating system and particularly focuses on floor surface temperature to acquire the desired heat flux and the perfect supply water temperature. According to results, It is desirable to use floor coverings with low thermal resistance and should not exceed R = 0.15 m2 . K/W since it has considerable influence on the thermal efffficiency of the underfloor heating components. The pipe diameter is suggested to be about 20 mm. By comparing pipe spacings of 15 mm and 30 mm, the difference in supply water temperature is approximately 7.4 C. The smaller the pipe spacing, the more energy it delivers and makes the floor much warmer while reducing heating time. Regarding the effect of pipe materials, PE-X is chosen for this study because of its low cost and resistance to corrosion and scaling. As the influence of these studied parameters on floor heating is remarkable, there is also the impact of the ambient temperature of each city on the floor heating efffficiency. The proposed model can be applied and considered potentially beneficial and helpful to the control, and design of floor heating systems, and choosing the right heating source.
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