Environmental and Exergetic Impacts of PCM-Filled Red Bricks in Conical Solar Water Distillers

IF 2.9 4区 工程技术 Q3 CHEMISTRY, PHYSICAL
Abd Elnaby Kabeel, Mohammed El Hadi Attia, Ali Benhmidene, M. A. Elazab, Mahmoud Bady
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Abstract

This study investigates strategies to improve the efficiency of conical solar distillers for continuous water production during both day and night. Enhancements involve the integration of cylindrical hollow red bricks and natural thermal storage materials, along with the inclusion of phase change materials (PCM) within the hollow fins. A cylindrical hollow red brick, with and without paraffin wax-based PCM, is placed at the base of the distiller basin, and three configurations are analyzed. The first is a standard setup, the second incorporates cylindrical hollow red bricks without PCM, and the third employs PCM-filled cylindrical hollow red bricks. Experiments were conducted over a 24-h period under similar environmental conditions in Algeria, with a 3 cm spacing between the cylindrical hollows. Results demonstrated that the configuration utilizing PCM-filled cylindrical hollow red bricks achieved the highest productivity. Specifically, the daily water output of conical solar distillers using red bricks with and without PCM was 6.15 and 5.55 L⋅m−2, respectively, compared to 3.95 L⋅m−2 for the conventional setup. This corresponds to productivity improvements of 55.70 % and 40.50 %, respectively, over the traditional design. Notably, night-time water production using PCM-filled cylindrical hollow red bricks was enhanced by 200 % compared to systems without PCM. Environmental analysis revealed that the PCM-enhanced system mitigates carbon emissions equivalent to $390.94 annually, 1.55 times the mitigation achieved by the conventional setup. These findings highlight that integrating cylindrical hollow red bricks with PCM significantly enhances the performance of conical solar distillers, offering a promising solution for efficient water distillation.

Abstract Image

锥形太阳能蒸馏器中pcm填充红砖对环境和能源的影响
本研究探讨了提高锥形太阳能蒸馏器在白天和夜间连续产水效率的策略。增强包括圆柱形空心红砖和天然储热材料的集成,以及空心翅片内相变材料(PCM)的包含。在蒸馏盆底部放置有石蜡基PCM和不含石蜡基PCM的圆柱形空心红砖,并对三种结构进行了分析。第一种是标准设置,第二种是不含PCM的圆柱形空心红砖,第三种是填充PCM的圆柱形空心红砖。实验在阿尔及利亚类似的环境条件下进行了24小时,圆柱形空洞之间间隔3厘米。结果表明,利用pcm填充圆柱形空心红砖的配置具有最高的生产率。具体而言,使用红砖和不使用PCM的锥形太阳能蒸馏器的日水量分别为6.15和5.55 L⋅m−2,而传统装置的日水量为3.95 L⋅m−2。与传统设计相比,这对应的生产率分别提高了55.70%和40.50%。值得注意的是,与不使用PCM的系统相比,使用PCM填充的圆柱形空心红砖的夜间产水量提高了200%。环境分析显示,pcm增强系统每年减少的碳排放量相当于390.94美元,是传统系统减少排放量的1.55倍。这些研究结果表明,将圆柱形空心红砖与PCM相结合可以显著提高锥形太阳能蒸馏器的性能,为高效水蒸馏提供了一种有前途的解决方案。
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来源期刊
CiteScore
4.10
自引率
9.10%
发文量
179
审稿时长
5 months
期刊介绍: International Journal of Thermophysics serves as an international medium for the publication of papers in thermophysics, assisting both generators and users of thermophysical properties data. This distinguished journal publishes both experimental and theoretical papers on thermophysical properties of matter in the liquid, gaseous, and solid states (including soft matter, biofluids, and nano- and bio-materials), on instrumentation and techniques leading to their measurement, and on computer studies of model and related systems. Studies in all ranges of temperature, pressure, wavelength, and other relevant variables are included.
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