Impacts of Adding Porous Media and Phase Change Material on Performance of Solar Water Distiller System Under Iraq Climatic Condition: An Experimental Study

Energy Storage Pub Date : 2024-09-08 DOI:10.1002/est2.70038
Mohammed A. Basim, Omar Rafae Alomar
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Abstract

This current investigation involves an experimental inspection of adding porous medium and phase change material (PCM) above the absorber surface to enhance the performance of a single slope and single basin solar water distiller system. To demonstrate the effectiveness of adding porous medium and PCM, the performance of the modified system and conventional system is compared under similar operating conditions. The system that uses porous medium and PCM is called MSS-FPP, whereas the conventional system is called MSS-F. Rectangular fins are fixed above the absorber plate for both models. For MSS-FPP model, three different types of porous medium (stones, nuts, and black glass balls) are used in addition to paraffin wax filled inside circular tubes as a PCM. The data are collected in November and December 2023 in Mosul City, Iraq. The experiments are carried out under different water depths. The findings confirm that the performance of MSS-FPP model is better than MSS-F model by 41.32% (for water depth 3 cm) and 30.61% (for water depth 5 cm). The results also indicated that the water productivity of MSS-FPP model is higher than MSS-F model by 41.67% (for water depth 3 cm) and 30.65% (for water depth 5 cm). For MSS-FPP model, the maximum water productivity and efficiency are obtained when using black glass balls as compared to nuts and stones types, where the highest water temperature and water productivity values are found equal 54°C and 1.01 kg/m2 for water depth 3 cm. The enhancement in the performance of modified solar water distiller system (MSS-FPP) shows that using a porous medium and PCM has considerable impacts on the evaporation rate, heat exchange, and rate of heat transfer.

伊拉克气候条件下添加多孔介质和相变材料对太阳能蒸馏水系统性能的影响:实验研究
本次研究涉及在吸收器表面上方添加多孔介质和相变材料(PCM)以提高单坡单盆太阳能蒸馏器系统性能的实验检测。为了证明添加多孔介质和 PCM 的有效性,在类似的运行条件下,对改进系统和传统系统的性能进行了比较。使用多孔介质和 PCM 的系统称为 MSS-FPP,而传统系统称为 MSS-F。两种模型的吸收板上方都固定了矩形鳍片。对于 MSS-FPP 模型,除了在圆形管内填充石蜡作为 PCM 外,还使用了三种不同类型的多孔介质(石头、坚果和黑色玻璃球)。数据于 2023 年 11 月和 12 月在伊拉克摩苏尔市收集。实验在不同的水深下进行。结果证实,MSS-FPP 模型的性能比 MSS-F 模型好 41.32%(水深 3 厘米)和 30.61%(水深 5 厘米)。结果还表明,MSS-FPP 模型的水生产力比 MSS-F 模型高 41.67%(水深 3 厘米)和 30.65%(水深 5 厘米)。就 MSS-FPP 模型而言,与坚果和石头类型相比,使用黑色玻璃球可获得最高的水生产力和效率,在水深 3 厘米时,最高水温和水生产力值分别为 54°C 和 1.01 kg/m2。改良型太阳能水蒸馏器系统(MSS-FPP)性能的提高表明,使用多孔介质和 PCM 对蒸发率、热交换和传热速率有很大影响。
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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