Department of Electrical and Electronics Engineering, Kamaraj College of Engineering and Technology, Madurai, Tamil Nadu, 625 701, India.
Department of Mechanical Engineering, B.S. Abdur Rahman Crescent Institute of Science and Technology, Chennai, 600 048, India.
Environ Sci Pollut Res Int. 2021 Nov;28(41):57602-57618. doi: 10.1007/s11356-021-14640-9. Epub 2021 Jun 5.
The innovation of novel absorbing materials using composite materials and nanotechnology is of new trends for many researches. Here, the present study is concerning to enhance the distilled water productivity of a proposed solar still (PSS) using novel absorbing materials. The absorbing material is composed of chitosan (obtained from waste shrimp shells), ethylene diamine tetraacetic acid (EDTA), and Chrysopogon zizaniodes (Vetiver). The combination of these materials is coined as CHEDZ, and it acts as a super absorbent polymer that is coated on the stepped solar still. Evaporation rate increases due to this absorbent, which further increases the yield of the still. In this present study, the PSS is compared with the conventional solar still (CSS) for the use of assessing the yield of freshwater in the same atmospheric circumstance. The experimental setup was performed through the period from December to February 2020 in the Indian climatic condition. The freshwater productivity was improved to 3.05 L/day while the yield of the CSS is 2.47 L/day. The increase in efficiency obtained from a PSS is 39.71% more than the productivity attained from the CSS. The energy efficiency of the PSS is 18.34% and the exergy efficiency is 0.45%.
利用复合材料和纳米技术创新新型吸收材料是许多研究的新趋势。在这里，本研究旨在通过新型吸收材料来提高所提出的太阳能蒸馏器（PSS）的蒸馏水产量。吸收材料由壳聚糖（从废弃虾壳中获得）、乙二胺四乙酸（EDTA）和香根草（Vetiver）组成。这些材料的组合被称为 CHEDZ，它作为一种超级吸收剂涂覆在阶梯式太阳能蒸馏器上。由于这种吸收剂，蒸发率增加，从而进一步提高了蒸馏器的产量。在本研究中，将 PSS 与传统太阳能蒸馏器（CSS）进行比较，以评估在相同大气环境下淡水的产量。实验装置于 2020 年 12 月至 2 月在印度气候条件下进行。当 CSS 的产水量为 2.47 L/天时，淡水产量提高到 3.05 L/天。与 CSS 相比，PSS 获得的效率提高了 39.71%。PSS 的能量效率为 18.34%，而其火用效率为 0.45%。
