Department of Mechanical Engineering, Ramco Institute of Technology, Rajapalayam, India.
Department of Mechanical Engineering, National Engineering College, Kovilpatti, India.
Environ Sci Pollut Res Int. 2022 Nov;29(55):83378-83388. doi: 10.1007/s11356-022-21466-6. Epub 2022 Jun 28.
Demand for fresh water increases day by day. Solar desalination is one of the promising technologies to meet this demand in an economical fashion which uses solar still. For the current study, single-basin single-slope conventional solar still and a modified single-basin single-slope solar still with inbuilt condenser and agitator were designed and fabricated. Both the stills were tested under the same ambient conditions to compare the performance. Through experimental results, it was found that modified still with inbuilt condenser and agitator had 98.69% more productivity than conventional solar still. Modified still productivity was recorded as 4.856 L/m/day and that of conventional still was 2.44 L/m/day. The agitation effect caused by the agitator in the modified still led to an increase in the rate of evaporation. The increase in condensing area for the same evaporation area of the modified still improved the condensation rate. These two synergized effects resulted in an overall performance improvement of the modified still over the conventional still. An energy analysis revealed that modified still is 24.42% more efficient than its counterpart. The energy efficiency of modified and conventional stills was calculated as 4.82% and 2.04% respectively.
淡水的需求日益增长。太阳能淡化是一种有前途的技术，可以经济地满足这一需求，它使用太阳能蒸馏器。在当前的研究中，设计和制造了单池单坡传统太阳能蒸馏器和带有内置冷凝器和搅拌器的改进型单池单坡太阳能蒸馏器。在相同的环境条件下测试了这两个蒸馏器，以比较性能。通过实验结果发现，带有内置冷凝器和搅拌器的改进型蒸馏器的产量比传统太阳能蒸馏器高 98.69%。改进型蒸馏器的产量为 4.856 升/米/天，而传统蒸馏器的产量为 2.44 升/米/天。改进型蒸馏器中的搅拌器产生的搅拌效果导致蒸发速率增加。对于相同的蒸发面积，改进型蒸馏器的冷凝面积增加，提高了冷凝速率。这两个协同效应导致改进型蒸馏器的整体性能优于传统蒸馏器。能量分析表明，改进型蒸馏器比其对应物效率高 24.42%。改进型和传统蒸馏器的能量效率分别计算为 4.82%和 2.04%。
