A Highly Productive Basin-Type-Multiple-Effect Coupled Solar Still

设计了一种新设计的多效太阳能蒸馏器，其三角形截面由水平盆衬、倾斜的双层玻璃盖和垂直平行的隔板组成，隔板与盐水浸泡的灯芯接触。太阳辐射被盆地和第一个分区吸收，分区段回收来自盆地的能量以及吸收的太阳能，从而大幅提高馏出物的生产率。对设计参数、运行参数和天气参数进行了理论分析，确定了最佳参数值。在此基础上建立了一个太阳能蒸馏器，并进行了两年多的室外实验。在第一个试验阶段，蒸馏器的蒸馏效率比理论预测低20-30%。在每个分区和下一个分区之间夹上20个小块后，生产率提高了，与理论预测一样多。研究发现，与由倾斜平行隔板组成的传统多效太阳能蒸馏器相比，所提出的蒸馏器的生产率提高了50%或更多，并且所提出的维护仍然需要更少的精力和成本。

A newly designed multiple-effect solar still with a triangle cross-section consisting of a horizontal basin liner, a tilted double glass cover and the vertical parallel partitions in contact with saline-soaked wicks was presented. Solar radiation is absorbed in the basin and in the first partition, and the partition section recycles the energy from the basin as well as the absorbed solar energy to increase drastically the distillate productivity.The proposed still was theoretically analyzed at various values for design, operational and weather parameters to determine the optimum values for the parameters. A solar still was constructed based on the optimum values and then outdoor experiments with the still were performed over two years. The distillate productivity of the still was less than the theoretical predictions by 20-30% for the first test period. After sandwiching 20 small lumps between each partition and the next one, the productivity increased and was as much as the theoretical predictions. It was found that the proposed still is more productive by 50% or more than the conventional multiple-effect solar still consisting of tilted parallel partitions, and the maintenance of the proposed still requires less effort and cost.