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

高产盆式多效耦合太阳能蒸馏器

• 批准号: 10650220
• 负责人: NAGATA Takashi
• 金额: $ 2.3万
• 依托单位: University of the Ryukyus
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1998
• 资助国家: 日本
• 起止时间: 1998 至 2000
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-10650220/
• 关键词: Solar Energy; Distillation; Solar Still; Multiple Effect; Evaporation; Condensation; Solar Energy; Distillation; Solar Still; Multiple Effect; Evaporation; Condensation

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.

提出了一个新设计的多效率太阳能，其三角形横截面由水平盆地衬里，倾斜的双玻璃盖和与盐水浸泡的灯芯接触的垂直平行分区组成。太阳辐射在盆地和第一个分区中被吸收，分区部分回收了来自盆地的能量以及吸收的太阳能，以极大地提高馏出物的生产率。理论上仍在设计，操作和天气参数的各种值下对参数的各种值进行了分析，以确定参数的最佳值。基于最佳值构建了一个太阳能，然后在两年内进行了静止的室外实验。在第一个测试期间，静止的蒸馏生产力小于理论预测的20-30％。将每个分区与下一个分区之间夹有20个小块后，生产率提高了，并且与理论预测一样多。发现所提出的仍然比仍然由倾斜平行分区组成的常规多效应太阳能的生产力高50％或高，并且所提议的维护仍然需要更少的努力和成本。