辐射
扩散
太阳能蒸馏器
大气科学
对流
材料科学
光学
环境科学
气象学
机械
热力学
化学
物理
海水淡化
膜
生物化学
作者
Hiroshi Tanaka,Koji Iishi
出处
期刊:Desalination
[Elsevier]
日期:2017-01-01
卷期号:402: 19-24
被引量:36
标识
DOI:10.1016/j.desal.2016.09.031
摘要
A single-effect diffusion still, instead of a multiple-effect diffusion (MED) still, combined with a tilted wick (TW) still was investigated experimentally under actual weather conditions to investigate whether the natural convection can transport the vapor from the TW still to an MED still adequately. It was found that the single-effect still can be heated by vapor from the TW still and solar radiation absorbed on the single-effect still. From the experiments in summer and autumn, it was found that an MED still can be heated in both seasons whether the MED still absorbs solar radiation directly or not. The experimental results agreed with the calculation results. The total daily amount of distillate, Σmd,total, did not correlate with the daily horizontal solar radiation, ΣGday, but strongly correlated with daily solar radiation incident on the still, ΣGstill. The maximum of Σmd,total obtained in experiments was about 4.88 kg/m2 day when ΣGday and ΣGstill were 13.6 and 18.4 MJ/m2 day, respectively.
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