The vast majority of water on the Earth's surface, over 96%, is saline water present in the oceans. In some areas there is not sufficient fresh water to provide people the water they need. Thus, there is a need to desalinate salt water. The basin-type solar still is known to be the most simple and economic method for water desalination. This study investigates how to enhance the productivity of the basin-type solar still. Basin-type solar stills with a basin area of 1 m² are used in the study. Two means are used for enhancing its productivity: integrating the solar still to a solar water heater (SWH) to preheat the feed water to the still, and using some metals as energy storage media. A maximum hourly productivity of 400 and 900 ml were recorded for stills without and with SWH, respectively. Copper filings (CF), iron filings (IF) and iron swarf are used as energy storage materials. An increase of 36.2% in still productivity is noticed when adding 1 kg of CF to the still. Comparing copper with iron, it is noticed that the productivity of the CF still is 34.1% higher than that of the IF still.

中文翻译：

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增强型太阳能淡化装置

地球表面的绝大多数水（超过96％）是海洋中存在的咸水。在某些地区，淡水不足，无法为人们提供所需的水。因此，需要使盐水脱盐。众所周知，盆式太阳能蒸馏器是用于海水淡化的最简单，最经济的方法。本研究探讨了如何提高盆式太阳能蒸馏器的生产率。盆地型1 m ²的盆地型太阳剧照用于研究中。有两种方法可用于提高生产率：将太阳能蒸馏器集成到太阳能热水器（SWH）中以预热蒸馏器中的给水，并使用一些金属作为能量存储介质。在不使用SWH和使用SWH的情况下，记录的最高每小时生产率分别为400和900 ml。铜屑（CF），铁屑（IF）和铁屑被用作储能材料。将1 kg的CF添加到蒸馏水中后，蒸馏水生产率提高了36.2％。将铜与铁进行比较，可以发现CF的生产率仍然比IF的生产率高34.1％。