In the current study, a passive single slope solar still with three transparent side glass walls (MS3) is theoretically studied. Each side glass wall, equipped with a collecting trough, acts as a condensing surface along with the top condensing cover. The results, validated acceptably against an experimental work in literature, show that MS3 can ameliorate the daily cumulative yield by 158% compared to conventional solar still (CSS) from which the top glass condensing cover, back glass wall, east glass wall and the west one have 43.96%, 25.97%, 15.17% and 14.90% contribution to fresh water production, respectively. Furthermore, the difference between temperatures of brackish water surface and condensing surface(s) is found higher for the case of MS3 than CSS and it justifies the reason behind higher productivity of MS3 than CSS. Moreover, it is observed that the proposed modification seems highly effective in reducing cost per liter of fresh water.

在当前的研究中，从理论上研究了具有三个透明侧面玻璃墙（MS3）的被动式单坡度太阳能蒸馏器。每个装有收集槽的侧玻璃墙都与顶部冷凝盖一起用作冷凝表面。结果被文献实验证明可以接受，表明与传统的太阳能蒸馏器（CSS）相比，MS3可以将每日累积产量提高158％，在常规太阳能蒸馏器中，顶部玻璃冷凝盖，背面玻璃墙，东侧玻璃墙和西侧一个国家对淡水生产的贡献分别为43.96％，25.97％，15.17％和14.90％。此外，发现对于MS3而言，微咸水表面和冷凝表面之间的温度差异要比CSS高，这也证明了MS3的生产率高于CSS的原因。而且，