Abstract—

The limited productivity of conventional solar still is considered as the main obstacle that restricts their implementation. Hence the objective of the current study is to enhance the productivity of conventional solar still (CSS) by increasing the evaporation area using a rotating hollow drum. Many factors have been considered in the investigation of the enhanced solar still (ESS) productivity; including environmental factors and operation factors such as drum rotational speed. Three rotational speeds have been used in the experimental tests (0.5, 1, and 3 rpm) during three typical days 12, 13, and 14 June 2019. All tests done for 12 h from 8:00 am to 20:00 pm. Study results showed that the productivity enhanced by about 161% with 0.5 rpm, 111% with 1 rpm, and 75% with 3 rpm rotational speed compared to conventional solar still. Accordingly, the productivity increased with decreasing rotational speed and the maximum value obtained at the lower speed (0.5 rpm).

中文翻译：

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俄罗斯叶卡捷琳堡市，空心鼓转速变化对改性太阳能蒸馏器生产率的影响

摘要—

传统太阳能的生产率有限仍然被认为是限制其实施的主要障碍。因此，当前研究的目的是通过使用旋转的空心鼓增加蒸发面积来提高常规太阳能蒸馏器（CSS）的生产率。在研究提高太阳能蒸馏器（ESS）生产率时已经考虑了许多因素。包括环境因素和操作因素，例如滚筒转速。在2019年6月12日，13日和14日的三个典型天数中，在试验测试中使用了三种转速（0.5、1、3 rpm）。所有测试从上午8:00到下午20:00进行了12小时。研究结果表明，与传统的太阳能蒸馏器相比，在0.5 rpm的转速下生产率提高了约161％，在1 rpm的转速下生产率提高了111％，在3 rpm的转速下生产率提高了75％。因此，