Abstract In the current work, we introduced, experimentally and theoretically, a modified technique of reducing the water depth as much as possible inside the tubular solar still using a rotating drum. The existence of the rotating drum inside the tubular solar still provides the lowest amount of basin water and creates a thin water film, which is evaporated quickly. So, the effect of using closed ends drum and open ends drum on the performance of tubular distiller was investigated. Besides, using the rotating drum increased the evaporative and exposure surface areas inside the tubular solar still. Moreover, the effect of different rotating speeds (0.02, 0.05, 0.1, 0.2, 0.5, 1.0, 2.0, 3.0, and 4.0 rpm) on the performance of tubular distiller was investigated. Furthermore, the system was studied with and without wick. The results revealed that the speed of 0.05 and 0.1 rpm obtained superior performance of tubular drum distiller with and without wick, respectively. In addition, at 0.1 rpm and without wick, the productivity of the tubular drum still was improved by 121% and 136% for the closed ends and open ends drums, respectively. While, at 0.05 rpm and with wick, the productivity of the tubular drum still was enhanced by 140% and 175% for the closed ends and open ends drums, respectively. Furthermore, with wick, the thermal and exergy efficiencies of the tubular drum still were 56.4% and 3.45 % for the closed ends drum and 61 and 3.6 % for the open ends drum, respectively.

中文翻译：

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使用转鼓提高管式太阳能蒸馏器的性能——实验和理论研究

摘要 在目前的工作中，我们从实验和理论上介绍了一种使用转鼓尽可能减少管状太阳能蒸馏器内部水深的改进技术。管状太阳能内部旋转滚筒的存在提供了最低量的盆地水，并形成了一层薄薄的水膜，并迅速蒸发。因此，研究了使用封闭式转鼓和开放式转鼓对管式蒸馏器性能的影响。此外，使用转鼓增加了管状太阳能蒸馏器内部的蒸发和暴露表面积。此外，研究了不同转速（0.02、0.05、0.1、0.2、0.5、1.0、2.0、3.0和4.0 rpm）对管式蒸馏器性能的影响。此外，研究了有和没有灯芯的系统。结果表明，0.05 和 0.1 rpm 的速度分别获得了带芯和不带芯的管式鼓式蒸馏器的优越性能。此外，在 0.1 rpm 和无芯时，管状滚筒的生产率仍然分别提高了 121% 和 136% 的封闭端和开口端滚筒。而在 0.05 rpm 和有芯的情况下，封闭端和开口端滚筒的管状滚筒的生产率仍然分别提高了 140% 和 175%。此外，使用灯芯，管状滚筒的热效率和火用效率对于封闭端滚筒仍然分别为 56.4% 和 3.45%，对于开口端滚筒分别为 61% 和 3.6%。对于封闭端和开口端滚筒，管状滚筒的生产率仍然分别提高了 121% 和 136%。而在 0.05 rpm 和有芯的情况下，封闭端和开口端滚筒的管状滚筒的生产率仍然分别提高了 140% 和 175%。此外，使用灯芯，管状滚筒的热效率和火用效率对于封闭端滚筒仍然分别为 56.4% 和 3.45%，对于开口端滚筒分别为 61% 和 3.6%。对于封闭端和开口端滚筒，管状滚筒的生产率仍然分别提高了 121% 和 136%。而在 0.05 rpm 和有芯的情况下，封闭端和开口端滚筒的管状滚筒的生产率仍然分别提高了 140% 和 175%。此外，使用灯芯，管状滚筒的热效率和火用效率对于封闭端滚筒仍然分别为 56.4% 和 3.45%，对于开口端滚筒分别为 61% 和 3.6%。