Cotton rope has good water transport performance and plasticity. An efficient three-dimensional evaporator for solar evaporation was prepared by winding the cotton rope into different shapes and covering its surface with carbon black (CB). The light absorption of the evaporator coated with CB was significantly improved, and the average absorptance was 95.8% over the solar spectrum. Using a one-dimensional channel for water supply, the evaporator and bulk water were separated, and thermal localization was realized without thermal insulation materials. The influence of the evaporator shape on evaporation performance was analyzed. Under the same conditions, the evaporation rate of funnel-shaped evaporator was the highest, reaching 1.3033 kg / m2 h. The multiple reflection of light in the funnel-shaped evaporator promoted the capture and absorption of incident light. For the evaporator with a reflector placed below, the evaporation rates of funnel-shaped, plane-shaped, and umbrella-shaped evaporators increased by 2.3%, 1.67%, and 0.814%, respectively. In addition, the evaporator has a self-cleaning function. The salt deposited on the surface can be redissolved and leaves the evaporator with water. An efficient solar evaporator was designed in a simple and economical way. Its self-cleaning function is especially suitable for seawater desalination.

中文翻译：

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太阳能蒸发用一维供水通道自洁式蒸发器的蒸发性能

棉绳具有良好的输水性能和可塑性。通过将棉绳缠绕成不同的形状并用炭黑（CB）覆盖其表面，制备了一种用于太阳能蒸发的高效三维蒸发器。涂有CB的蒸发器的光吸收明显提高，太阳光谱的平均吸收率为95.8%。采用一维通道供水，蒸发器与散装水分离，无需保温材料即可实现热定位。分析了蒸发器形状对蒸发性能的影响。在相同条件下，漏斗形蒸发器的蒸发速率最高，达到1.3033 kg/m2 h。漏斗形蒸发器中光的多次反射促进了入射光的捕获和吸收。对于下方放置反射器的蒸发器，漏斗形、平面形和伞形蒸发器的蒸发率分别提高了2.3%、1.67%和0.814%。此外，蒸发器具有自清洁功能。沉积在表面上的盐可以重新溶解并随水离开蒸发器。高效太阳能蒸发器的设计简单且经济。其自洁功能特别适用于海水淡化。蒸发器具有自清洁功能。沉积在表面上的盐可以重新溶解并随水离开蒸发器。高效太阳能蒸发器的设计简单且经济。其自洁功能特别适用于海水淡化。蒸发器具有自清洁功能。沉积在表面上的盐可以重新溶解并随水离开蒸发器。高效太阳能蒸发器的设计简单且经济。其自洁功能特别适用于海水淡化。