Abstract A new methodology has been developed to evaluate cleaning efficiency of dust particles on solar panels. Those particles have an average diameter of 2.3 µm and were collected in Doha, Qatar. A brush-disk configuration was constructed to measure the sweeping force as a polymeric tip sliding through a dusted glass substrate. The sweeping force was measured under various applied loads on samples treated in environment of various humidity. Experimental results showed that the cleaning efficiency of dry dust particles was independent of the applied load, reaching higher than 90%. However, the adsorption of water molecules showed pronounced effects on the cleaning efficiency. In order to increase the efficiency in humid environment, the applied load thus needed to be increased. The higher the applied load, the higher the sweeping force, the higher the cleaning efficiency, indicating more power is needed to clean the surface. This research presented an alternative approach to evaluate the cleaning efficiency of dust particles.

中文翻译：

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清洁太阳能电池板清尘力的测量

摘要 开发了一种新的方法来评估太阳能电池板上灰尘颗粒的清洁效率。这些颗粒的平均直径为 2.3 µm，是在卡塔尔多哈收集的。构建了刷盘配置以测量当聚合物尖端滑过撒粉的玻璃基板时的清扫力。在不同湿度环境中处理的样品上，在不同施加载荷下测量扫掠力。实验结果表明，干尘颗粒的清洁效率与施加的载荷无关，达到90%以上。然而，水分子的吸附对清洁效率有显着影响。为了提高在潮湿环境中的效率，因此需要增加施加的负载。施加的载荷越大，清扫力越大，清洁效率越高，说明清洁表面需要更多的动力。这项研究提出了一种评估灰尘颗粒清洁效率的替代方法。