In this work we investigate, design, and evaluate a number of dust barrier designs that would be appropriate to reduce soiling of glass mirror solar collectors in the solar field of an existing CSP plant. The principal objective was to reduce the amount of soiling (and hence the amount of cleaning water consumed) by 50% in comparison with current cleaning procedures (considering particles of size >25 μm). "Fluent" CFD software was used to model of a range of potential dust barrier shapes, sizes, and porosities. Airflows and wind loadings were analyzed in this way. A number of potential designs were then taken forward for experimental validation. Initial validation involved wind tunnel evaluation of a small number of potential designs, using a new wind tunnel specifically designed and built for this project. Larger-scale outdoor validation was carried out both at Cranfield University in the UK and at CIEMAT-PSA (Plataforma Solar de Almeria) in Spain. Initial results were independent of location and barrier shape and showed that the percentage of particles that were stopped completely or travelled less than 1m beyond the barrier was in the range 45.8 ± 5%.
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机译：在这项工作中，我们调查，设计和评估许多尘埃屏障设计，这适合减少现有CSP厂的太阳能领域的玻璃镜太阳能收集器污染。主要目的是减少污染量（并因此在考虑尺寸>25μm的颗粒）的比较中污染的污染量（并因此消耗的清洁量）50％。 “流利的”CFD软件用于模拟一系列潜在的防尘形状，尺寸和孔隙率。以这种方式分析了气流和风机。然后向实验验证提出许多潜在的设计。初始验证涉及使用专门为此项目设计和构建的新风洞的少数潜在设计的风洞评估。大规模的户外验证是在英国的Cranfield大学和西班牙的Ciemat-PSA（Plataforma Solar de Almeria）进行的。初始结果与位置和屏障形状无关，并显示出完全或行驶的颗粒的百分比超出屏障的颗粒的百分比范围为45.8±5％。
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