In-situ assessment of photovoltaic soiling mitigation techniques in northern Nigeria
In-situ assessment of photovoltaic soiling mitigation techniques in northern Nigeria
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DOI：
10.1016/j.enconman.2021.114442
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发表时间：
2021-07-03
影响因子：
10.4
通讯作者：
Mallick, Tapas K.
中科院分区：
文献类型：
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作者：
Chanchangi, Yusuf N.;Roy, Anurag;Mallick, Tapas K.
光伏（PV）系统的性能受到污染等外部因素加剧的影响，特别是在太阳能潜力巨大的干旱和半干旱地区。缓解技术是预防和恢复光伏性能的关键因素之一。因此，在这项研究中，尼日利亚的太阳能发电场采用了五种具有成本效益的缓解技术，例如自然清洁、用橡胶滚轴/水进行手动清洁、用刷子进行手动清洁、用疏水涂层进行自清洁以及用丙烯酸塑料和低铁玻璃试件进行擦拭器的机械化清洁。研究结果表明，自清洁技术在雨季（八月）提供了很高的预防和恢复性能，与玻璃的光学效率相似，达到 99%。使用刮刀/水进行的手动清洁和自清洁都显示出较高的光学效率，在玻璃优惠券上，前者最高，为 96％，后者在旱季（一月）为 95％。此外，结果表明，当暴露在恶劣条件下时，低铁玻璃比丙烯酸塑料更耐用。我们的研究设想了在不同地区较长时间内实施的光伏污染缓解技术的性能和比较成本分析，并考虑了影响光伏系统性能的因素。
The photovoltaic (PV) system's performance suffers from intensifying external factors such as soiling, particularly in arid and semi-arid regions with massive solar energy potential. Mitigation techniques are one of the crucial factors to prevent and restore PV performance. Therefore, in this study, five cost-effective mitigation techniques such as natural cleaning, manual cleaning with squeegee/water, manual cleaning with a brush, self-cleaning with a hydrophobic coating, and mechanised cleaning with a wiper using acrylic plastic and low iron glass coupons were executed solar farm based in Nigeria. The finding shows that the self-cleaning technique provides high preventive and restorative performance during the wet season (August) with similar to 99% optical efficiency for a glass. Both manual cleanings with squeegee/water and self-cleaning demonstrated high optical efficiency, with first being the greatest with 96% and the latter 95% during the dry season (January) on a glass coupon. Furthermore, results show that low iron glass is more durable than acrylic plastic when exposed to the harsh condition. Our study envisages the implemented PV soiling mitigation technique's performance and comparative cost analysis of a full pledge PV panel over a longer duration in different regions, considering the factors influencing PV system performance.