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首页> 外文期刊>Energy Conversion & Management >Analysis of irradiance losses on a soiled photovoltaic panel using contours
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Analysis of irradiance losses on a soiled photovoltaic panel using contours

机译：使用轮廓分析污染的光伏面板上的辐照损失

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摘要

This paper introduces an irradiance loss factor that quantifies the relationship between irradiance, tilt angle and power output of a soiled panel with the soil particle size composition. Artificial soiling experiments were performed using four soil samples at irradiance levels between 200 and 1200 W/m(2) at 18 tilt angles. Biharmonic interpolation was used to develop power contours in terms of irradiance and tilt angle from experimentally obtained data. These contours were compared with ideal ones of a clean panel to observe deviation in the nature of contours for a soiled panel. A correction factor in terms of particle size composition (as a coefficient to tilt angle) was proposed to calculate power output of a tilted soiled panel. The angular loss on a panel with soil sample containing 150 mu m particle size in abundance was observed to be 22% and for sample containing 75 mu m particles in majority, the loss is 24%. Presence of 300 mu m particle size in abundance causes a 23.7% loss, while 52% angular loss was observed for soil with highest composition of less than 75 mu m particle size. (C) 2016 Elsevier Ltd. All rights reserved.
机译：本文介绍了一种辐照度损失因子，用于量化辐照度，倾斜角和具有土壤粒度组成的被污染板的功率输出之间的关系。使用四个土壤样品在18个倾斜角度下以200至1200 W / m（2）的辐照度水平进行了人工污染实验。双谐波插值用于从实验获得的数据中根据辐照度和倾斜角来绘制功率轮廓。将这些轮廓与干净面板的理想轮廓进行比较，以观察弄脏面板的轮廓性质的偏差。提出了一种根据粒度组成的校正因子（作为倾斜角的系数）来计算倾斜的脏板的功率输出。观察到在土壤样品中含有大量150微米颗粒的情况下，板的角损失为22％，而对于大多数含有75微米颗粒的样品，其损失为24％。大量存在300μm粒径会导致23.7％的损失，而对于最高组成小于75μm粒径的土壤，则观察到52％的角损失。 （C）2016 Elsevier Ltd.保留所有权利。

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