Outdoor soiling microscope for measuring particle deposition and resuspension

被引：75

作者：

Figgis, Benjamin ^{[1
,2
]}

Ennaoui, Ahmed ^{[1
]}

Guo, Bing ^{[3
]}

Javed, Wasim ^{[3
]}

Chen, Eugene ^{[3
]}

机构：

[1] HBKU, Qatar Environm & Energy Res Inst, POB 5825, Doha, Qatar

[2] Univ Strasbourg, CNRS, ICube Lab, Strasbourg, France

[3] Texas A&M Univ Qatar, POB 23874, Doha, Qatar

来源：

SOLAR ENERGY | 2016年 / 137卷

关键词：

Soiling; Photovoltaic; Microscope; Particle deposition; Resuspension; Condensation; DRY DEPOSITION; DETACHMENT; DUST; IMPACT;

D O I：

10.1016/j.solener.2016.08.015

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

The rate of soiling of photovoltaic modules depends on environmental parameters such as aerosol concentration, humidity and wind speed. Previously we found low correlations between daily averages of these values and the daily soiling rate of a PV system. In this study we aimed to achieve stronger correlations by increasing the measurement frequency, with a simple device able to quantify soiling in outdoor conditions in real time. The so-called outdoor soiling microscope developed could measure the deposit and removal of individual dust particles larger than 10 mu m(2) every few seconds, and could detect the onset and disappearance of condensation. In an initial trial the device revealed qualitative relations between the parameters not seen with 24-h data. However most linear correlation coefficients remained low, suggesting the need for a more sophisticated model of outdoor soiling. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：158 / 164

页数：7

共 13 条

[1] Particle adhesion and detachment in turbulent flows including capillary forces [J].