Effect of tilt angle on soiling in perpendicular wind

Figgis, Benjamin; Goossens, Dirk; Guo, Bing; Ilse, Klemens

doi:10.1016/j.solener.2019.10.062

Cited by 25 publications

(18 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…On a vertically positioned, the rain has no platform to settle as such washes of particles on the coupons. Figgis et al (2019) stated that a high increase in dust particle detachment could be observed by fast near-wall flow (air or water). Tilted (45) positioned coupons were observed to have moderate accumulation on all the setup due to the obtuse angle created and facing the wind that promotes high deposition and detachment of particles.…”

Section: Discussionmentioning

confidence: 99%

“…The findings revealed that the maximum deposition occurs at a tilt angle of 45 while the module faces southwards for larger particles (> 10μm) and 90 for particles smaller than 10μm. Figgis et al (2019) investigated dust deposition and accumulation on coupons positioned in an axis perpendicular to wind in outdoor conditions and laboratories. Their outdoor result showed that maximum deposition occurred at angle 45, but maximum accumulation occurred at 22 away from the incoming wind.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Angular dependencies of soiling loss on photovoltaic performance in Nigeria

2021

View full text Add to dashboard Cite

Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Angular dependencies of soiling loss on photovoltaic performance in Nigeria

2021

View full text Add to dashboard Cite

“…Soiling found to lower if the surface is heated. Figgis et al., 2019 2019 Doha, Qatar Tropical and subtropical desert climate Wind, dust accumulation, dust deposition Soiling deposition decreased as the WS increased in wind tunnel tests. Highest decrease at 4 m/s.…”

Section: Estimation Of Soiling From Environmental Parametersmentioning

confidence: 99%

“…It should be noted that conditions external to weather, pollution, and climate also have an effect on the soiling deposition rate. For example, it is known that steeper tilt angles reduce the soiling losses ( Cano et al., 2014 ; Conceição et al., 2019b ) and different orientations with regard to the wind can change the deposition and accumulation rates ( Figgis et al., 2019 ). The dissimilar effects of soiling on different PV technologies have already been discussed in “ optical soiling measurement ” ( John et al., 2015 ; Qasem et al., 2014 ).…”

Section: Estimation Of Soiling From Environmental Parametersmentioning

confidence: 99%

Monitoring photovoltaic soiling: assessment, challenges, and perspectives of current and potential strategies

et al. 2021

View full text Add to dashboard Cite

Soiling is the process whereby dirt, dust, and organic/inorganic contaminants deposit on the surface of a photovoltaic (PV) module. It causes significant economic losses and can have a substantial impact on the expansion of photovoltaic technologies for energy generation. The first step to address soiling adequately is monitoring, as soiling mitigation has to be tailored to the specific conditions of each PV system and no universally valid strategy exists. The main focus of this study is to assess the current state of the art in soiling monitoring, in order to help the community better understand the needs and the challenges in this area. The potentials and the limitations of each monitoring method are discussed thoroughly in the paper, with the support of original experimental data. An estimation of the future soiling monitoring market trends is also presented, with a forecasted need for tens of thousands of new soiling monitors every year.

show abstract

“…The soiling accumulated on the modules absorbs, reflects and deflects part of the sun radiation, reducing the intensity of the light reaching the PV cells and therefore the amount of energy converted by the module. Dust density accumulated on the surface of PV modules depends on a wide range of parameters, such as meteorological parameters (pollution, wind speed and direction, rainfall patterns…), location and tilt angle of PV modules, among others [72][73][74][75]. As commented, the main consequence of soiling is the reduction of the energy generated by PV modules [28].…”

Section: Soilingmentioning

confidence: 99%

Optical degradation impact on the spectral performance of photovoltaic technology

Fernández-Solas

Micheli

Almonacid

et al. 2021

Renewable and Sustainable Energy Reviews

View full text Add to dashboard Cite

The exponential growth of global capacity along with a reduction in manufacturing costs in the last two decades has caused photovoltaic (PV) energy technology to reach a high maturity level. As a consequence, currently, researchers from all over the world are making great efforts to analyse how different types of degradation impact this technology. This study provides a detailed review of the impact of different optical degradation mechanisms, which mainly affect the transmittance of the top-sheet encapsulant, on the spectral response of the PV modules. The evaluation of the impact on the spectral performance of PV modules is evaluated by considering the variations of the short-circuit current since this is the most widely used parameter to study the spectral impact in outdoors. Some of the most common types of optical degradation affecting the performance of PV modules worldwide, such as discoloration, delamination, aging and soiling have been addressed. Due to the widely documented impact of soiling on the spectral response of modules, this mechanism has been specially highlighted in this study. On the other hand, most of the publications analysed in this review report optical degradation in PV modules with polymeric encapsulant materials. Furthermore, an innovative procedure to quantify the spectral impact of degradation on PV modules is presented. This has been used to analyse the impact of two particular cases of degradation due to soiling and discoloration on the spectral response of different PV technologies.

show abstract

Effect of tilt angle on soiling in perpendicular wind

Cited by 25 publications

References 15 publications

Angular dependencies of soiling loss on photovoltaic performance in Nigeria

Angular dependencies of soiling loss on photovoltaic performance in Nigeria

Monitoring photovoltaic soiling: assessment, challenges, and perspectives of current and potential strategies

Optical degradation impact on the spectral performance of photovoltaic technology

Contact Info

Product

Resources

About