Computational investigation of dust settlement effect on power generation of three solar tracking photovoltaic modules using a modified angular losses coefficient
| Autor: | Cyrus Aghanajafi, Tahereh Zarei, Madjid Soltani, Morteza Abdolzadeh |
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| Rok vydání: | 2021 |
| Předmět: |
Physics
Renewable Energy Sustainability and the Environment business.industry Settlement (structural) 020209 energy Photovoltaic system 02 engineering and technology 021001 nanoscience & nanotechnology Solar energy Solar tracker Computational physics Degree (temperature) Power (physics) Particle aggregation Electricity generation 0202 electrical engineering electronic engineering information engineering General Materials Science 0210 nano-technology business |
| Zdroj: | Solar Energy. 222:269-289 |
| ISSN: | 0038-092X |
| Popis: | Providing a suitable method for predicting the effect of particle aggregation on photovoltaic (PV) performance can be one of the best ways to make better use of solar energy. In this study, a mathematical method was used and modified to provide a better prediction of angular losses coefficient ( α r ). The modified coefficient as well as a computational method were used to find the performance of dusty modules equipped with one-axis (East-West (EW), North-South (NS)), and dual-axis (DAT) solar tracking systems. The modified α r , which here is called the degree of surface dirtiness, can be used to estimate the area covered by particles per cm 2 , i.e. A ∗ C ( θ ) . A better prediction of α r causes a better prediction of power loss due to dust settlement. Results showed that A ∗ C ( θ ) is the factor that shows the role of incidence angle in visualizing the type of dust cover, while α r shows the effect of slope angle on dust deposition density. Furthermore, combination of α r with the computational model revealed that the dirty DAT module has the least daily power loss which is 9% of the clean counterpart power. The power losses for the NS and EW dusty modules are 13% and 20.5% lower than the clean counterparts, respectively. It should be noted that the obtained results in this study are in a good compromise with the experimental and computational data available in the literature. |
| Databáze: | OpenAIRE |
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