研究目的
Investigating the performance degradation of PV module output power caused by different types of industrial dust deposition under tropical climatic conditions.
研究成果
Dust accumulation significantly reduces the performance of polycrystalline silicon photovoltaic modules, with coal dust having the most detrimental effect. Fine particles cause more efficiency loss than larger particles, and dust accumulation also leads to increased module temperature, further degrading performance.
研究不足
The study is limited to the tropical climatic condition of Arusha, Tanzania, and specific types of industrial dust. The findings may not be universally applicable to all dust types or climatic conditions.
1：Experimental Design and Method Selection:
The study involved outdoor experimental measurements under three different solar irradiances (720 W/m2, 800 W/m2, and 900 W/m2) to assess the impact of dust from fertilizer, gypsum, aggregate crusher, and coal mine industries on PV module performance.
2：Sample Selection and Data Sources:
Dust samples were collected from manufacturing and mining industries in Tanzania, sieved into different particle size ranges (90 μm-180 μm, 45 μm–90 μm, and 20 μm-45 μm), and uniformly distributed over the module surface.
3：List of Experimental Equipment and Materials:
Two identical photovoltaic modules (model SLP100-12), USB data loggers for temperature and humidity monitoring, solar meter TES 132 USB, rheostat, digital multimeters, and a digital weight balance were used.
4：Experimental Procedures and Operational Workflow:
The experiment was conducted in an outdoor environment, with one module covered with dust and another left clean for comparison. Current and voltage were measured by supplying power to a rheostat, and I‐V and P‐V characteristics were examined.
5：Data Analysis Methods:
The efficiency of the module was calculated based on maximum power, solar irradiance, and surface area of the panel. Performance efficiency loss was calculated by comparing clean and dirty module efficiencies.
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