Influence of irradiance incidence angle and installation configuration on the deposition of dust and dust-shading of a photovoltaic array

Kudzanayi Chiteka, Rajesh Arora, S.N. Sridhara and C.C. Enweremadu

Energy, 2021, vol. 216, issue C

Abstract: The influence of installation configuration and the angle of incidence on the total shading of a soiled photovoltaic collector was investigated. A model to determine the total shaded area on concentrated dust particles on a photovoltaic surface was also developed. Computational Fluid Dynamics (CFD) was employed to ascertain dust accumulation on each installation configuration. The SST k-ω turbulence model was used together with the Discrete Phase Model (DPM) for the respective computation of the air fluid and dust particle motion. Annual simulation of daily total shading and the energy generated was performed. The results showed that energy generated when both direct and indirect shading was considered was less by 2.49% to the generally expected energy without considering the shadow effect of dust particles. The minimising of the shading effects using Response Surface Methodology gave a range of tilt angles from 15.84° to 17.69° at 180° to 189.9° azimuth angles as the optimum configurations which can generate up to 38.62 kWh for a 5 kW hypothetical solar system. The shading effect of dust particles was modelled using a 2nd order polynomial with tilt and orientation as the parameters and the model had good accuracy with a coefficient of determination of 0.9811.

Keywords: Solar photovoltaics; Modelling and simulation; Soiling; Incidence angle; Shading (search for similar items in EconPapers)
Date: 2021
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:216:y:2021:i:c:s0360544220323963

DOI: 10.1016/j.energy.2020.119289

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