Effect of Dust Deposition on the Quantum Efficiency of BPS150-36 Polycrystalline Silicon Photovoltaic Modules during Winter Months in Pahou, Benin
Advances in Research, Volume 17, Issue 6,
Dust is the lesser acknowledged factor that significantly influences the performance of the PV cells/modules.
We investigated analytically from optical models, the performance degradation of the BPS150-36 Polycrystalline silicon module, caused by the natural dust deposition effects on the transparent panel surface.
We modeled, a system (Air-dust-glass) formed of a dust layer supposed opaque and formed of several thousand small grains of different sizes settled on the glass surface. The Matrix-Transfer theory with the cubic spline interpolation method has been exploited for data correlation. Matlab software has been used to results in numerical simulation.
The results obtained show a decrease in PV output intensity, the supply voltage and therefore the power output. That strongly depends on dust thickness on the panel’s surface over a period of three months.
The drop in PV cell quantum efficiency is directly caused by the dust accumulation, trees debris and bird’s droppings on the cells/modules surface. The meteorological conditions, the installations quality and the geographical position of PV cells/modules can also influence the photovoltaic process. These factors have not been taken into account in our model.