Modeling of dust deposition impact on PV/T hybrid collector performances

Dust deposition on the front of photovoltaic /thermal collectors presents greatest issues in some regions (desertic regions). It’s considered as key parameter affecting much more collector’s performances. In the present work, a particular attention has been paid to dust deposition effect on the electrical and thermal performances of photovoltaic /thermal collector PV/T.A model of sheet-and-tubes PV/T collector is developed and validated with experimental data available in literature. The obtained results show that the dust significantly affects the electrical and thermal efficiencies. An increase of dust deposition of 8g/m2 causes an electrical and a thermal output reduction respectively of 28% and 21%. Better electrical and thermal performances have been noted for PV/T without dust. Moreover, a good agreement has been observed between obtained results and the presented results available in literature.