Photovoltaic PP board particle data chart

How does deposited solid particles affect PV module efficiency?

The size of deposited solid particles plays a major role in the scattering and absorption of radiation incident on the solar module and causes degradation of PV module efficiency. Larger particles have a greater tendency of resuspension with the airflow which promotes deposition of small-size particles.

Does dust deposition affect the performance of photovoltaic modules?

The influence of the dust deposition on the performance of photovoltaic modules is obvious but depending on the location, dust composition may be different and in consequence, the degree of reduction in the efficiency of PV modules may vary from location to location (Kaldellis and Kapsali 2011 ).

Can a quadratic fitting model predict the dust concentration on photovoltaic panels?

This paper proposes a quadratic fitting model of particle deposition influencing factors and deposition concentration. This model can be used to predict the dust concentration on photovoltaic panels in practical projects, thus determining the dust cleaning frequency and effectively improving the efficiency of photovoltaic power generation.

What are dust particles deposited on a photovoltaic panel?

It can be seen from Fig. 1 that the dust particles deposited on the photovoltaic panel have an irregular bulk structure, rough and irregular surface, and poor light transmittance. The dust particles are mainly composed of silicon, oxygen, calcium, magnesium, carbon, potassium, and other elements, as shown in Fig. 2.

Are co-extruded backsheets based on pp suitable for PV modules?

Summarized, co-extruded backsheets based on PP show great potential to be a valid replacement of standard PET based backsheets in PV modules. On the one hand, the PP backsheet so far proved excellent stability, exhibiting no severe material degradation after extended exposure to temperature, humidity and irradiation.

How does gravity affect the particle deposition concentration of photovoltaic panels?

Large particles settle rapidly under the action of gravity and cannot reach the surface of photovoltaic panels. It can be seen from Fig. 14 b that the particle deposition concentration is greatest when the wind speed and inclination reach the maximum at the same time.