Experimental investigation of the optimum photovoltaic panels’ tilt angle during the summer period

This study was conducted to evaluate the feasibility of installing a photovoltaic system for supplying the electric load of an environmental institute and to determinate the optimal tilt and azimuth angle of an 100 kW photovoltaic power plant located on the roof of institute. Those parameters plays an important role in maximizing the solar radiation collected by a PV panel. Simulations were made with PVsyst V6.39 for south-east orientation (100; 450) and south-west orientation (100; 450), and for the tilt angle the simulations were made at 100, 150, 370, 600 and 900. The simulation has been done to study the influence of the photovoltaic panels orientation on the amount of electricity produced each month of the year as well as on the total annual amount of electricity. Was experimentally determined by repetitive simulations in the range 300-400 for tilt angle and zero azimuth, optimal parameters for the position of photovoltaic panels. Was defined as the optimal position, the pair of values [zero azimuth, tilt angle 370] where the plant generates maximum energy in one year compared to any other set of values that defines the position of the photovoltaic panels.

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Experimental Investigation of Temperature and Condensation Control of Photovoltaic Panels

2019 6th International Conference on Electrical and Electronics Engineering (ICEEE) ◽

10.1109/iceee2019.2019.00067 ◽

2019 ◽

Author(s):

M. Naser Reda ◽

M. Spinnler ◽

H. Al-Kayiem ◽

T. Sattelmayer

Keyword(s):

Experimental Investigation ◽

Photovoltaic Panels

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Experimental investigation of the wind direction influence on the cooling of photovoltaic panels integrated in double skin façades

E3S Web of Conferences ◽

10.1051/e3sconf/201911103045 ◽

2019 ◽

Vol 111 ◽

pp. 03045

Author(s):

Sebastian Valeriu Hudișteanu ◽

Cătalin George Popovici

Keyword(s):

Experimental Investigation ◽

Wind Tunnel ◽

Wind Direction ◽

Warm Season ◽

Experimental Program ◽

Small Scale ◽

Transfer Coefficients ◽

Photovoltaic Panels ◽

Reference Velocity ◽

Double Skin

The paper presents a wind tunnel experimental investigation of a small-scale building model (1:30). The main objective of the study is to determine the influence of the reference wind direction over the ventilation inside the double skin façade (DSF) channel. The analyzed system consists of a building equipped with photovoltaic panels as the exterior glazing of DSF. The tests were achieved by conceiving and implementation of an experimental program using a wind tunnel with atmospheric boundary layer. The aim is to determine with acceptable probability the velocities that can be reached in the ventilated façade channel during the warm season and to establish a correlation between the external reference velocity magnitude and direction and the velocity field generated inside the channel of the façade. Measurements were carried out for the reference wind speed, total, dynamic and static pressure both in the reference point and inside the façade channel. The results of the investigation highlighted the correlation between the velocity and direction of the reference wind and the dynamics of the air movement inside the double skin façade. The measurements showed that for the analyzed configuration of the double skin façade, there is an optimal wind direction that ensures the best cooling effect to photovoltaic panels. Also, the convective heat transfer coefficients were determined under these conditions. The decrease of the photovoltaic panel’s temperature determines a raise of its efficiency and generated power.

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