Photovoltaic panel back pressure

How does wind pressure affect a front-row photovoltaic panel?

Pressure distribution along the solar panel profile line. In addition to SP1 being subjected to the main wind load, the wind pressure attenuation of the rest of array a is obvious. Hence, the structure needs to focus on strengthening the structural strength of the front-row photovoltaic panels.

How does wind load affect photovoltaic panels?

The wind load on the photovoltaic panel array is sensitive to wind speed, wind direction, turbulence intensity, and the parameters of the solar photovoltaic panel structure. Many researchers have carried out experimental and numerical simulation analyses on the wind load of photovoltaic panel arrays. Table 1.

Does wind blowing from the backside of PV panels increase drag?

Inlet condition was 45 m/s steady wind, and outlet condition was set to atmospheric pressure. The results confirmed that wind blowing from the backside of floating PV systems increases drag, lift, and pressure on the first row of the PV panels.

What is the pressure distribution of a solar panel?

Pressure distributions When the wind passes through the solar panel, this exerts a pressure load on the surface of the panel. The pressure load can be described by the following coefficient: (8) C p = 2 F p ρ u 2 S where Cp is the pressure coefficient.

Why is the back space blocked for PV panels?

The 50% area of the back space of the PV panel was blocked to protect the PV panel from the wind impingement (Fig. 3). Here, the maximum drag, lift, and pressure coefficient on the panels were reduced by 75% (Tables 1 and 2).

Does wind direction affect a photovoltaic panel?

And the lift coefficient of the photovoltaic panel in the back two rows is also significantly reduced. In choi 's research, the drag and lift coefficients of PV panels are significantly higher than those of other attack angles when the wind direction is 180° (Choi et al., 2021).