| Title |
Characteristics of the Distribution of Wind Force Coefficients of Solar Panels Installed on the Rooftop of a Building |
| Authors |
박민우(Park, Min-Woo) ; 백선영(Peak, Sun-Young) ; 유장열(You, Jang-Youl) ; 유기표(You, Ki-Pyo) |
| DOI |
https://doi.org/10.5659/JAIK.2024.40.12.253 |
| Keywords |
Wind Tunnel Test; Roof-mounted; Solar Panel; Wind Force Coefficient |
| Abstract |
A wind tunnel experiment was conducted to examine the distribution characteristics of wind force coefficients on both single and
array-mounted solar panels installed on rooftops. Key findings include the following: For a single solar panel, extreme values in the normal
force coefficient were observed at wind angles of 45°, 135°, 225°, and 315°, corresponding to the formation of conical vortices. This
indicates a significant influence from the building's aerodynamic effects. For array-mounted solar panels, the normal force coefficient varied
based on the wind direction and the panel’s position within the array, resulting in distinct distribution patterns. Although the panels were also
affected by building-induced conical vortices, rows 1 and 2 displayed different wind directions for extreme values due to the shielding effect.
The maximum vertical force coefficient showed a trend consistent with established standards, though the experimental results were slightly
lower. However, panels in the third row exhibited values up to 22% higher than those for single panels in absolute terms. Panels tilted at
15° and 45° produced results closely aligned with the standards. It was found that the negative pressure on panels increases due to separated
airflow at building corners. This emphasizes the need for careful consideration when designing array-mounted solar panels to account for
these effects. |