Numerical Simulation of Fluid-Solid Coupling for Solar Photovoltaic Module in Periodic Flow Field

IF 1.204 Q3 Energy
Bin Dai, Ankang Kan
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引用次数: 0

Abstract

Three-dimensional simulations using Reynolds-averaged Navier–Stokes equations were conducted to evaluate wind loads and structural displacements of ground-mounted solar panels under different flow conditions. The panels were arranged in a regular array consisting of 3 rows and 5 columns, with each row comprising 4 × 4 sub-panels inclined at 45°. To conserve computational resources, periodic flow conditions were applied to a single panel by specifying the pressure differential and inlet velocity ranging from 25 to 50 m/s. The fluid-solid coupling, fixed geometry multi-physics field coupling feature was employed to couple the boundary loads due to fluid flow from the fluid to the solid domain. Our results reveal the existence of circulation zones between the panels in the array. The pressure at the upper corners of the solar panel increases sharply with velocity, leading to a larger structural displacement in this region. As the wind speed increases, the safety factors obtained from the simulation for the solar panel support module and the glass panel are 22.8, 8.9, and 5.7 m/s, respectively. And the safety factor of the support frame and support rod junction and the upper row of glass panels decreases significantly. Therefore, the failure characteristics of this part of the structure should be considered in case of a sudden change in wind speed.

Abstract Image

Abstract Image

周期流场中太阳能光伏组件的流固耦合数值模拟
摘要 使用雷诺平均纳维-斯托克斯方程进行了三维模拟,以评估不同流动条件下地面安装的太阳能电池板的风荷载和结构位移。太阳能电池板以 3 行 5 列的规则阵列排列,每行包括 4 × 4 个倾斜 45° 的子电池板。为节省计算资源,通过指定压差和 25 至 50 m/s 的入口速度,对单个面板应用了周期性流动条件。采用流固耦合、固定几何多物理场耦合功能,将流体流动产生的边界载荷从流体域耦合到固体域。我们的结果表明,阵列中的面板之间存在循环区域。太阳能电池板上角的压力随速度急剧增加,导致该区域的结构位移增大。随着风速的增加,模拟得到的太阳能电池板支撑模块和玻璃面板的安全系数分别为 22.8、8.9 和 5.7 m/s。而支撑框架和支撑杆连接处以及上排玻璃板的安全系数则明显下降。因此,应考虑风速突变时这部分结构的失效特性。
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来源期刊
Applied Solar Energy
Applied Solar Energy Energy-Renewable Energy, Sustainability and the Environment
CiteScore
2.50
自引率
0.00%
发文量
0
期刊介绍: Applied Solar Energy  is an international peer reviewed journal covers various topics of research and development studies on solar energy conversion and use: photovoltaics, thermophotovoltaics, water heaters, passive solar heating systems, drying of agricultural production, water desalination, solar radiation condensers, operation of Big Solar Oven, combined use of solar energy and traditional energy sources, new semiconductors for solar cells and thermophotovoltaic system photocells, engines for autonomous solar stations.
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