基于DPM模型的光伏组件冲蚀磨损特性分析

摘要

Erosion wear behavior of sand grains on the surface of photovoltaic (PV) modules was simulated in sandstorm gas-solid two-phase flow using discrete phase model(DPM). The influence of wind speed, sand particle size and installation inclination on the surface erosion rate of PV modules was analyzed. The results show that the erosion rate of PV modules varies exponentially with wind speed, and also changes obviously with different installation inclinations. So that, wind speed and installation inclination are two main factors that affect surface erosion rate of PV modules.%文章运用离散相模型(DPM)模拟了风沙气固两相流中的沙粒对光伏组件表面的冲蚀磨损,分析了不同的风速、沙粒粒径、安装倾角下,光伏组件表面冲蚀率的变化情况.研究结果表明:光伏组件表面的冲蚀率随着风速的变化呈指数变化趋势;光伏组件表面冲蚀率随着安装倾角的变化而发生明显变化.这说明风速和安装倾角是影响光伏组件表面冲蚀率的两个重要因素.