The Heliostat Design Wind Loads Spreadsheet

Wind load predictions for heliostats are not provided in design codes because of their non-standard shape and the changes in wind velocity and turbulence in the lowest 10 m of the atmospheric boundary layer (ABL). The Heliostat Design Wind Loads Spreadsheet estimates the design wind loads on different heliostat sizes based on:(1) the dependence of wind load coefficients on turbulence intensity derived in our wind tunnel experiments,(2) the expected wind speed and turbulence intensity profiles in the full-scale ABL.Mean and peak design loads are calculated for a square-shaped heliostat based on the mean wind speed and the relevant aerodynamic coefficient. Critical load cases show the maximum value of the heliostat loads and aerodynamic coefficients for each load case.

鉴于太阳跟踪器非标准形状及其在近地气层最低10米范围内风速和湍流变化的特殊性，设计规范中未提供其风载预测。太阳跟踪器设计风载电子表格基于以下因素估算不同尺寸太阳跟踪器的设计风载：(1) 风载系数对湍流强度的影响，该影响是通过我们的风洞实验得出的；(2) 在全尺度近地气层中预期的风速和湍流强度分布。针对方形太阳跟踪器，基于平均风速和相关的空气动力学系数，计算得到平均和峰值设计风载。关键载荷情况展示了每个载荷情况下太阳跟踪器载荷及空气动力学系数的最大值。