单板太阳能干燥室内部风场的模拟与优化

Simulation and Optimization of Wind Field inside Veneers Solar Drying Kiln

为了优化顶风式单板太阳能干燥室内部风速场分布的均匀性,提高单板干燥质量,节约能源,通过计算机软件模拟干燥窑内顶部风机不同风速(3、5、7 m/s)、材堆距离干燥窑侧壁不同位置(0.2、0.3、0.4、0.5、0.6 m)时的干燥窑内部风场分布情况,得出最优的模拟结果,之后再与实际情况进行对比验证。结果表明,当顶部风机风速为5 m/s,材堆与干燥窑侧壁的距离为0.4 m时,内部干燥介质的风速场最为均匀,模拟结果准确,与实际值的误差在10%以内。通过计算机模拟的方法对木材干燥室内部风速场进行数值模拟,可以有效地对干燥窑内风速场的均匀性进行优化。

The experiment was conducted to optimize the uniformity of the wind speed field distribution in the interior of the top-wind solar veneer drying room, and improve the quality of veneer drying, and save energy. In order to obtain the distribution of the wind field inside the drying kiln under the optimal simulation conditions, different wind speeds(3, 5 and 7 m/s) of the top fanand the distance between the stack of materials and the drying kiln side(0.2, 0.3, 0.4, 0.5 and 0.6 m) were simulatedin the drying kiln. When the optimal simulation results are obtained, they are compared and verified with the actual situation. When the wind speed of the top fan is 5 m/s and the distance between the pile and the side of the drying kiln is 0.4 m, the wind speed field of the internal drying medium is the most uniform. At the same time, the simulation results are accurate, and the error from the actual value is within 10%. Numerical simulation of the wind speed field inside the wood drying chamber by computer simulation can effectively optimize the uniformity of the wind speed field in the drying kiln.