【作者】 赵慧欣；

【导师】 田德；

【作者基本信息】 内蒙古农业大学 ， 农业机械化工程， 2005， 硕士

【摘要】 通过对螺旋桨式叶轮的分析与研究,采用葛劳渥(Glauert)气动方法,研制了一种三叶片螺旋桨式叶轮。该叶片翼型采用 NACA63-412,叶尖形状为半圆形,叶片弦长从距叶轮中心 110mm 处 190mm 向尖部 107mm 递减,其安装角也相应的从 19°向尖部 0°递减。经风力发电机输出特性的实验验证,螺旋桨式叶轮起动风速为3.5m/s,在自然风速为 7.4m/s 时,风能利用系数最大为 0.40,输出功率达 313.9W;自然风速为 9.8m/s 时,输出功率达到发电机额定功率 600W。通过和直径相同的浓缩风能型风力发电机专用六叶片叶轮进行对比实验,实验结果表明采用螺旋桨式叶轮后,螺旋桨式叶轮的风能利用系数在 4m/s~13m/s 是现有专用六叶片叶轮的 1.82倍,提高了风能利用系数,增加了现有风力发电机的输出功率。同时通过理论分析计算可得,在自然风速 4m/s~8m/s 区段,螺旋桨式叶轮浓缩风能型风力发电机的输出功率是螺旋桨式叶轮普通型风力发电机输出功率的 3.12 倍,为该型风力发电机向中、大型机组发展奠定了理论与技术基础。更多还原

【Abstract】 By the analysis and study of the propeller rotor, adopt Glauert pneumatic method to design and produce a rotor of three blades propeller. The aerofoil of blade adopt NACA63-412, the blade tip is half a circle, chords are decrease from 190mm at 110mm of the rotor center to 107mm at the rotor tip and setting angles accordingly decrease from 19°to 0°. By experimental validation of generator output characteristic, the start-up wind speed of the rotor is 3.5m/s. When the natural speed is 7.4m/s, the maximum rotor power coefficient is 0.40 and the output power is 313.9W; when the natural speed is 9.8m/s, the output power rose up to the generator rating power of 600W. By the contrast experiment study of the same diameter six blades of The Concentrated Wind Energy Turbine, the experiment result is that the rotor power efficiency of propeller rotor is 1.82 times of six blades of The Concentrated Wind Energy Turbine as 4m/s~13m/s,increasing the rotor power efficiency and the output power of The Concentrated Wind Energy Turbine. At the same time, through the theory analysis and account, as the natural wind speed is the range of 4m/s~8m/s, the output power of propeller rotor is 3.12 times of output power of propeller rotor general wind turbine, and these founded the theory and technology base for the development of the middle-mode and big-mode turbine.更多还原