Experimental studies on a high-performance Savonius windmill

高性能Savonius风车的实验研究

• 批准号: 07558183
• 负责人: KITANI Osamu
• 金额: $ 1.66万
• 依托单位: The University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1997
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07558183/
• 关键词: natural energy; wind energy; windmill; Savonius rotor; concentrator

For the purpose of improving the performance of the Savonius windmill, a wind concentrator was mounted around the windmill. The power characteristics of the windmill and the effects of the concentrator were investigated from the results of experiments carried out by using a wind tunnel. The power output was measured under two different loaded conditions. One of them was the control of rotation speed with a stepping motor, and the other was a loading with an electromagnetic brake. The results are summarized as follows,1.The Bach type 2 bucket-rotor offered the highest power output in most of all experimental conditions.2.The tested concentrator had a cross-sectional area of 3 times larger than the wind mill rotor. In some cases, it provided about 60% improvement in power. Those results showed the effects of wind concentration.3.In spite of the improvement of the power output, the power coefficient was decreased with increase in crosssectional area. The concentrator was considered to be susceptible to improvement.4.The concentrator with 8 panels attached at the panel angle of 45ﾟprovided the best experimental results.5.Under the loaded condition with an electromagnetic brake, the power output was measured smaller. Friction was considered to be one of the reasons, but it has not been clear.6.The maximum power output was roughly proportional to the cube of the wind velocity.

为了提高萨伏纽斯风车的性能，在风车周围安装了风力集中器。通过风洞试验研究了风力机的功率特性和集中器的作用。在两种不同的负载条件下测量功率输出。其中一种是用步进电机控制转速，另一种是用电磁制动器加载。结果表明：1. Bach型2斗式转子在大多数实验条件下提供了最高的功率输出; 2.测试的集中器的横截面积是风力机转子的3倍。在某些情况下，它提供了约60%的功率改进。结果表明，风浓度的影响。3.尽管功率输出的提高，但功率系数随着横截面积的增加而降低。实验结果表明：4.采用8块板，板角为45 °的聚光器效果最好; 5.在带电磁制动器的负载条件下，测得的功率输出较小。摩擦被认为是原因之一，但一直不清楚。6.最大功率输出大致与风速的立方成正比。

项目成果

Wu, L., O. Kitani et al: "Experimental Study on the Efficiency Increase of the Savonius Windmill" Proceedings of the Internationa Symposium on Automation. Vol.3. 85-92 (1995)

Wu, L., O. Kitani 等：“萨沃纽斯风车效率提高的实验研究”国际自动化研讨会论文集。

呉金雷 ほか: "サボニウス風車の効率向上に関する研究(第2報)-集風装置に適するロータの形状について-" 農業機械学会誌. 58(3). 3-7 (1996)

Jinlei Wu等：“提高Savonius风力涡轮机效率的研究（第2次报告）-关于适合集风器的转子形状-”日本农业机械学会杂志58（3）。 (1996)

呉雷 他: "サボニウス風車の効率向上に関する研究(第1報)-集風装置の特性について-" 農業機械学会誌. 58(2). 11-17 (1996)

吴磊等：“提高Savonius风力涡轮机效率的研究（第1次报告）-集风器的特性-”日本农业机械学会杂志58（2）（1996）。