摘要
基于Glauert理论,设计水平轴潮流能发电机的无扭角叶片,计算桨距角和实度与叶片性能的关系。实验研究不同实度、不同桨距角对叶轮启动能力和效率的影响。理论和实验结果均表明:叶轮实度越大,其启动性能越好,叶轮的捕能效率越低。叶片桨距角小于45°时,叶轮启动能力和叶片桨距角的大小正相关,但桨距角超过45°以后叶轮的启动能力会随桨距角的增大而下降。
Blades without twisted angle were designed for horizontal tidal current turbine based on Glauert theory. The relationship among the turbine＇ s performance, pitch angle and solidity was calculated. The influence of pitch angle and solidity on the turbine＇ s start-up capability and efficiency was studied through experiment. Both theoretical and experimental results show that the bigger solidity improves the start-up performance and lower the power efficiency. When the pitch angle is smaller than 45°, it is positive correlation to the start-up capability of the blade; whereas, if it is more than 45°, the start-up capacity is reduced correspondingly.
出处
《太阳能学报》
EI
CAS
CSCD
北大核心
2015年第10期2417-2421,共5页
Acta Energiae Solaris Sinica
基金
2013年海洋能专项(ZJME2013ZB02)
中央高校基本科研业务费专项(09SSXT027)
关键词
实度
桨距角
启动能力
效率
solidity
pitch angle
start-up capacity
efficiency
