Development of eco water turbine adoptable for extremely low head

以开发生态小型水轮机为目标，利用水头极低、水头小于2m的水力能量进行高效发电，重点研究了叶片和流道的形状、复杂的叶片型面，并对提高水轮机性能进行了研究。对瀑布式水轮机和萨沃尼乌斯水轮机进行了试验研究。结果表明，对于瀑布式水轮机，横流转轮在较宽的转速范围内表现出比脉冲转轮更好的性能。结果表明，弧形流道能有效控制瀑布的位置，使其稳定生成成为可能。采用亲水叶片和疏水叶片对萨沃尼乌斯转轮进行的性能测试没有明显差异。

It aimed at developing eco small water turbine that it was possible generate power with high efficiency from hydraulic energy of extremely low head, less than 2 m. It was especially focused on shape of blade and channel, sophisticated blade surface and investigated for improvement of turbine performance. Two kinds of turbines, waterfall type turbine and Savonius turbine, were tested. As a consequence for waterfall type turbine the cross flow shaped runner shows better performance under wider range of rotation speed than that of the impulse runner. The curved shaped channel was shown to be effective in control of waterfall position, and then it was possible for stable generation. Theperformance test adopted hydrophilic or hydrophobic blades on Savonius runner was not observed significant difference.