Study on high pressure design of contra-rotating small hydroturbine

被引：1
作者：
Hosotani T. [1 ]
Shigemitsu T. [2 ]
Kawaguchi Y. [1 ]
Ikebuchi T. [1 ]
Ishiguro T. [1 ]
机构：
[1] Graduate School of Advanced Technology and Science, Tokushima University, 2-1 Minamijyosanjima-cho, Tokushima
[2] Graduate School of Technology, Industrial and Social Sciences, Tokushima University, 2-1 Minamijyosanjima-cho, Tokushima
来源：
International Journal of Fluid Machinery and Systems | 2019年 / 12卷 / 04期
关键词：
Contra-rotating rotor; Deflection angle; Internal flow; Performance; Small hydroturbine;
D O I：
10.5293/IJFMS.2019.12.4.268
中图分类号：
学科分类号：
摘要：
It is requested that the hydroturbine be a small size and have high performance. Therefore, we adopted contra-rotating rotors, which can be expected to achieve radial compactification and high performance. However, when the rotors become smaller, the output power of conventional contra-rotating rotors, which are composed of axial flow rotors, is low. In order to achieve small size, high performance and high output power simultaneously, we propose a new type of contra-rotating rotors, which are composed of a hybrid rotor and a centrifugal rotor. In the present paper, we focus on deflection angle of the hydroturbine composed of these rotors as a first step of this research, and investigate performance by the numerical analysis. As a result, we clarified that there is a possibility that even a negative deflection angle functions as a hydroturbine unlike the conventional contra-rotating rotors and leads to best performance. © 2019, Turbomachinery Society of Japan. All rights reserved.
引用
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页码：268 / 276
页数：8
相关论文
共 12 条
  • [1] Furukawa A., Okuma K., Tagaki A., ‘Basic Study of Low Head Water Power Utilization by Using Darrieus-type Turbine, ’’ Trans. JSME (In Japanese), 64, 624, pp. 2534-2540, (1998)
  • [2] Kanemoto T., Inagaki A., Misumi H., Kinoshita H., ‘Development of Gyro-type Hydraulic Turbine Suitable for Shallow Stream (1st Report, Rotor Works and Hydroelectric Power Generation), Trans. JSME (In Japanese), 70, 690, pp. 413-418, (2004)
  • [3] Matsui J., ‘Internal Flow and Performance of the Spiral Water Turbine, Turbomachinery, 38, 6, pp. 358-364, (2010)
  • [4] Ikeda T., Iio S., Tatsuno K., Performance of nano-hydraulic turbine utilizing waterfalls, Renewable Energy, 35, pp. 293-300, (2010)
  • [5] Nakajima M., Iio S., Ikeda T., Performance of Savonius Rotor for Environmentally Friendly Hydraulic Turbine, Journal of Fluid Science and Technology, 3, 3, pp. 420-429, (2008)
  • [6] Iio S., Uchiyama F., Sonoda C., Ikeda T., ‘Performance Improvement of Savonius Hydraulic Turbine by using a Shield Plate, Turbomachinery, 37, 12, pp. 743-748, (2009)
  • [7] Shigemitsu T., Fukutomi J., Tanaka C., Challenge to Use Small Hydro Power by Contra-Rotating Small Hydro-Turbine, Renewable Energy in the Service of Mankind, 1, pp. 317-327, (2014)
  • [8] Sonohata R., Fukutomi J., Shigemitsu T., Study on the contra-rotating small-sized axial flow hydro turbine, Open Journal of Fluid Dynamics, 2, 4A, pp. 318-323, (2012)
  • [9] Shigemitsu T., Fukutomi J., Tanaka C., Performance and Internal Flow of Contra-Rotating Small Hydro Turbine, (2013)
  • [10] Shigemitsu T., Fukutomi J., Tanaka C., Unsteady Flow Condition of Contra-Rotating Small-Sized Hydro Turbine, (2013)
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