Journal of Mechanical Science and Technology

The Korean Society of Mechanical Engineers (대한기계학회)
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Effects of Hub-to-Tip Ratio and Reynolds Number on the Performance of Impulse Turbine for Wave Energy Power Plant

  • Ajit Thakker (Department of Mechanical and Aeronautical Engineering, University of Limerick) ;
  • Khaleeq, Hammad-Bin (Department of Engineering, Sustainable Teknologies(Pvt.), Ltd.,) ;
  • Manabu Takao (Department of Engineering, Engineering, Matsue National College of Technology) ;
  • Toshiaki Setoguchi (Department of Mechanical Engineering, Saga University)
  • Published : 2003.11.01
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Abstract

The objective of this paper is to present the performance comparison of the impulse turbines for different diameters. In the study, the investigation has been performed experimentally by model testing for some diameters, especially 0.3 m and 0.6 m. The experiment was performed for Reynolds number range of 0.17 ${\times}$ 10$\^$5/ -1.09 ${\times}$ 10$\^$5/ and for different values of hub-to-tip ratio ν ranging from 0.6 to 0.85. As a result, it was found that the critical Reynolds number is to be around 0.5 ${\times}$ 10$\^$5/ for ν=0.6 and 0.4 ${\times}$ 10$\^$5/ for ν=0.7. For the hub-to-tip ratio, the optimum value is 0.7 when the turbine is operated at lower Reynolds number. However, its value seems to be 0.6 at higher Reynolds number in the tested range.

Keywords

References

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