한국유체기계학회 논문집 (The KSFM Journal of Fluid Machinery)

한국유체기계학회 (Korean Society for Fluid machinery)
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Design of a Pump-Turbine Based on the 3D Inverse Design Method

  • Chen, Chengcheng (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Zhu, Baoshan (Department of Thermal Engineering, Tsinghua University) ;
  • Singh, Patrick Mark (Graduate School, Department of Mechanical Engineering, Mokpo National University) ;
  • Choi, Young-Do (Department of Mechanical Engineering, Institute of New and Renewable Energy Technology Research, Mokpo National University)
  • 투고 : 2014.05.13
  • 심사 : 2014.11.17
  • 발행 : 2015.02.01
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초록

The pump-turbine impeller is the key component of pumped storage power plant. Current design methods of pump-turbine impeller are private and protected from public viewing. Generally, the design proceeds in two steps: the initial hydraulic design and optimization design to achieve a balanced performance between pump mode and turbine mode. In this study, the 3D inverse design method is used for the initial hydraulic impeller design. However, due to the special demand of high performance in both pump and reverse mode, the design method is insufficient. This study is carried out by modifying the geometrical parameters of the blade which have great influence and need special consideration in obtaining the high performance on the both modes, such as blade shape type at low pressure side (inlet of pump mode, outlet of turbine mode) and the blade lean at blade high pressure side (outlet of pump mode, inlet of turbine mode). The influence of the geometrical parameters on the performance characteristic is evaluated by CFD analysis which presents the efficiency and internal flow results. After these investigations of the geometrical parameters, the criteria of designing pump-turbine impeller blade low and high sides shape is achieved.

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참고문헌

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  8. Kerschberger, P. and Gehrer, A., 2010, "Hydraulic Development of High Specific-speed Pump-turbines by Means of an Inverse Design Method, Numerical Flow- Simulation (CFD) and Model Testing," IOP Conf. Series: Earth and Environmental Science, Vol 12, No. 012039.
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피인용 문헌

  1. Parametric Design of an Ultrahigh-Head Pump-Turbine Runner Based on Multiobjective Optimization vol.10, pp.8, 2017, https://doi.org/10.3390/en10081169
  2. Investigation on Flow Characteristics of Pump-Turbine Runners With Large Blade Lean vol.140, pp.3, 2018, https://doi.org/10.1115/1.4037787
  3. Hydrodynamic performance of a pump-turbine model in the "S" characteristic region by CFD analysis vol.39, pp.10, 2015, https://doi.org/10.5916/jkosme.2015.39.10.1017
  4. 2015년 펌프 및 수차 분야 연구동향 vol.19, pp.2, 2015, https://doi.org/10.5293/kfma.2016.19.2.060
  5. Initial Hydraulic Design and Performance Analysis of 300 MW-Class Pump-turbine Model vol.20, pp.3, 2015, https://doi.org/10.5293/kfma.2017.20.3.018
  6. CFD를 이용한 선박용 해수펌프의 공동현상에 대한 분석 vol.23, pp.4, 2017, https://doi.org/10.7837/kosomes.2017.23.4.400