Influence of Guide Vane Setting in Pump Mode on Performance Characteristics of a Pump-Turbine

Deyou Li; Hongjie Wang; Torbjørn K. Nielsen; Ruzhi Gong; Xianzhu Wei; Daqing Qin

doi:10.5293/IJFMS.2017.10.2.154

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자료유형: 학술저널

저자정보: Deyou Li (Harbin Institute of Technology) Hongjie Wang (Harbin Institute of Technology) Torbjørn K. Nielsen (Norwegian University of Science and Technology) Ruzhi Gong (Harbin Institute of Technology) Xianzhu Wei (Harbin Institute of Technology) Daqing Qin (Harbin Institute of Technology)

저널정보: 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.10 No.2

발행연도: 2017.6

수록면: 154 - 163 (10page)

DOI: 10.5293/IJFMS.2017.10.2.154

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Performance characteristics in pump mode of pump-turbines are vital for the safe and effective operation of pumped storage power plants. However, the head characteristics are different under different guide vane openings. In this paper, 3-D steady simulations were performed under 13mm, 19mm and 25mm guide vane openings. Three groups of operating points under the three GVOs were chosen based on experimental validation to investigate the influence of guide vane setting on flow patterns upstream and downstream. The results reveal that, the guide vane setting will obviously change the flow pattern downstream, which in turn influences the flow upstream. It shows a strong effect on hydraulic loss (power dissipation) in the guide and stay vanes. It is also found that the hydraulic loss mainly comes from the flow separation and vortices. In addition, in some operating conditions, the change of guide vane opening will change the flow angle at the runner inlet and outlet, which will change the Euler momentum (power input). The joint action of Euler momentum and hydraulic loss results in the change of the head characteristics.

#Pump-turbine #Guide vane setting #Performance characteristic #Euler theory #Hydraulic loss #Vortices

참고문헌 (15)

참고문헌 신청

[학술대회논문] - Gentner, C. / 2010 / Analysis of Unstable Pump Characteristics of Pump Turbines / 16th International Seminar on Hydropower Plants-Reliable Hydropower for a Safe and Sustainable Power Production

[학술지(정기간행물)] - Yin, J. L. / 2010 / Performance Prediction and Flow Analysis in the Vaned Distributor of a Pump Turbine under Low Flow Rate in Pump Mode / Science China Technological Sciences 53 (12) : 3302 ~ 3309

[학술지(정기간행물)] - Li, D. / 2015 / Fluid Flow Analysis of Drooping Phenomena in Pump Mode for a Given Guide Vane Setting of a Pump-Turbine Model / Journal of Zhejiang University-Science A (Applied Physics & Engineering) 16 (11) : 851 ~ 863

[학술지(정기간행물)] - Li, D. / 2015 / Unsteady Simulation and Analysis for Hump Characteristics of a Pump Turbine Model / Renewable Energy 77 : 32 ~ 42

[학술지(정기간행물)] - Li, D. / 2014 / Frequencies Spectrum Analysis for Hump Characteristic in a Pump Turbine / IET Conference Publications CP658 : 1 ~ 6

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