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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2015.6
- 수록면
- 46 - 52 (7page)
이용수
초록· 키워드
오류제보하기
Pump-turbine system is widely used by the hydropower industry for stabilizing the electrical grid in the vast growing economy of most developed countries. This study only investigates the Fluid-structure Interaction (FSI) analysis of the pump-turbine system at various operating conditions. The FSI analysis can show how reliable each component of the system is by providing the engineer with a better understanding of high stress and deformation points, which could reduce the lifespan of the pump-turbine. Pump-turbine components are categorized in two parts, pressurized static parts and movable stressed parts. The fixed parts include the spiral casing, top and bottom cover, stay vane and draft tube. The movable parts include guide vanes and impeller blades. Fine hexahedral numerical grids were used for CFD calculation and fine tetrahedral grids were used for structural analysis with imported load solution mapping greater than 90 %. The maximum equivalent stress are much smaller than the material yield stress, and the maximum equivalent stress showed an increasing tendency with the varying of operating conditions from partial to excessive at both modes. In addition, the total deformation of all the operating conditions showed a small magnitude, which have quite small influence on the structural stability. It can be conjectured that this system can be safely implemented.
목차
ABSTRACT
1. Introduction
2. Pump-turbine model and Numerical methods
3. Results and Discussion
4. Conclusions
References
참고문헌 (6)
참고문헌 신청
[인터넷자원] - / / Pumped-Storage Plants in Korea
[학술대회논문] - Hübner, B. / 2010 / Application of Fluid-structure Coupling to Predict the Dynamic Behavior of Turbine Components / IOP Conf. Series:Earth and Environmental Science 12 12 : 012009 ~
[학술지(정기간행물)] - Manish, M. / / FE Analysis Of Runner Blade For Small Bulb Turbine / Journal of Mechanical and Civil Engineering 11 : 73 ~ 77
[학술지(정기간행물)] - Xiao, R. F. / 2008 / Dynamic Stresses in a Francis Turbine Runner Based on Fluid-Structure Interaction Analysis / Tsinghua Science and Technology 5 : 587 ~ 592
[학술지(정기간행물)] - Rama, S. R. G. / 2003 / Probabilistic Study of Fluid Structure Interaction / International Journal of Engineering Science 41 : 271 ~ 282
[학술대회논문] - Hübner, B. / 2010 / Application of Fluid-structure Coupling to Predict the Dynamic Behavior of Turbine Components / IOP Conf. Series:Earth and Environmental Science 12 12 : 012009 ~
[학술지(정기간행물)] - Manish, M. / / FE Analysis Of Runner Blade For Small Bulb Turbine / Journal of Mechanical and Civil Engineering 11 : 73 ~ 77
[학술지(정기간행물)] - Xiao, R. F. / 2008 / Dynamic Stresses in a Francis Turbine Runner Based on Fluid-Structure Interaction Analysis / Tsinghua Science and Technology 5 : 587 ~ 592
[학술지(정기간행물)] - Rama, S. R. G. / 2003 / Probabilistic Study of Fluid Structure Interaction / International Journal of Engineering Science 41 : 271 ~ 282
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UCI(KEPA) : I410-ECN-0101-2016-554-001579920