지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
커뮤니티
연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.12
- 수록면
- 5 - 13 (9page)
- DOI
- 10.5293/kfma.2019.22.6.005
이용수
초록· 키워드
오류제보하기
In the present study, J-Groove has applied in the diffuser for swirl intensity suppression. The swirl flow mostly occurred at the draft tube of the hydro turbine. The swirl flow is an undesirable flow phenomenon, which is a cause of pressure fluctuation, mechanical vibration, and noise. The performance analysis of the pump turbine was conducted by experiment and CFD analysis. In the pump turbine, the swirl flow is significant in the turbine mode rather than pump mode. The swirl intensity is high at partial load conditions. Pump-turbine performance has deteriorated in off-design conditions due to the high swirl intensity. The J-Groove installation helps to decrease the swirl intensity at the partial load condition without affecting the performance of the pump turbine.
목차
ABSTRACT
1. Introduction
2. Experimental and Numerical Methods
3. Results and Discussion
4. Conclusion
References
참고문헌 (20)
참고문헌 신청
Biname, M / 2017 / Investigation on pump as turbine(PAT)technical aspects for micro hydropower schemes : A state-of-the srt review / Renewable and Sustainable Energy Reviews 79:148~179
Nicolet, C / 2010 / On the Upper Part Load Vortex Rope in Francis Turbine: Experimental Investigation / IOP Conference Series: Earth and Environmental Science 12(1):012053
Rodriguez, D / 2016 / High Load Vortex Oscillations Developed in Francis Turbines / IOP Conference Series: Earth and Environmental Science 49(8):082006
Qian, Z-D / 2007 / Numerical Simulation and Analysis of Pressure Pulsation in Francis Hydraulic Turbine with Air Admission / Journal of Hydrodynamics, Ser. B 18(4):467~472
Papillon, B / 2002 / Methods for Air Admission in Hydroturbines / Proc. of the 21st IAHR Symposium on Hydraulic Machinery and Systems
Nicolet, C / 2010 / On the Upper Part Load Vortex Rope in Francis Turbine: Experimental Investigation / IOP Conference Series: Earth and Environmental Science 12(1):012053
Rodriguez, D / 2016 / High Load Vortex Oscillations Developed in Francis Turbines / IOP Conference Series: Earth and Environmental Science 49(8):082006
Qian, Z-D / 2007 / Numerical Simulation and Analysis of Pressure Pulsation in Francis Hydraulic Turbine with Air Admission / Journal of Hydrodynamics, Ser. B 18(4):467~472
Papillon, B / 2002 / Methods for Air Admission in Hydroturbines / Proc. of the 21st IAHR Symposium on Hydraulic Machinery and Systems
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