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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국유체기계학회 International Journal of Fluid Machinery and Systems International Journal of Fluid Machinery and Systems Vol.11 No.3
- 발행연도
- 2018.9
- 수록면
- 304 - 311 (8page)
- DOI
- 10.5293/IJFMS.2018.11.3.304
이용수
초록· 키워드
오류제보하기
The reversible pump turbine (RPT) is a suitable machine to control fluctuations in the energy market. The usage of RPTs for this purpose will increase the number of operational mode changes of the machine. In order to reduce the response time of the machine, fast transitions between the modes of operation are necessary. Therefore, increased knowledge of how the machine operates during these fast transitions is needed. This includes the investigation of the transient characteristics for the whole operating range of the machine. This paper presents experimental results from a fast transition from pump to turbine mode. The flow rate is measured by the use of a modified pressure time method. The resulti ng transient characteristics are compared with steady state characteristics. Experiments have been preformed on a model scale reversible pump turbine in the Waterpower Laboratory at the Norwegian University of Science and Technology (NTNU). The results show that the pressure pulsations are highest at low discharge in both pump and turbine mode of operation and at runaway speed in turbine. Oscillations at runaway speed is reduced with lower opening degree on the guide vanes. The results also show a difference between the steady state and transient characteristics in the pump mode due to the inertia of the water masses.
목차
Abstract
1. Introduction
2. Experimental setup
3. Results
4. Discussion
5. Conclusion
References
참고문헌 (14)
참고문헌 신청
[학술지(정기간행물)] - Z. Zuo / 2015 / Pressure fluctuations in the vaneless space of High-head pump-turbines-A review / Renew. Sustain. Energy Rev. 41 : 965 ~ 974
[학술지(정기간행물)] - E. Egusquiza / 2015 / Condition monitoring of pump-turbines. New challenges / Meas. J. Int. Meas. Confed. 67 : 151 ~ 163
[학술지(정기간행물)] - H. Tanaka / 2011 / Vibration Behavior and Dynamic Stress of Runners of Very High Head Reversible Pump-turbines / Int. J. Fluid Mach. Syst. 4 (2) : 289 ~ 306
[학술지(정기간행물)] - L. Deyou / 2015 / Unsteady simulation and analysis for hump characteristics of a pump turbine model / Renew. Energy 77 : 32 ~ 42
[학술지(정기간행물)] - G. Olimstad / 2012 / Stability limits of reversible-pump turbines in turbine mode of operation and measurements of unstable characteristics / J. Fluids Eng. 134 (11) : 111202 ~
[학술지(정기간행물)] - E. Egusquiza / 2015 / Condition monitoring of pump-turbines. New challenges / Meas. J. Int. Meas. Confed. 67 : 151 ~ 163
[학술지(정기간행물)] - H. Tanaka / 2011 / Vibration Behavior and Dynamic Stress of Runners of Very High Head Reversible Pump-turbines / Int. J. Fluid Mach. Syst. 4 (2) : 289 ~ 306
[학술지(정기간행물)] - L. Deyou / 2015 / Unsteady simulation and analysis for hump characteristics of a pump turbine model / Renew. Energy 77 : 32 ~ 42
[학술지(정기간행물)] - G. Olimstad / 2012 / Stability limits of reversible-pump turbines in turbine mode of operation and measurements of unstable characteristics / J. Fluids Eng. 134 (11) : 111202 ~
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