A selected literature review of efficiency improvements in hydraulicturbines
2016-01-14
org.kosen.entty.User@26903dbc
김채형(avalonkch)
행사&학회소개
1.Introduction
2. Mathematical model for predicting turbine efficiency
3. Design factor affecting turbine sefficiency
3.1.Introduction
3.2. Influence of surface roughness and wear
3.3. Influence of gap clearances on the internal leakage
3.4. Others
3.5. Discussion
4. Performance testing
4.1.Modeltests
4.2. Fieldtests
4.3. Discussion
5. CFD method for promoting the research and design
5.1.Improving pressure recovery in draft tube
5.2. Cavitation research by CFD
5.3. CFD in tip clearance
5.4. Prediction of erosion in hydraulic turbines
5.5. CFD in off-design
5.6. Discussion
6. Efficiency improvement in turbines
6.1.Better design or optimization
6.2. Improve the surface performance
6.3. Improvements to hydropower production
7.Conclusion
2. Mathematical model for predicting turbine efficiency
3. Design factor affecting turbine sefficiency
3.1.Introduction
3.2. Influence of surface roughness and wear
3.3. Influence of gap clearances on the internal leakage
3.4. Others
3.5. Discussion
4. Performance testing
4.1.Modeltests
4.2. Fieldtests
4.3. Discussion
5. CFD method for promoting the research and design
5.1.Improving pressure recovery in draft tube
5.2. Cavitation research by CFD
5.3. CFD in tip clearance
5.4. Prediction of erosion in hydraulic turbines
5.5. CFD in off-design
5.6. Discussion
6. Efficiency improvement in turbines
6.1.Better design or optimization
6.2. Improve the surface performance
6.3. Improvements to hydropower production
7.Conclusion
보고서작성신청
수차의 효율은 작동 성능이나 경제성에 주요한 영향을 미치는 요소이다. 따라서 수차의 성능자료는 수차를 선택하고 설계하는데 있어 중요한 자료이다. 하지만 터빈의 특성에 영향을 주는 유니버설 자료를 얻는 것은 힘들다. 본 자료에서는 경험식에 근거하여 커미션닝 데이터, 정격수두, 정격유량 등의 설계 요소에 따른 최적 성능 곡선 자료를 제시하고 있으며, 특히 실질적으로 전반적인 터빈 성능을 증대시킬 수 있는 디자인 요소에 중점을 두고 있다.