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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 저널정보
- 한국마린엔지니어링학회 Journal of Advanced Marine Engineering and Technology (JAMET) 한국마린엔지니어링학회지 제38권 제10호
- 발행연도
- 2014.12
- 수록면
- 1,225 - 1,231 (7page)
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This paper presents the performance characteristic of a Francis hydro turbine with an inline casing. This turbine is designed for city water supply system. Due to large changes in ground elevation with high points and low points, some systems may experience larger-than-normal required pressures in areas with low ground elevations. One way to dissipate these excess pressures is by the use of an inline-turbine instead of an inline-pressure reducing valve. For best applicability and minimal space consumption, the turbine is designed with an inline casing instead of the common spiral casing. As a characteristic of inline casing, the flow accesses to the runner in the radial direction, showing a low efficiency. The installation of vanes improves the internal flow and gives the positive encouragement to the output power. For the power transmission to the outside of the turbine casing from the runner axis, a belt passage is designed in the inline casing, as its influence, the region after the belt passage shows a relatively low output power. The clearance gap in the runner side space is considered, in which a small volume of flow is contracted into the clearance gap, forming the leakage flow. The leakage flow leads to a decrease in the efficiency.
목차
Abstract
1. Introduction
2. Inline Francis hydro turbine model
3. Numerical methods
4. Results and discussion
5. Conclusions
References
참고문헌 (11)
참고문헌 신청
1. [학술지(정기간행물)] - A. Alnaga / 2008 / Optimal design of hy-draulic turbine distributor / Journal of World Scientific and Engineering Academy and Society Transactions on Fluid Mechanics 3 (2) : 175 ~ 185
2. [학술대회논문] - P. Drtina / 1999 / Hydraulic turbines-basic principle and state-of-the-art computational fluids dy-namic applications / Proceedings of the Institution of Mechanical Engineers—Part C 213 : 85 ~ 102
4. [학술지(정기간행물)] - M. K. Shukla / 2011 / CFD analysis of 3-D flow for Francis turbine / MIT International Journal of Mechanical Engineering 1 (2) : 93 ~ 100
5. [학술지(정기간행물)] - H. J. Choi / 2013 / CFD validation of perform-ance improvement of a 500 kw Francis turbine / Journal of Renewable Energy 51 : 111 ~ 123
6. [학술지(정기간행물)] - J. C. Wu / 2007 / CFD-based design optimization for hydro tur-bines / Journal of Fluids Energy 129 (2) : 159 ~ 168
2. [학술대회논문] - P. Drtina / 1999 / Hydraulic turbines-basic principle and state-of-the-art computational fluids dy-namic applications / Proceedings of the Institution of Mechanical Engineers—Part C 213 : 85 ~ 102
4. [학술지(정기간행물)] - M. K. Shukla / 2011 / CFD analysis of 3-D flow for Francis turbine / MIT International Journal of Mechanical Engineering 1 (2) : 93 ~ 100
5. [학술지(정기간행물)] - H. J. Choi / 2013 / CFD validation of perform-ance improvement of a 500 kw Francis turbine / Journal of Renewable Energy 51 : 111 ~ 123
6. [학술지(정기간행물)] - J. C. Wu / 2007 / CFD-based design optimization for hydro tur-bines / Journal of Fluids Energy 129 (2) : 159 ~ 168
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