• Proceedings of the Korea Water Resources Association Conference
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• 2009.05a
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• pp.1632-1636
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• 2009

소수력자원은 신재생에너지 중에서도 온실가스 배출량이 가장 적고 에너지밀도가 매우 높기 때문에 개발할 가치가 큰 청정부존자원으로 평가되고 있다. 본 연구는 프란시스 수차의 국산화 개발 연구로써 프란시스수차 외형설계에 필요한 기본사항과 제작, 프란시스수차의 설치 및 시운전, 프란시스수차의 성능시험을 수행하였다. 이에 대한 분석 결과, 개발된 프란시스수차는 기계적인 성능과 수력학적인 성능면에서 만족할 만한 결과를 보여주어 프란시스수차의 상용화에 대한 기반이 마련되었다.

• 한국신재생에너지학회:학술대회논문집
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• 2005.11a
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• pp.323-330
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• 2005

프란시스수차의 경우 다른 종류의 수차보다 효율, 설치 및 운영면에서 많은 장점을 갖고 있으며 표준화를 통하여 가격을 크게 낮출 수 있기 때문에 우리 나라의 소수력발전입지에 적용하기가 매우 좋은 수차라고 할 수 있다. 수차설계자료를 외국의 수차제작사들이 공개하지 않으며, 국내의 수차설계경험의 부족으로 인하여 수차설계기술이 확립되지 않은 상황에서 국내 소수력자원특성에 적합한 프란시스수차의 국산화개발 기술이 확립되었다.

• JOURNAL OF ELECTRICAL WORLD
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• s.465
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• pp.30-34
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• 2015

• Water for future
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• v.51 no.8
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• pp.25-29
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• 2018

• 전기의세계
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• v.65 no.9
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• pp.27-32
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• 2016

• 유체기계공업학회:학술대회논문집
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• 2006.08a
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• pp.53-56
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• 2006

The hydraulic performances of a Francis turbine which had been designed and tested by IMHEF were calculated with a commercial code and compared with the IMHEF test results. The non-dimensional specific speed of the turbine is 0.5, the runner exit diameter 0.4m and maximum efficiency 93.1% respectively. To make the calculation of the turbine more exact, the stay vanes, the guide vane, the runner and the draft tube were calculated simultaneously. The calculation results gave a quite good agreement with the IMHEF test data, and therefore it is expected that the present calculation technique will be utilized for the hydraulic design of efficient Francis turbines.

• 한국신재생에너지학회:학술대회논문집
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• 2011.05a
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• pp.207.1-207.1
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• 2011

The performance of a francis turbine is studied by applying a new performance evaluation tester. the performance of a francis turbine is predicted under several operating conditions and the prediction results are compared with model test data. As a result, it is demonstrated that the present method can predict the performance of a francis turbine with high accuracy and has usefullness as an engineering tool on the performance of hydraulic turbines.

• 한국신재생에너지학회:학술대회논문집
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• 2005.06a
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• pp.447-447
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• 2005

• New & Renewable Energy
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• v.10 no.4
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• pp.9-15
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• 2014

In this study pressure and shaft torque pulsation were measured with variation of head and flow during the model test for a 15 MW Francis Turbine. Pressure pulsations were measured at the inlet of the spiral casing and 4 points in the cone of the diffuser and shaft torque pulsation at the upper position of the turbine. The maximum amplitude of pressure pulsation appeared 2.03% of the maximum rated head with the frequency of 25% of the rated revolution and at the guide vane opening of $10^{\circ}$. Shaft torque pulsation appeared 0.01% of the rated shaft torque, fairly low value. Air was admitted through the cone and pressure pulsation gradually decreased with increase of air flow and kept nearly constant after 5% of the rated flow. A new Francis turbine of which specific speed is 115 m-kW had been designed to rehabilitate the old one and the model test was performed at EPFL. The commercial code, STAR-$CCM^+$ was used for numerical simulation of flow.

• The KSFM Journal of Fluid Machinery
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• v.16 no.4
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• pp.10-14
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• 2013

In this study, we have numerically investigated the hydraulic efficiency with various values of discharge angle($11^{\circ}$, $12^{\circ}$, $14^{\circ}$, $15^{\circ}$, $17^{\circ}$, $18^{\circ}$, $20^{\circ}$) in the Francis turbine of hydropower generation under 15MW with fixed values of head range of 151m and flow rate($10.97m^3/s$). We also conducted the numerical analysis with constant inlet angle in the Francis turbine using the commercial code, ANSYS CFX. Hydraulic characteristics for different values of the runner blade angle are investigated. The results showed that the change of discharge angles significantly influenced on the performance of the turbine hydraulic efficiency.