Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades

Selçuk Keçel; H. Güçlü Yavuzcan; Adnan Sözen

Research Article

Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades

Year 2017, Volume: 20 Issue: 1, 241 - 249, 01.03.2017

Selçuk Keçel H. Güçlü Yavuzcan Adnan Sözen

Abstract

This study reviews velocity-pressure changes in spiral case, rotor and outlet pipes, force-torque values affecting the turbine rotor, vortexes in the outlet pipe, and pressure changes and vibration effects on two models with different numbers of rotor blades. The study evaluates the effect of different numbers of rotor blades on the flow and the effects on turbine components to obtain maximum turbine power. Furthermore, this study evaluates the relationship between the number of rotor blades and guide rotor blades on velocity-pressure interactions. The analysis determined the turbine rotor blade number to be 17 (Model 1) and 20 (Model 2) and the wicket gate angle was altered between 12°-48° to analyze the effects on turbine characteristics (velocity, pressure, torque, vortex, and power).

Keywords

Design of Francis Turbine, Computational Fluid Dynamics, Turbomachinery

References

1. Čarija Z, Z. Mrša, Complete Francis turbine flow simulation for the whole range of discharges. In: 4th International Congress of Croatian Society of Mechanics, Bizovac, Croatia, 105–110,(2003).
2. Ruofu X, Zhengwei W., Yongyao L., “Dynamic Stresses in A Francis Turbine Runner Based On Fluid-Structure Interaction Analysis”, Tsinghua Sci Technology,13(5): 587–592, (2008).
3. Choi H. J., Mohammed A.Z., Hyoung-Woon R., Pil-Su H., Sueg-Young O., Young-Ho L., “CFD Validation of Performance Improvement of a 500 kW Francis Turbine”, Renewable Energy, 54: 111-123, (2003).
4. Saaed, R.A., Galybin A.N., Popov V., “Modelling of flow-induced stresses in a Francis turbine runner”, Advances in Engineering Software, 41: 1245–1255,(2010).
5. Okyay, G., Çelebioğlu K., Aydın İ., Ger A.M., “Design of a Francis Type Water Turbine Using Computational Fluid Dynamics Methods”, Nuclear & Renewable Energy Resources Conference With International Participation, Ankara-Turkey, 388-394, (2009).
6. Chen, W.C., K. Celebioglu, “Structural Analysis of Francis Type Turbine using Finite Element Method”, In: Nuclear & Renewable Energy Resources Conf. with Int. Particip., Ankara-Turkey, 378-383, (2009).
7. Jain S., Saini R. P., Kumar A., “CFD Approach for Prediction of Efficiency of Francis Turbine”, IGHEM, AHEC, IIT, Roorkee, India, (2010).
8. Pennacchi P., Chatterton S., Bachschmid N., Pesatori E., Turozzi G., “A Model to Study the Reduction of Turbine Blade Vibration Using The Snubbing Mechanism”, Mechanical Systems and Signal Processing, 25: 1260–1275, (2011).
9. Zhanga H., L. Zhang, “Numerical Simulation of Cavitating Turbulent Flow in a High Head Francis Turbine at Part Load Operation with Openfoam”, International Conference on Advances in Computational Modeling and Simulation, Procedia Engineering 31: 156–165, (2012).
10. Bing B. B., Zhang L., Guo T., Liu C. Analysis of Dynamic Characteristics of the Main Shaft System in a Hydro-turbine Based on ANSYS, Procedia Engineering, 31:654 – 658, (2012).
11. Nilsson H., Davidson L. A., “Numerical Comparison of Four Operating Conditions in a Kaplan Water Turbine”, Focusing on Tip Clearance Flow Published in the proceedings of the 20th IAHR Symposium,Charlotte, North Carolina, U.S.A. http://www.hcipub.com/iahr2000
12. Başeşme H., Hydroelectric Power Plants, General Directorate of EUAS, Ankara, 15-95, (2003).
13. Cengel Y., Cimbala J.M., Fluid Mechanics: Fundamentals and Applications, Ed. 3, McGraw-Hill, New York, USA,(2014).
14. ANSYS Inc., Fluent Theory Guide, Southpointe Technology Drive Canonsburg, USA,(2011).
15. Versteeg H.K., Malalasekera W., An Introduction to Computational Fluid Dynamics The Finite Volume Method, Pearson Prentice Hall Second edition, 1-16.,(2007).
16. Sözen A., Keçel, S., Yavuzcan H.G., “The Effect of the Angle of The Wicket Gate on Turbine Efficiency And Strength in Francis Type Turbines”, Journal of Gazi University Engineering and Architecture Faculty, 29(2):243-252, (2014).

Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades

Year 2017, Volume: 20 Issue: 1, 241 - 249, 01.03.2017

Selçuk Keçel H. Güçlü Yavuzcan Adnan Sözen

Abstract

This study reviews velocity-pressure changes in spiral case, rotor and outlet pipes, force-torque values affecting the turbine rotor, vortexes in the outlet pipe, and pressure changes and vibration effects on two models with different numbers of rotor blades. The study evaluates the effect of different numbers of rotor blades on the flow and the effects on turbine components to obtain maximum turbine power. Furthermore, this study evaluates the relationship between the number of rotor blades and guide rotor blades on velocity-pressure interactions. The analysis determined the turbine rotor blade number to be 17 (Model 1) and 20 (Model 2) and the wicket gate angle was altered between 12°-48° to analyze the effects on turbine characteristics (velocity, pressure, torque, vortex, and power).

Keywords

Design of Francis Turbine, Computational Fluid Dynamics, Turbomachinery

References

1. Čarija Z, Z. Mrša, Complete Francis turbine flow simulation for the whole range of discharges. In: 4th International Congress of Croatian Society of Mechanics, Bizovac, Croatia, 105–110,(2003).
2. Ruofu X, Zhengwei W., Yongyao L., “Dynamic Stresses in A Francis Turbine Runner Based On Fluid-Structure Interaction Analysis”, Tsinghua Sci Technology,13(5): 587–592, (2008).
3. Choi H. J., Mohammed A.Z., Hyoung-Woon R., Pil-Su H., Sueg-Young O., Young-Ho L., “CFD Validation of Performance Improvement of a 500 kW Francis Turbine”, Renewable Energy, 54: 111-123, (2003).
4. Saaed, R.A., Galybin A.N., Popov V., “Modelling of flow-induced stresses in a Francis turbine runner”, Advances in Engineering Software, 41: 1245–1255,(2010).
5. Okyay, G., Çelebioğlu K., Aydın İ., Ger A.M., “Design of a Francis Type Water Turbine Using Computational Fluid Dynamics Methods”, Nuclear & Renewable Energy Resources Conference With International Participation, Ankara-Turkey, 388-394, (2009).
6. Chen, W.C., K. Celebioglu, “Structural Analysis of Francis Type Turbine using Finite Element Method”, In: Nuclear & Renewable Energy Resources Conf. with Int. Particip., Ankara-Turkey, 378-383, (2009).
7. Jain S., Saini R. P., Kumar A., “CFD Approach for Prediction of Efficiency of Francis Turbine”, IGHEM, AHEC, IIT, Roorkee, India, (2010).
8. Pennacchi P., Chatterton S., Bachschmid N., Pesatori E., Turozzi G., “A Model to Study the Reduction of Turbine Blade Vibration Using The Snubbing Mechanism”, Mechanical Systems and Signal Processing, 25: 1260–1275, (2011).
9. Zhanga H., L. Zhang, “Numerical Simulation of Cavitating Turbulent Flow in a High Head Francis Turbine at Part Load Operation with Openfoam”, International Conference on Advances in Computational Modeling and Simulation, Procedia Engineering 31: 156–165, (2012).
10. Bing B. B., Zhang L., Guo T., Liu C. Analysis of Dynamic Characteristics of the Main Shaft System in a Hydro-turbine Based on ANSYS, Procedia Engineering, 31:654 – 658, (2012).
11. Nilsson H., Davidson L. A., “Numerical Comparison of Four Operating Conditions in a Kaplan Water Turbine”, Focusing on Tip Clearance Flow Published in the proceedings of the 20th IAHR Symposium,Charlotte, North Carolina, U.S.A. http://www.hcipub.com/iahr2000
12. Başeşme H., Hydroelectric Power Plants, General Directorate of EUAS, Ankara, 15-95, (2003).
13. Cengel Y., Cimbala J.M., Fluid Mechanics: Fundamentals and Applications, Ed. 3, McGraw-Hill, New York, USA,(2014).
14. ANSYS Inc., Fluent Theory Guide, Southpointe Technology Drive Canonsburg, USA,(2011).
15. Versteeg H.K., Malalasekera W., An Introduction to Computational Fluid Dynamics The Finite Volume Method, Pearson Prentice Hall Second edition, 1-16.,(2007).
16. Sözen A., Keçel, S., Yavuzcan H.G., “The Effect of the Angle of The Wicket Gate on Turbine Efficiency And Strength in Francis Type Turbines”, Journal of Gazi University Engineering and Architecture Faculty, 29(2):243-252, (2014).

There are 16 citations in total.

Details

Primary Language	English
Subjects	Engineering
Journal Section	Research Article
Authors	Selçuk Keçel This is me H. Güçlü Yavuzcan This is me Adnan Sözen
Publication Date	March 1, 2017
Submission Date	August 10, 2016
Published in Issue	Year 2017 Volume: 20 Issue: 1

Cite

APA	Keçel, S., Yavuzcan, H. G., & Sözen, A. (2017). Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades. Politeknik Dergisi, 20(1), 241-249.
AMA	Keçel S, Yavuzcan HG, Sözen A. Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades. Politeknik Dergisi. March 2017;20(1):241-249.
Chicago	Keçel, Selçuk, H. Güçlü Yavuzcan, and Adnan Sözen. “Examination of Flow Effects in Francis Turbine Models With Different Numbers of Rotor Blades”. Politeknik Dergisi 20, no. 1 (March 2017): 241-49.
EndNote	Keçel S, Yavuzcan HG, Sözen A (March 1, 2017) Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades. Politeknik Dergisi 20 1 241–249.
IEEE	S. Keçel, H. G. Yavuzcan, and A. Sözen, “Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades”, Politeknik Dergisi, vol. 20, no. 1, pp. 241–249, 2017.
ISNAD	Keçel, Selçuk et al. “Examination of Flow Effects in Francis Turbine Models With Different Numbers of Rotor Blades”. Politeknik Dergisi 20/1 (March 2017), 241-249.
JAMA	Keçel S, Yavuzcan HG, Sözen A. Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades. Politeknik Dergisi. 2017;20:241–249.
MLA	Keçel, Selçuk et al. “Examination of Flow Effects in Francis Turbine Models With Different Numbers of Rotor Blades”. Politeknik Dergisi, vol. 20, no. 1, 2017, pp. 241-9.
Vancouver	Keçel S, Yavuzcan HG, Sözen A. Examination of Flow Effects in Francis Turbine Models with Different Numbers of Rotor Blades. Politeknik Dergisi. 2017;20(1):241-9.