Computational Conjugate Heat Transfer Analysis of HP Stage Turbine Blade Cooling: Effect of Turbulator Geometry in Helicoidal Cooling Duct
In a bid to improve turbine entry temperature for maximizing the thermal efficiency of the HP stage gas turbine blade, an attempt is made in this paper to compare the performance of helicoidal ducted blade cooling with turbulator of different geometric proportion. It is found from analysis that there is significant improvement in cooling characteristics for turbine blade with turbulator geometry having larger e/D ratio. Also it is found from analysis, performance is vastly improved for greater thickness of turbulator geometry.
[1] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2012),
"Numerical Analysis of Gas Turbine HP Stage Blade Cooling with New
Cooling Duct Geometries", International Journal of Earth Sciences and
Engineering, Volume 05 No 04 (02), pp. 1057-1062.
[2] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2012),
"Numerical Analysis of Gas Turbine HP Stage Blade Cooling with New
Cooling Duct Geometries", 2nd International Engineering Symposium - IES 2012, Kumamoto University, Japan, March 5-7.
[3] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2011),
"A Computational Conjugate Thermal Analysis of HP Stage Turbine Blade Cooling with Innovative Cooling Passage Geometries", The 2011
International Conference of Mechanical Engineering, World Congress of
Engineers, London, July 6-8.
[4] Chyu, M.K., and Naturajan. V (1995); "Surface heat transfer from a
three-pass blade cooling passage simulator", J. Heat Transfer, Vol. 117,
pp. 650-656.
[5] Dutta, S., Andrews, M.J., and Han, J.C., (1996); "Prediction of Turbulent Flow and Heat Transfer in Rotating Square and Rectangular
Smooth Channels." International Gas Turbine & Aeroengine Congress
& Exhibition, Birmingham, UK, June 10- 13, ASME Paper 96-GT-234
[6] Han, J., Ekkad, S. (2001); "Recent Development in Turbine Blade Film
Cooling", Int. J. of Rotating Machinery, Vol. 7, pp. 21-40.
[7] Horlock, J.H. (2001); "Basic thermodynamics of turbine cools", J.
Turbomachinery, Vol. 123, pp. 583-592.
[8] Li, X., Wang, T. (2008); “Computational Analysis of Surface Curvature
Effect on Mist Film-Cooling Performance”, J. Heat Transfer, Vol. 130,
pp. 121901-10.
[9] Li, X.., Wang, T. (2008); “Two-Phase Flow Simulation of Mist Film
Cooling on Turbine Blades With Conjugate Internal Cooling”, J. Heat
Transfer, Vol. 130, pp. 102901-8
[10] http://new.bibus.cz/pdf/Special_Metals/Nikl/prehled/nimonicalloy_
90_105.pdf
[11] http://www.engineeringtoolbox.com/air-properties
[12] Fluent 6.3, Fluent Inc., Cavendish Court Lebanon, NH, 03766, USA.
[13] CATIA, Dassault Systems, 1994-2011.
[1] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2012),
"Numerical Analysis of Gas Turbine HP Stage Blade Cooling with New
Cooling Duct Geometries", International Journal of Earth Sciences and
Engineering, Volume 05 No 04 (02), pp. 1057-1062.
[2] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2012),
"Numerical Analysis of Gas Turbine HP Stage Blade Cooling with New
Cooling Duct Geometries", 2nd International Engineering Symposium - IES 2012, Kumamoto University, Japan, March 5-7.
[3] Chandrakant R Kini, Satish Shenoy B, and N Yagnesh Sharma (2011),
"A Computational Conjugate Thermal Analysis of HP Stage Turbine Blade Cooling with Innovative Cooling Passage Geometries", The 2011
International Conference of Mechanical Engineering, World Congress of
Engineers, London, July 6-8.
[4] Chyu, M.K., and Naturajan. V (1995); "Surface heat transfer from a
three-pass blade cooling passage simulator", J. Heat Transfer, Vol. 117,
pp. 650-656.
[5] Dutta, S., Andrews, M.J., and Han, J.C., (1996); "Prediction of Turbulent Flow and Heat Transfer in Rotating Square and Rectangular
Smooth Channels." International Gas Turbine & Aeroengine Congress
& Exhibition, Birmingham, UK, June 10- 13, ASME Paper 96-GT-234
[6] Han, J., Ekkad, S. (2001); "Recent Development in Turbine Blade Film
Cooling", Int. J. of Rotating Machinery, Vol. 7, pp. 21-40.
[7] Horlock, J.H. (2001); "Basic thermodynamics of turbine cools", J.
Turbomachinery, Vol. 123, pp. 583-592.
[8] Li, X., Wang, T. (2008); “Computational Analysis of Surface Curvature
Effect on Mist Film-Cooling Performance”, J. Heat Transfer, Vol. 130,
pp. 121901-10.
[9] Li, X.., Wang, T. (2008); “Two-Phase Flow Simulation of Mist Film
Cooling on Turbine Blades With Conjugate Internal Cooling”, J. Heat
Transfer, Vol. 130, pp. 102901-8
[10] http://new.bibus.cz/pdf/Special_Metals/Nikl/prehled/nimonicalloy_
90_105.pdf
[11] http://www.engineeringtoolbox.com/air-properties
[12] Fluent 6.3, Fluent Inc., Cavendish Court Lebanon, NH, 03766, USA.
[13] CATIA, Dassault Systems, 1994-2011.
@article{"International Journal of Mechanical, Industrial and Aerospace Sciences:59452", author = "Chandrakant R Kini and Satish Shenoy B and Yagnesh Sharma N.", title = "Computational Conjugate Heat Transfer Analysis of HP Stage Turbine Blade Cooling: Effect of Turbulator Geometry in Helicoidal Cooling Duct", abstract = "In a bid to improve turbine entry temperature for maximizing the thermal efficiency of the HP stage gas turbine blade, an attempt is made in this paper to compare the performance of helicoidal ducted blade cooling with turbulator of different geometric proportion. It is found from analysis that there is significant improvement in cooling characteristics for turbine blade with turbulator geometry having larger e/D ratio. Also it is found from analysis, performance is vastly improved for greater thickness of turbulator geometry.
", keywords = "Conjugate heat transfer, turbine blade cooling, helicoidal cooling duct, turbulator.", volume = "6", number = "10", pages = "2221-8", }
