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TECHNICAL PAPERS

A New Method to Calculate the Coolant Requirements of a High-Temperature Gas Turbine Blade

[+] Author and Article Information
Leonardo Torbidoni

TPG-DiMSET, Università di Genova, Genova, Italy

J. H. Horlock

Whittle Laboratory, University of Cambridge, Cambridge, UK

J. Turbomach 127(1), 191-199 (Feb 09, 2005) (9 pages) doi:10.1115/1.1811100 History: Received October 01, 2003; Revised March 01, 2004; Online February 09, 2005
Copyright © 2005 by ASME
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References

Lakshminarayana, B., 1996, Fluid Dynamics and Heat Transfer in Turbomachinery, Wiley, New York.
Consonni, S., 1992, “Performance Prediction of Gas/Steam Cycles for Power Generation,” MAE Dept. Princeton Univ., Ph.D. thesis No. 1983-T.
Halls, G. A., 1969, “Air Cooling of Turbine Blades and Vanes,” AGARD-ograph No. 120.
Holland,  M. J., and Thake,  T. F., 1980, “Rotor Blade Cooling in High Pressure Turbines,” Am. Ind. Hyg. Assoc. J., 17, 412–418.
Wilcock,  R. C., Young,  J. B., and Horlock,  J. H., 2005, “The Effect of Turbine Blade Cooling on the Cycle Efficiency of Gas Turbine Power Plants,” ASME J. Eng. Gas Turbines Power 127, pp. 109–120.
Ainley, D. G., 1957, “Internal Air Cooling for Turbine Blades: A General Design Survey,” Aeronautical Research Council Reports and Memo. 3013.
Jordal, K., Torbidoni, L., and Massardo, A. F., 2001, “Convective Blade Cooling Modelling for the Analysis of Innovative Gas Turbine Cycles,” ASME Turboexpo 2001, ASME, New York, ASME Paper No. 2001-GT-0390.
Torbidoni,  L., and Massardo,  A. F., 2002, “Analytical Blade Cooling Model for Innovative Gas Turbine Cycle Evaluations Supported by Semi-Empirical Air Cooled Blade Data,” ASME J. Eng. Gas Turbines Power, 126, pp. 498–506.
Chiesa, P., and Macchi, E., 2002, “A Thermodynamic Analysis of Different Options to Break 60% Electric Efficiency in Combined Cycle Power Plants,” ASME, Paper No. GT-2002-30663.
Goldstein, R. J., and Haji-Sheikh, A., 1967, “Prediction of Film Cooling Effectiveness,” Proc. 1967, Semi-Int. Symp. (Tokyo), pp. 213–218, JSME, Tokyo.
Torbidoni, L., 2004, PhD thesis, University of Genoa, Italy.
Kacker,  S. C., and Okapuu,  U., 1982, “A Mean Line Prediction Method for Axial Flow Turbine Efficiency,” ASME J. Eng. Power, 104, pp. 111–119.
Hartsel, J. E., 1972, “Prediction of Effects of Mass-Transfer Cooling on the Blade-Row Efficiency of Turbine Airfoils,” AIAA, 10th Aerospace Sciences Meeting, San Diego, Paper No. AIAA-72-11.
Louis, J. F., 1977, “Systematic Studies of Heat Transfer and Film Cooling Effectiveness,” AGARD CP 229.

Figures

Grahic Jump Location
Cooling effectiveness as a function of the parameter w+ and the cooling efficiency (convective cooling only)
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Cooling effectiveness as a function of the parameter w+, the cooling efficiency and the film cooling effectiveness (convective and film cooling)
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Element ΔSgdy for heat transfer through blade surface to coolant
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Enthalpy-entropy diagrams for uncooled and cooled blading (showing both stagnation and static enthalpy)
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Fractional and absolute cooling flow quantities required for ten steps along the blade chord
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Cooling efficiency for ten steps along the blade chord
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Adiabatic wall film effectiveness for ten steps along the blade chord

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