Influence of Turbine Blade Cooling Efficiency on Turbofan Engine Performance

Li Ya Zhu; Qin Huang

doi:10.4028/www.scientific.net/AMM.444-445.1272

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 444-445Influence of Turbine Blade Cooling Efficiency on...

Influence of Turbine Blade Cooling Efficiency on Turbofan Engine Performance

Abstract:

On the basis of a performance emulation model of turbofan engine, a relation curve was first employed to fix the efficiency of compression components. With the turbine blade cooling efficiency being a restriction, an optimization algorithm was developed on the premise that engine cycle parameters match. The calculation results show that when the turbine blade cooling efficiency was improved at a fixed bypass ratio, the engine overall pressure ratio corresponding to the lowest specific fuel consumption (sfc) grows on a large scale, while the lowest sfc slightly drops and the specific thrust significantly boosts.

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Periodical:

Applied Mechanics and Materials (Volumes 444-445)

Pages:

1272-1276

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.444-445.1272

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Online since:

October 2013

Authors:

Li Ya Zhu, Qin Huang

Keywords:

Performance Emulation, Specific Fuel Consumption, Specific Thrust, Turbine Blade Cooling Efficiency, Turbofan Engine

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