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Method for Accurately Evaluating Flow Capacity of Individual Film-Cooling Rows of Engine Components
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A laboratory experimental method and an analysis technique are presented for evaluation of individual film-cooling row flow capacity characteristics. The method is particularly suited to complex systems such as hot section ...
Cooling Optimization Theory—Part II: Optimum Internal Heat Transfer Coefficient Distribution
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbine cooling system design is constrained by a maximum allowable wall temperature (dictated by the material, the life requirements of the component, and a given stress distribution), the desire to minimize coolant ...
Cooling Optimization Theory—Part I: Optimum Wall Temperature, Coolant Exit Temperature, and the Effect of Wall/Film Properties on Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbine cooling system design is constrained by a maximum allowable wall temperature (dictated by the material and the life requirements of the component), minimum coolant mass flow rate (the requirement to minimize ...
Reverse Pass Cooling Systems for Improved Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Total heat transfer between a hot and a cold stream of gas across a nonporous conductive wall is greatest when the two streams flow in opposite directions. This countercurrent arrangement outperforms the cocurrent arrangement ...
An Energy Based Method for Predicting the Additive Effect of Multiple Film Cooling Rows
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: There have been numerous studies reporting film effectiveness for film rows in isolation, which have led to correlations that are used for preliminary design. Many applications require multiple film cooling rows. Although ...
Laboratory Infrared Thermal Assessment of Laser-Sintered High-Pressure Nozzle Guide Vanes to Derisk Engine Design Programs
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The continuing maturation of metal laser-sintering technology (direct metal laser sintering (DMLS)) presents the opportunity to derisk the engine design process by experimentally down-selecting high-pressure nozzle guide ...