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RISComputational Study of a Midpassage Gap and Upstream Slot on Vane Endwall Film-Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbines are designed to operate with high inlet temperatures to improve engine performance. To reduce NOx resulting from combustion, designs for combustors attempt to achieve flat pattern factors ...
Flow Field Computations of Combustor-Turbine Interactions Relevant to a Gas Turbine Engine
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The current demands for high-performance gas turbine engines can be reached by raising combustion temperatures to increase power output. High combustion temperatures create a harsh environment ...
Simulations of Multiphase Particle Deposition on Endwall Film-Cooling Holes in Transverse Trenches
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Integrated gasification combined cycle (IGCC) power plants allow for increased efficiency and reduced emissions as compared to pulverized coal plants. A concern with IGCCs is that impurities in ...
Flowfield Measurements in a Single Row of Low Aspect Ratio Pin Fins
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Pin-fin arrays are commonly used as compact heat exchangers for cooling the trailing edge of gas turbine airfoils. While much research has been devoted to the heat transfer characteristics of ...
Simulations of Multiphase Particle Deposition on Endwall Film-Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Demand for clean energy has increased motivation to design gas turbines capable of burning alternative fuels such as coal derived synthesis gas (syngas). One challenge associated with burning ...
A Film-Cooling Correlation for Shaped Holes on a Flat-Plate Surface
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A common method of optimizing coolant performance in gas turbine engines is through the use of shaped film-cooling holes. Despite widespread use of shaped holes, existing correlations for ...
The Effect of the Combustor-Turbine Slot and Midpassage Gap on Vane Endwall Heat Transfer
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Turbine vanes are generally manufactured as single- or double-airfoil sections that are assembled into a full turbine disk. The gaps between the individual sections, as well as a gap between ...
Considerations of a Double-Wall Cooling Design to Reduce Sand Blockage
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Gas turbine engines use innovative cooling techniques to keep metal temperatures down while pushing the main gas temperature as high as possible. Cooling technologies such as film-cooling and ...
Computational Predictions of Heat Transfer and Film-Cooling for a Turbine Blade With Nonaxisymmetric Endwall Contouring
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Three-dimensional contouring of the compressor and turbine endwalls in a gas turbine engine has been shown to be an effective method of reducing aerodynamic losses by mitigating the strength ...
Simulations of Multiphase Particle Deposition on a Showerhead With Staggered Film-Cooling Holes
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The demand for cleaner, more efficient energy has driven the motivation for improving the performance standards for gas turbines. Increasing the combustion temperature is one way to get the ...