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RISGas Turbines Design and Off-Design Performance Analysis With Emissions Evaluation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Many gas turbines simulation codes have been developed to estimate power plant performance both in design and off-design conditions in order to establish the adequate control criteria or the ...
Numerical Investigation on the Effect of Rotation and Holes Arrangement in Cold Bridge-Type Impingement Cooling Systems
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This work presents the results of a numerical analysis performed on a gas turbine leading edge cooling system. The investigation was carried out in order to provide a detailed interpretation of the outcomes of a parallel ...
A Novel Large-Eddy Simulation-Based Process for NOx Emission Assessment in a Premixed Swirl Stabilized Combustion System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper presents a new computational fluid dynamics (CFD) approach for the assessment of NOx emission. The methodology is validated against the experimental data of a heavy-duty gas turbine annular combustor. Since the ...
A Dynamic Thickening Strategy for High-Fidelity Computational Fluid Dynamics Analyses of Multi-Regime Combustion
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In this study, a dynamic thickening strategy for dynamic thickened flame model for large eddy simulations (DTFLES) application to multi-regime combustion is proposed. The main idea lies in using the numerical solution of ...
Numerical Characterization of Pressure Drop Across the Manifold of Turbine Casing Cooling System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: An array of jets is an arrangement typically used to cool several gas turbine parts. Some examples of such applications can be found in the impingement cooling systems of turbine blades and vanes or in the turbine blade ...
Numerical Characterization of Aerodynamic Losses of Jet Arrays for Gas Turbine Applications
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Jet array is an arrangement typically used to cool several gas turbine parts. Some examples of such applications can be found in the impingement cooled region of gas turbine airfoils or in ...
Turbine Stator Well CFD Studies: Effects of Coolant Supply Geometry on Cavity Sealing Performance
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The increase of aeroengine performance through the improvement of aerodynamic efficiency of core flow is becoming more and more difficult to achieve. However, there are still some devices that ...
Numerical Investigations of Pollutant Emissions From Novel Heavy-Duty Gas Turbine Burners Operated With Natural Gas
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A numerical investigation of pollutant emissions of a novel dry low-emissions burner for heavy-duty gas turbine applications is presented. The objective of this work is to develop and assess a robust and cost-efficient ...
Reduced-Order Models for Effusion Modeling in Gas Turbine Combustors
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effusion cooling represents the state-of-the-art for liner cooling technology in modern combustion chambers, combining a more uniform film protection of the wall and a significant heat sink effect by forced convection ...
Analysis of Swirl Number Effects on Effusion Flow Behavior Using Time-Resolved Particle Image Velocimetry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The analysis of the interaction between the swirling and cooling flows, promoted by the liner film cooling system, is a fundamental task for the design of turbine combustion chambers since it influences different aspects ...