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RISNumerical 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 ...
Effect of Surface Roughness and Inlet Turbulence Intensity on a Turbine Nozzle Guide Vane External Heat Transfer: Experimental Investigation on a Literature Test Case
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Surface roughness is well known to significantly influence turbine aerodynamics and heat transfer; different studies have been undertaken in the last decades, in order to precisely characterize its effects and pursue a ...
Development and Application of an Internal Heat Transfer Measurement Technique for Cooled Real Engine Components1
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The aim of this work is to present the development and application of a measurement technique that allows to record internal heat transfer features of real components. In order to apply this method, based on similar ...
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 ...
Numerical Benchmark of Nonconventional RANS Turbulence Models for Film and Effusion Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Over the course of the years, several turbulence models specifically developed to improve the predicting capabilities of conventional twoequations Reynoldsaveraged Navier–Stokes (RANS) models have been proposed. They ...
Film Cooling Modeling for Gas Turbine Nozzles and Blades: Validation and Application
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The design of modern gas turbines cooling systems cannot be separated from the use of computational fluid dynamics (CFD) and the accurate estimation of the effect of film cooling. Nevertheless, a complete modeling of film ...
Experimental Investigation of the Flow Field and the Heat Transfer on a Scaled Cooled Combustor Liner With Realistic Swirling Flow Generated by a Lean Burn Injection System
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Leanburn swirl stabilized combustors represent the key technology to reduce NOx emissions in modern aircraft engines. The high amount of air admitted through a leanburn injection system is characterized by very complex ...
Experimental and Theoretical Investigation of Thermal Effectiveness in Multiperforated Plates for Combustor Liner Effusion Cooling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Stateoftheart liner cooling technology for modern combustors is represented by effusion cooling (or fullcoverage film cooling). Effusion is a very efficient cooling strategy based on the use of multiperforated liners, where ...
Heat Transfer Enhancement Due to Coolant Extraction on the Cold Side of Effusion Cooling Plates
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Effusion cooling represents one of the most innovative techniques to limit and control the metal temperature of combustors liner, and recently, attention has been paid by the scientific community on the characterization ...