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Optimization of CO Turndown for an Axially Staged Gas Turbine Combustor
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper reports on an optimization study of the CO turndown behavior of an axially staged combustor, in the context of industrial gas turbines (GTs). The aim of this work is to assess the optimally achievable CO turndown ...
Quantifying the Effect of Kinetic Uncertainties on NO Predictions at Engine-Relevant Pressures in Premixed Methane–Air Flames
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Accurate and robust thermochemical models are required to identify future low-NOx technologies that can meet the increasingly stringent emissions regulations in the gas turbine industry. These mechanisms are generally ...
Bayesian Calibration of Kinetic Parameters in the CH Chemistry Toward Accurate Prompt-NO Modelling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Significant efforts made by the gas turbine industry have helped reduce nitrogen oxides (NOx) emissions considerably. To meet and surpass the increasingly stringent regulations, accurate and robust thermochemical mechanisms ...
NOx Emissions Modeling and Uncertainty From Exhaust Gas Diluted Flames
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Oxides of nitrogen (NOx) are pollutants emitted by combustion processes during power generation and transportation that are subject to increasingly stringent regulations due to their impact on human health and the environment. ...
Uncertainty Quantification of NOx Emission Due to Operating Conditions and Chemical Kinetic Parameters in a Premixed Burner
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Many sources of uncertainty exist when emissions are modeled for a gas turbine combustion system. They originate from uncertain inputs, boundary conditions, calibration, or lack of sufficient fidelity in a model. In this ...
Measurements of the reactivity of premixed, stagnation, methane-air flames at gas turbine relevant pressures
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The adiabatic, unstrained, laminar flame speed, SL, is a fundamental combustion property, and a premier target for the development and validation of thermochemical mechanisms. It is one of the leading parameters determining ...
Impact of Boundary Condition and Kinetic Parameter Uncertainties on NOx Predictions in Methane–Air Stagnation Flame Experiments
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: A comprehensive understanding of uncertainty sources in experimental measurements is required to develop robust thermochemical models for use in industrial applications. Due to the complexity of the combustion process in ...
Ignition Delay Time Correlation of C1–C5 Natural Gas Blends for Intermediate and High Temperature Regime
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: New ignition delay time (IDT) data for stoichiometric natural gas (NG) blends composed of C1–C5 n-alkanes with methane as the major component were recorded using a high pressure shock tube (HPST) at reflected shock pressures ...
Effect of High Pressures on the Formation of Nitric Oxide in Lean, Premixed Flames
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Increasingly stringent regulations are imposed on nitrogen oxides emissions due to their numerous negative impacts on human health and the environment. Accurate, experimentally validated thermochemical models are required ...
Large Eddy Simulation of a Pressurized, Partially Premixed Swirling Flame With Finite-Rate Chemistry
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Finite-rate chemical effects at gas turbine conditions lead to incomplete combustion and well-known emissions issues. Although a thin flame front is preserved on an average, the instantaneous flame location can vary in ...