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RISReal Time Precursor Calculation for the Early Detection of Combustion Instabilities
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The proper control of the pressure fluctuations inside the gas turbine combustors is becoming a key factor to contain the pollutant emissions and extend their operability limits, as a consequence of the leaner and leaner ...
CO Emission Modeling in a Heavy Duty Annular Combustor Operating With Natural Gas
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: This paper summarizes the development of a large-eddy simulation (LES)-based approach for the prediction of CO emission in an industrial gas turbine combustor. Since the operating point of the modern combustors is really ...
Development of a Virtual Chemistry Reaction Mechanism for H2/CH4 Turbulent Combustion Modelling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The identification of the combustion model is always guided by the compromise between accuracy and computational cost. While species transport models offer accuracy, their computational cost requirement can become prohibitive, ...
Development of a Virtual Chemistry Reaction Mechanism for H2/CH4 Turbulent Combustion Modelling
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The identification of the combustion model is always guided by the compromise between accuracy and computational cost. While species transport models offer accuracy, their computational cost requirement can become prohibitive, ...
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 ...
Impact of Fuel Injection System on the Performance of an Industrial Burner With Hydrogen Piloting Operated With Simulated Exhaust Gas Recirculation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. Exhaust gas recirculation (EGR) can be exploited to increase the CO2 content at the exhaust of gas turbines (GTs), in order to improve the efficiency of carbon capture systems. The lower oxygen level leads to ...
Thickened Flame Model Extension for Dual Gas Turbine Combustion: Validation Against Single Cup Atmospheric Test
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The development of predictive combustion models is more and more strategic in the design definition of gas turbine (GT) combustor. The thickened flame model (TFM), despite its high computational cost, is one of the most ...
Numerical Modeling of Swirl Stabilized Lean-Premixed H2–CH4 Flames With the Artificially Thickened Flame Model
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: The lean premixed technology is a very convenient combustion strategy to progressively move from natural gas to high hydrogen content fuels in gas turbines limiting the pollutants emissions at the same time. The enabling ...
High-Fidelity Simulation for the Lean Blow-Out Analysis of an Industrial Burner Operated With Artificial Exhaust Gas Recirculation
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: Abstract. In this paper an enhanced thickened flame model (TFM) capable of accounting for both premixed and nonpremixed combustion regimes is leveraged to reproduce the extinction limit of an industrial burner operating ...
Prediction of the Flame Characteristics of an Industrial Gas Turbine Operated With CO2-Diluted Air Through a High-Fidelity Numerical Analysis: A Comparison Between Flamelet Generated Manifolds and Artificially Thickened Flame
Publisher: The American Society of Mechanical Engineers (ASME)
Abstract: In light of the global commitment to decarbonize industrial processes, carbon capture and storage (CCS) plays a pivotal role in mitigating greenhouse gas emissions from gas turbine (GT) power generation processes. Achieving ...