Application of CFD-Based Analysis Technique for Design and Optimization of Gas Turbine Combustors

Koutsenko, Iouri G.; Onegin, S. F.; Sipatov, A. M.

doi:10.1115/gt2004-53398

Cited by 4 publications

(1 citation statement)

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“…al. [7] have optimized a gas tur-bine combustor to achieve a low level of nitric oxide emissions through CFD analyses. The commercial CFD code 'CFX-TASC Flow' was used for calculating the flow structure and for analyzing the nitric oxide formation process inside the combustor.…”

Section: Introductionmentioning

confidence: 99%

On Low-Emission Annular Combustor Based on Designing of Liner Air Admission Holes

Dolmatov

Hajivand

2018

NTU "KhPI" Bulletin

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Numerical experiments was carried out to predict the total temperature characteristics and formation of nitrogen oxide emissions and pattern factor in an annular combustor liner based on geometrical parameters and location and rows of different air admission holes, for 6 various cases, using computational fluid dynamics (CFD) .The simulation has been performed using ANSYS CFX including finite rate chemistry and eddy dissipation model, for simulation of liquid kerosene (Jet A)-air combustion after fuel droplet evaporation. The spray modeling was performed, including Rosin-Rammler droplet distribution. Thermal and prompt nitrogen oxide (NO x) formation was performed to predicting NO x emission characteristics with a k-ε model of turbulent. In this investigation the 3D CAD model of the realistic annular combustion chamber is presented for the simulation with double radial air swirler for the better mixing fuel with air. Beside this the characteristic and the flame structure is presented including the contour plots of total temperature and NO concentration at the outlet of the combustor liner and in cross section plane along the X axis from the injector center of the combustor including the chart of the velocity and NO, CO, CO 2 , O 2 and the total temperature along the liner from the injector center. For the combustion of kerosene with air 2 step kinetic schemes are presented in this study. The results show that the best result with the low concentration of NO is the case 5 but with a high percentage of pressure drop and the case 3 have the maximum concentration of NO with the low percentage of pressure drop.

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Section: Introductionmentioning

confidence: 99%

On Low-Emission Annular Combustor Based on Designing of Liner Air Admission Holes

Dolmatov

Hajivand

2018

NTU "KhPI" Bulletin

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Numerical and Experimental Analysis of the Temperature Distribution in a Hydrogen Fuelled Combustor for a 10 MW Gas Turbine

Masi

Gobbato

Toffolo

et al. 2010

Journal of Engineering for Gas Turbines and Power

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Proper cooling of the hot components and an optimal temperature distribution at the turbine inlet are fundamental targets for gas turbine combustors. In particular, the temperature distribution at the combustor discharge is a critical issue for the durability of the turbine blades and the high performance of the engine. At present, CFD is a widely used tool to simulate the reacting flow inside gas turbine combustors. This paper presents a numerical analysis of a single can type combustor designed to be fed both with hydrogen and natural gas. The combustor also features a steam injection system to restrain the NOx pollutants. The simulations were carried out to quantify the effect of fuel type and steam injection on the temperature field. The CFD model employs a computationally low cost approach, thus the physical domain is meshed with a coarse grid. A full-scale test campaign was performed on the combustor: temperatures at the liner wall and the combustor outlet were acquired at different operating conditions. These experimental data, which are discussed, were used to evaluate the capability of the present CFD model to predict temperature values for combustor operation with different fuels and steam to fuel ratios

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Multi-objective Numerical Investigation of a Generic Airblast Injector Design

Comer

Kipouros

Cant

2016

Journal of Engineering for Gas Turbines and Power

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In combustor design for aero-engines, engineers face multiple opposing objectives with strict constraints. The trend toward lean direct injection (LDI) combustors suggests a growing emphasis on injector design to balance these objectives. Decades of empirical and analytical work have produced low-order methods, including semi-empirical and semi-analytical correlations and models of combustors and their components, but detailed modeling of injector and combustor behavior requires computational fluid dynamics (CFD). In this study, an application of low-order methods and published guidelines yielded generic injector and combustor geometries, as well as CFD boundary conditions of parameterized injector designs. Moreover, semi-empirical correlations combined with a numerical spray combustion solver provided injector design evaluations in terms of pattern factor, thermoacoustic performance, and certain emissions. Automation and parallel coordinate visualization enabled exploration of the dual-swirler airblast injector design space, which is often neglected in published combustor design studies.

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Application of CFD-Based Analysis Technique for Design and Optimization of Gas Turbine Combustors

Cited by 4 publications

References 0 publications

On Low-Emission Annular Combustor Based on Designing of Liner Air Admission Holes

On Low-Emission Annular Combustor Based on Designing of Liner Air Admission Holes

Numerical and Experimental Analysis of the Temperature Distribution in a Hydrogen Fuelled Combustor for a 10 MW Gas Turbine

Multi-objective Numerical Investigation of a Generic Airblast Injector Design

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