Paper 15: The Design of Tubular Gas Turbine Combustion Chambers for Optimum Mixing Performance

Lefebvre, A. H.; Norster, E. R.

doi:10.1243/pime_conf_1968_183_245_02

Cited by 9 publications

(7 citation statements)

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“…However, if the momentum flux ratio is increased by reducing U g , the two approaches give different results. Lefebvre and Norster (1969) developed another method for obtaining the optimum number and size of dilution holes needed to attain the most uniform distribution of exhaust gas temperature. The method is purely empirical and relevant data has to be obtained from charts.…”

Section: Other Approaches To Optimization Of the Combustor Exit Tempementioning

confidence: 99%

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Multi-disciplinary design optimization of a combustor

Motsamai

Visser

Morris

2008

Engineering Optimization

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A technique for design optimization of a combustor is presented. This technique entails the use of computational fluid dynamics (CFD) and mathematical optimization to minimize the combustor exit temperature profile. The empirical and semi-empirical correlations commonly used for optimizing combustor exit temperature profile do not guarantee optimum. As an experimental approach is time consuming and costly, use is made of numerical techniques. However, using CFD without mathematical optimization on a trial and error basis does not guarantee optimal solutions. A better approach, which is often viewed as too expensive, is a combination of the two approaches, thus incorporating the influence of the variables automatically. In this study the combustor exit temperature profile is optimized. The optimum (uniform) combustor exit temperature profile mainly depends on the geometric parameters. Combustor parameters have been used as optimization variables. The combustor investigated is an experimental liquid-fuelled atmospheric combustor with a turbulent diffusion flame. The CFD simulations use the Fluent code with a standard k-ε model. The optimization is carried out using the Dynamic-Q algorithm, which is specifically designed to handle constrained problems where the objective and constraint functions are expensive to evaluate. The optimization leads to a more uniform combustor exit temperature profile compared with the original.

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Section: Other Approaches To Optimization Of the Combustor Exit Tempementioning

confidence: 99%

“…The method is purely empirical and relevant data has to be obtained from charts. The dilution hole diameter is obtained from the equation (Lefebvre and Norster 1969) …”

Section: Other Approaches To Optimization Of the Combustor Exit Tempementioning

confidence: 99%

Multi-disciplinary design optimization of a combustor

Motsamai

Visser

Morris

2008

Engineering Optimization

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“…They spray radially inward from the sides of the combustor about mid-way along its length. The jet penetration equation of Lefebvre and Norster [8] was adapted to check that the arrangement of secondary fuel injectors and air admission openings surrounding them met the criteria for optimum jet mixing.…”

Section: Description Of Apparatusmentioning

confidence: 99%

Update of Full Scale Catalytic Burner Testing for Combustion Turbines

Pillsbury

1984

Volume 3: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations

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As described previously in ASME papers, an effort has been underway to apply the emission reduction advantages of catalytic oxidation to practical burners for the large combustion turbines used in electrical power generation. A two-stage design is used to cover the operating range. Results are presented for high pressure combustion rig tests in the primary, secondary, and combined modes, as well as during transition. The fuel for this series, was No. 2 distillate oil. The work was supported by the Electric Power Research Institute, the Westinghouse Electric Corp., and the Engelhard Corp. The results define more clearly the highest priority areas for further development with this technology.

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“…Another method used by Lefebvre and Norster [5], for the attainment of the most uniform distribution of exhaust gas temperature is to use the number and size of the dilution holes. The methods [4,5] are purely empirical and relevant data has to be obtained from charts. Although these methods do not guarantee the optimum results, they have proved very successful in preliminary design.…”

Section: Introductionmentioning

confidence: 99%