Large eddy simulation of a lean premixed swirl flame in complex geometry - comparison of two turbulent combustion models

Wang, P.; Fröhlich, Jochen; Maas, U.

doi:10.1007/978-3-642-03085-7_212

Cited by 1 publication

(3 citation statements)

References 9 publications

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“…where k i are coefficients, and the values are shown in Table 2. 1.8 × 10 4 e −4680/T k f, 3 7.1 × 10 7 e −450/T k r,1…”

Section: Nox Pollutant Modelmentioning

confidence: 99%

“…3.81 × 10 3 e −20,820/T k r, 3 1.7 × 10 8 e −24,560/T More NOx is produced in rich flames, and its formation process involves a series of complex reactions and intermediate components. The net rate of the generation of transient NOx is:…”

Section: Nox Pollutant Modelmentioning

confidence: 99%

“…To reduce flame temperature and avoid high temperature spots, lean premixed combustion technology was applied to modern gas turbines. Some units even sell out of combined flue to reduce NOx emissions [2,3]. However, the gas turbine engine is prone to Combustion Instability (CI), which leads to dangerous oscillation.…”

Section: Introductionmentioning

confidence: 99%

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Numerical Simulation of Combustion and Emission Characteristics during Gas Turbine Startup Procedure

Yang

Jiang

et al. 2022

Energies

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The annual operation data of an F-class gas turbine generator set revealed that the duration of the startup process accounts for about 8.5% of the whole operation process. The three combustion models of a DLN2.0+ combustor demonstrated higher NOx emissions than the premixed mode under normal load during the startup process. In order to evaluate the scale of NOx emissions at this stage, numerical simulation was carried out for the startup process to discern the NOx emission pattern. Typical simulation conditions for each season were established to calculate the total annual NOx emissions at the initial stage based on operating data. On this basis, the characteristics of NOx emissions influenced by changes in the atmospheric environment were studied in depth. The results of this study provide referential data for evaluating the pollution characteristics and combustion adjustment of a ground gas turbine during startup.

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“…where k i are coefficients, and the values are shown in Table 2. 1.8 × 10 4 e −4680/T k f, 3 7.1 × 10 7 e −450/T k r,1…”

Section: Nox Pollutant Modelmentioning

confidence: 99%

Section: Nox Pollutant Modelmentioning

confidence: 99%

See 1 more Smart Citation

Numerical Simulation of Combustion and Emission Characteristics during Gas Turbine Startup Procedure

Yang

Jiang

et al. 2022

Energies

View full text Add to dashboard Cite

show abstract

Large eddy simulation of a lean premixed swirl flame in complex geometry - comparison of two turbulent combustion models

Cited by 1 publication

References 9 publications

Numerical Simulation of Combustion and Emission Characteristics during Gas Turbine Startup Procedure

Numerical Simulation of Combustion and Emission Characteristics during Gas Turbine Startup Procedure

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