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| Content Provider | The American Society of Mechanical Engineers (ASME) Digital Collection |
|---|---|
| Author | Price, G. R. Botros, K. K. Goldin, G. M. |
| Copyright Year | 2000 |
| Abstract | CFD simulations of the combustion process and formation of emissions in an industrial GE LM1600 gas turbine have been performed over a range of unit loads. Two combustion models were considered here to characterize the combustion process, the chemical equilibrium model and the non-equilibrium laminar flamelet model. The flamelet model predictions of nitric oxide concentration demonstrated much closer agreement with field measurements of continuous emissions monitoring systems, due to accurate modeling of the oxygen radial concentration. The predictions made with this model are within 15% at maximum load and considerably better at lower loads. Field measurements also showed that nitric oxide constitutes about 95% of the total NOx measured. Unburnt hydrocarbons and carbon monoxide emissions are significantly over-predicted, however, arguably as a result of neglecting their oxidation in the high temperature, fuel-lean environment of the turbine and exhaust stack downstream of the combustor. |
| Sponsorship | International Gas Turbine Institute |
| File Format | |
| ISBN | 9780791878552 |
| DOI | 10.1115/2000-GT-0350 |
| Volume Number | Volume 2: Coal, Biomass and Alternative Fuels; Combustion and Fuels; Oil and Gas Applications; Cycle Innovations |
| Conference Proceedings | ASME Turbo Expo 2000: Power for Land, Sea, and Air |
| Language | English |
| Publisher Date | 2000-05-08 |
| Publisher Place | Munich, Germany |
| Access Restriction | Subscribed |
| Subject Keyword | Oxygen Computational fluid dynamics Equilibrium (physics) Combustion High temperature Fuels Carbon Modeling Stress Emissions Exhaust systems Gas turbines Simulation Monitoring systems Nitrogen oxides Oxidation Engineering simulation Combustion chambers Turbines |
| Content Type | Text |
| Resource Type | Article |
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