Simple model for carbon monoxide oxidation in gas turbine combustors
To better understand the carbon monoxide oxidation process in gas-turbine combustors for purposes of emission control, Great Britain's Loughborough University of Technology developed an oxidation model for typical engine-idling and full-power conditions. The model examines the effect of the equivalence ratio, residence time, and degree of mixing on both the equilibrium CO concentration and the approach to this level within the various regions of the combustor. Though the model is more interpretive than predictive, the curves show trends in CO emission levels as the parameters change. For the idle condition, which creates the most CO, a reduction in CO would result from a well-mixed recirculation zone operating with an equivalence ratio of 0.7 and at a fairly high combustion efficiency. For compatible idle and full-power operation, some form of staged combustion or variable geometry might prove necessary.
- OSTI ID:
- 6924137
- Journal Information:
- Combust. Sci. Technol.; (United States), Journal Name: Combust. Sci. Technol.; (United States) Vol. 11; ISSN CBSTB
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
034000* -- Natural Gas-- Combustion
42 ENGINEERING
421000 -- Engineering-- Combustion Systems
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COMBUSTORS
EFFICIENCY
EMISSION
GAS TURBINES
KINETICS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION CONTROL
REACTION KINETICS
TURBINES
TURBOMACHINERY