The objective of this investigation was to study the effect of axially staged injection of methane in the vitiated air cross flow in a two stage combustion chamber on the formation of NOX for different momentum flux ratios. The primary cylindrical combustor equipped with a low swirl air blast nozzle operating with Jet-A liquid fuel generates vitiated air in the temperature range of 1473–1673 K at pressures of 5–8 bars. A methane injector was flush mounted to the inner surface of the secondary combustor at an angle of 30 deg. Oil cooled movable and static gas probes were used to collect the gas samples. The mole fractions of NO, NO2, CO, CO2, and O2 in the collected exhaust gas samples were measured using gas analyzers. For all the investigated operating conditions, the change in the mole fraction of NOX due to the injection of methane (ΔNOX) corrected to 15% O2 and measured in dry mode was less than 15 ppm. The mole fraction of ΔNOX increased with an increase in mass flow rate of methane and it was not affected by a change in the momentum flux ratio. The penetration depth of the methane jet was estimated from the profiles of mole fraction of O2 obtained from the samples collected using the movable gas probe. For the investigated momentum flux ratios, the penetration depth observed was 15 mm at 5 bars and 5 mm at 6.5 and 8 bars. The results obtained from the simulations of the secondary combustor using a RANS turbulence model were also presented. Reaction modeling of the jet flame present in a vitiated air cross flow posed a significant challenge as it was embedded in a high turbulent flow and burns in partial premixed mode. The applicability of two different reaction models has been investigated. The first approach employed a combination of the eddy dissipation and the finite rate chemistry models to determine the reaction rate, while the presumed JPDF model was used in the further investigations. Predictions were in closer agreement to the measurements while employing the presumed JPDF model. This model was also able to predict some key features of the flow such as the change of penetration depth with the pressure.
Skip Nav Destination
Article navigation
March 2012
Research Papers
Analysis of NOX Formation in an Axially Staged Combustion System at Elevated Pressure Conditions
Chockalingam Prathap,
Chockalingam Prathap
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Search for other works by this author on:
Flavio C. C. Galeazzo,
Flavio C. C. Galeazzo
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Search for other works by this author on:
Plamen Kasabov,
Plamen Kasabov
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Search for other works by this author on:
Peter Habisreuther,
Peter Habisreuther
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Search for other works by this author on:
Nikolaos Zarzalis,
Nikolaos Zarzalis
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Search for other works by this author on:
Christian Beck,
Christian Beck
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
Search for other works by this author on:
Werner Krebs,
Werner Krebs
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
Search for other works by this author on:
Bernhard Wegner
Bernhard Wegner
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
Search for other works by this author on:
Chockalingam Prathap
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Flavio C. C. Galeazzo
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Plamen Kasabov
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Peter Habisreuther
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Nikolaos Zarzalis
Division of Combustion Technology,
Engler-Bunte-Institute, Karlsruhe Institute of Technology
, Engler-Bunte-Ring 1, 76131 Karlsruhe, Germany
Christian Beck
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
Werner Krebs
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
Bernhard Wegner
SIEMENS AG, Mellinghoferstr. 55, 45473 Mülheim an der Ruhr,
Germany
J. Eng. Gas Turbines Power. Mar 2012, 134(3): 031507 (8 pages)
Published Online: January 4, 2012
Article history
Received:
April 29, 2011
Revised:
July 13, 2011
Online:
January 4, 2012
Published:
January 4, 2012
Citation
Prathap, C., Galeazzo, F. C. C., Kasabov, P., Habisreuther, P., Zarzalis, N., Beck, C., Krebs, W., and Wegner, B. (January 4, 2012). "Analysis of NOX Formation in an Axially Staged Combustion System at Elevated Pressure Conditions." ASME. J. Eng. Gas Turbines Power. March 2012; 134(3): 031507. https://doi.org/10.1115/1.4004720
Download citation file:
Get Email Alerts
Image-based flashback detection in a hydrogen-fired gas turbine using a convolutional autoencoder
J. Eng. Gas Turbines Power
Fuel Thermal Management and Injector Part Design for LPBF Manufacturing
J. Eng. Gas Turbines Power
An investigation of a multi-injector, premix/micromix burner burning pure methane to pure hydrogen
J. Eng. Gas Turbines Power
Related Articles
Damkohler Number Analysis in Lean Blow-Out of Toroidal Jet Stirred Reactor
J. Eng. Gas Turbines Power (October,2018)
Low-Emission, Liquid Fuel Combustion System for Conventional and Alternative Fuels Developed by the Scaling Analysis
J. Eng. Gas Turbines Power (April,2016)
Numerical Study of Radiation and Fuel–Air Unmixedness on the Performance of a Dry Low NOx Combustor
ASME Open J. Engineering (January,2022)
Parametric Simulation of Turbulent Reacting Flow and Emissions in a Lean Premixed Reverse Flow Type Gas Turbine Combustor
J. Eng. Gas Turbines Power (February,2012)
Related Proceedings Papers
Related Chapters
A Simple Carburetor
Case Studies in Fluid Mechanics with Sensitivities to Governing Variables
Outlook
Closed-Cycle Gas Turbines: Operating Experience and Future Potential
Influence of Aethylether on Combustion and Emission Characteristics of Dieselbiodiesel Mixture Fuel
Proceedings of the 2010 International Conference on Mechanical, Industrial, and Manufacturing Technologies (MIMT 2010)