Combustion and pollutant formation in a gas turbine combustion chamber is investigated numerically using the Eulerian particle flamelet model. The code solving the unsteady flamelet equations is coupled to an unstructured computational fluid dynamics (CFD) code providing solutions for the flow and mixture field from which the flamelet parameters can be extracted. Flamelets are initialized in the fuel-rich region close to the fuel injectors of the combustor. They are represented by marker particles that are convected through the flow field. Each flamelet takes a different pathway through the combustor, leading to different histories for the flamelet parameters. Equations for the probability of finding a flamelet at a certain position and time are additionally solved in the CFD code. To model the chemical properties of kerosene, a detailed reaction mechanism for a mixture of n-decane and 1,2,4-trimethylbenzene is used. It includes a detailed submechanism and the buildup of polycyclic aromatic hydrocarbons up to four aromatic rings. The kinetically based soot model describes the formation of soot particles by inception, further growth by coagulation, and condensation as well as surface growth and oxidation. Simulation results are compared to experimental data obtained on a high-pressure rig. The influence of the model on pollutant formation is shown, and the effect of the number of flamelets on the model is investigated.
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e-mail: e.riesmeier@itm.rwth-aachen.de
e-mail: s.honnet@itm.rwth-aachen.de
e-mail: n.peters@itm.rwth-aachen.de
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October 2004
Technical Papers
Flamelet Modeling of Pollutant Formation in a Gas Turbine Combustion Chamber Using Detailed Chemistry for a Kerosene Model Fuel
E. Riesmeier,
e-mail: e.riesmeier@itm.rwth-aachen.de
E. Riesmeier
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
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S. Honnet,
e-mail: s.honnet@itm.rwth-aachen.de
S. Honnet
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
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N. Peters
e-mail: n.peters@itm.rwth-aachen.de
N. Peters
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
Search for other works by this author on:
E. Riesmeier
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
e-mail: e.riesmeier@itm.rwth-aachen.de
S. Honnet
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
e-mail: s.honnet@itm.rwth-aachen.de
N. Peters
Institut fu¨r Technische Mechanik, RWTH Aachen, Templergraben 64, D-52056 Aachen, Germany
e-mail: n.peters@itm.rwth-aachen.de
Contributed by the Internal Combustion Engine Division of THE AMERICAN SOCIETY OF MECHANICAL ENGINEERS for publication in the ASME JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received by the ICE Division Jan. 20, 2003; final revision received by the ASME Headquarters March 12, 2004. Associate Editor: D. Assanis.
J. Eng. Gas Turbines Power. Oct 2004, 126(4): 899-905 (7 pages)
Published Online: November 24, 2004
Article history
Received:
January 20, 2003
Revised:
March 12, 2004
Online:
November 24, 2004
Citation
Riesmeier, E., Honnet, S., and Peters, N. (November 24, 2004). "Flamelet Modeling of Pollutant Formation in a Gas Turbine Combustion Chamber Using Detailed Chemistry for a Kerosene Model Fuel ." ASME. J. Eng. Gas Turbines Power. October 2004; 126(4): 899–905. https://doi.org/10.1115/1.1787507
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