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Research Papers: Gas Turbines: Turbomachinery

Sensitivity Analysis of Auto-Ignition Simulation at Gas Turbine Operating Conditions

[+] Author and Article Information
Juliane Prause

Institute of Combustion Technology,
German Aerospace Center (DLR),
Pfaffenwaldring 38-40,
Stuttgart 70569, Germany
e-mail: juliane.prause@dlr.de

Berthold Noll, Manfred Aigner

Institute of Combustion Technology,
German Aerospace Center (DLR),
Pfaffenwaldring 38-40,
Stuttgart 70569, Germany

Khawar Syed

Alstom (Switzerland) Ltd.,
Zentralstrasse 40,
Birr 5242, Switzerland

Contributed by the Turbomachinery Committee of ASME for publication in the JOURNAL OF ENGINEERING FOR GAS TURBINES AND POWER. Manuscript received December 4, 2014; final manuscript received January 21, 2015; published online March 31, 2015. Editor: David Wisler.

J. Eng. Gas Turbines Power 137(10), 102601 (Oct 01, 2015) (7 pages) Paper No: GTP-14-1646; doi: 10.1115/1.4029930 History: Received December 04, 2014; Revised January 21, 2015; Online March 31, 2015

The demand to reduce CO2 emissions favors the use of alternative hydrogen-rich fuels, which can stem from precombustion carbon capture or power-to-gas technologies. These fuels are characterized by a higher reactivity and reduced ignition delay time compared to natural gas. Therefore, current combustor designs need to be adapted to the new requirements. Numerical modeling greatly assists the further development of such systems. The present study aims to determine how far a sophisticated computational fluid dynamics (CFD) combustion method is able to predict auto-ignition at real engine conditions. Scale-resolving computations of auto-ignition were performed at elevated pressure (15 bar) and intermediate temperatures (>1000 K). The conditions are similar to those occurring in premixing ducts of reheat combustors. A nitrogen-diluted hydrogen jet is injected perpendicularly into a stream of hot vitiated air. The scale-adaptive simulation (SAS) method as proposed by Menter and coworkers has been applied. The chemistry is captured by direct inclusion of detailed kinetics. Subgrid fluctuations of temperature and species are considered by an assumed probability density function (PDF) approach. The results are compared with appropriate experimental reference data. The focus of the present work is set on the identification of the major sources of uncertainty in the simulation of auto-ignition. Despite the very challenging operating conditions, satisfactory agreements could be obtained within experimental uncertainties.

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References

Joos, F., Brunner, P., Schulte-Werning, B., Syed, K., and Ergolu, A., 1996, “Development of the Sequential Combustion System for the ABB GT24/GT26 Gas Turbine Family,” ASME Paper No. 96-GT-315. [CrossRef]
Poyyapakkam, M., Wood, J., Mayers, S., Ciani, A., Guethe, F., and Syed, K., 2012, “Hydrogen Combustion Within a Gas Turbine Reheat Combustor,” ASME Paper No. GT2012-69165. [CrossRef]
Jones, W., and Navarro-Martinez, S., 2007, “Large Eddy Simulation of Autoignition With a Subgrid Probability Density Function Method,” Combust. Flame, 150(3), pp. 170–187. [CrossRef]
Ihme, M., and See, Y. C., 2011, “LES Flamelet Modeling of a Three-Stream Mild Combustor: Analysis of Flame Sensitivity to Scalar Inflow Conditions,” Proc. Combust. Inst., 33(1), pp. 1309–1317. [CrossRef]
Stanković, I., Mastorakos, E., and Merci, B., 2013, “LES-CMC Simulations of Different Auto-Ignition Regimes of Hydrogen in a Hot Turbulent Air Co-Flow,” Flow, Turbul. Combust., 90(3), pp. 583–604. [CrossRef]
Herzler, J., and Naumann, C., 2009, “Shock-Tube Study of the Ignition of Methane/Ethane/Hydrogen Mixtures With Hydrogen Contents From 0% to 100% at Different Pressures,” Proc. Combust. Inst., 32(1), pp. 213–220. [CrossRef]
Burke, M. P., Chaos, M., Ju, Y., Dryer, F. L., and Klippenstein, S. J., 2012, “Comprehensive H2/O2 Kinetic Model for High-Pressure Combustion,” Int. J. Chem. Kinet., 44(7), pp. 444–474. [CrossRef]
Fotache, C., Kreutz, T., Zhu, D. L., and Law, C. K., 1995, “An Experimental Study of Ignition in Nonpremixed Counterflowing Hydrogen Versus Heated Air,” Combust. Sci. Technol., 109(1–6), pp. 373–393. [CrossRef]
Kreutz, T., and Law, C. K., 1996, “Ignition in Nonpremixed Counterflowing Hydrogen Versus Heated Air: Computational Study With Detailed Chemistry,” Combust. Flame, 104(1), pp. 157–175. [CrossRef]
Fleck, J., Griebel, P., Steinberg, A. M., Stöhr, M., Aigner, M., and Ciani, M., 2012, “Autoignition Limits of Hydrogen at Relevant Reheat Combustor Operating Conditions,” ASME J. Eng. Gas Turbines Power, 134(4), p. 041502. [CrossRef]
Najm, H. B., 2011, “Uncertainty Quantification in Fluid Flow,” Turbulent Combustion Modeling (Fluid Mechanics and Its Applications, Vol. 95), T.Echekki, and E.Mastorakos, eds., Springer, Dordrecht, Chap. 16.
Fleck, J., Griebel, P., Steinberg, A., Stöhr, M., Aigner, M., and Ciani, M., 2010, “Experimental Investigation of a Generic, Fuel Flexible Reheat Combustor at Gas Turbine Relevant Operating Conditions,” ASME Paper No. GT2010-22722. [CrossRef]
Kolla, H., Grout, R. W., Gruber, A., and Chen, J. H., 2012, “Mechanisms of Flame Stabilization and Blowout in a Reacting Turbulent Hydrogen Jet in Cross-Flow,” Combust. Flame, 159(8), pp. 2755–2766. [CrossRef]
Menter, F. R., and Egorov, Y., 2005, “A Scale-Adaptive Simulation Model Using Two-Equation Models,” AIAA Paper No. 2005-1095. [CrossRef]
Ivanova, E., Noll, B., Aigner, M., and Syed, K., 2012, “Numerical Simulations of Turbulent Mixing and Autoignition of Hydrogen Fuel at Reheat Combustor Operating Conditions,” ASME J. Eng. Gas Turbines Power, 134(4), p. 041504. [CrossRef]
Ó Conaire, M., Curran, H. J., Simmie, J. M., Pitz, W. J., and Westbrook, C. K., 2004, “A Comprehensive Modelling Study of Hydrogen Oxidation,” Int. J. Chem. Kinet., 36(11), pp. 603–622. [CrossRef]
Gerlinger, P., Möbus, H., and Brüggemann, D., 2001, “An Implicit Multigrid Method for Turbulent Combustion,” J. Comput. Phys., 167(2), pp. 247–276. [CrossRef]
Gerlinger, P., 2002, “Investigation of an Assumed PDF Approach for Finite-Rate Chemistry,” AIAA Paper No. 2002-0166. [CrossRef]
Di Domenico, M., 2007, “Numerical Simulations of Soot Formation in Turbulent Flows,” Ph.D. thesis, Universität Stuttgart, Stuttgart, Germany.
Li, J., Zhao, Z., Kazakov, A., and Dryer, F. L., 2004, “An Updated Comprehensive Kinetic Model of Hydrogen Combustion,” Int. J. Chem. Kinet., 36(10), pp. 566–575. [CrossRef]
Konnov, A. A., 2008, “Remaining Uncertainties in the Kinetic Mechanism of Hydrogen Combustion,” Combust. Flame, 152(4), pp. 507–528. [CrossRef]
Kéromnès, A., Metcalfe, W. K., Heufer, K. A., Donohoe, N., Das, A. K., Sung, C.-J., Herzler, J., Naumann, C., Griebel, P., Mathieu, O., Krejci, M. C., Petersen, E. L., Pitz, W. J., and Curran, H. J., 2013, “An Experimental and Detailed Chemical Kinetic Modeling Study of Hydrogen and Syngas Mixture Oxidation at Elevated Pressures,” Combust. Flame, 160(6), pp. 995–1011. [CrossRef]
Weydahl, T., Poyyapakkam, M., Seljeskog, M., and Haugen, N. E. L., 2011, “Assessment of Existing H2/O2 Chemical Reaction Mechanisms at Reheat Gas Turbine Conditions,” Int. J. Hydrogen Energy, 36(18), pp. 12025–12034. [CrossRef]
Mueller, M. A., Yetter, R. A., and Dryer, F. L., 1999, “Flow Reactor Studies and Kinetic Modeling of the H2/O2/NOx and CO/H2O/O2/NOx Reactions,” Int. J. Chem. Kinet., 31(10), pp. 705–724. [CrossRef]

Figures

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Fig. 1

Alstom GT24/GT26 gas turbine [2]

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Fig. 2

Experimental setup [10]

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Fig. 3

Luminescence signal of auto-ignition events [10], left: nonstabilizing ignition kernel, right: stabilizing ignition kernel

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Fig. 4

Position of ignition kernels [10]

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Fig. 5

Instantaneous temperature distribution for baseline hot gas temperature Thg/Tref = 1.00

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Fig. 6

Instantaneous temperature distribution for baseline hot gas temperature Thg/Tref = 1.10

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Fig. 7

Instantaneous temperature distribution for baseline hot gas temperature Thg/Tref = 1.14

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Fig. 8

Averaged temperature distribution for Thg/Tref = 1.10 with flame front on the coarse grid

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Fig. 9

Averaged temperature distribution for Thg/Tref = 1.10 on the medium grid

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Fig. 10

Averaged temperature distribution for Thg/Tref = 1.10 on the fine grid

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Fig. 11

Eddy viscosity ratio

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Fig. 12

Kinetic mechanisms

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Fig. 13

Measured temperature signal [10]

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Fig. 14

Instantaneous temperature distribution for extended domain

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Fig. 15

Computed temperature signal at position of temperature probe

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Fig. 16

Computation of ignition kernel evolution in the mixing duct with inclusion of hot gas temperature fluctuations

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