0
Research Papers: Fuel Combustion

Numerical Study of the Effect of Nozzle Configurations on Characteristics of MILD Combustion for Gas Turbine Application

[+] Author and Article Information
Xiaowen Deng, Hong Yin, Qingshui Gao

Electric Power Research Institute of
Guangdong Power Grid Corporation,
Guangzhou, Guangdong 510080, China

Yan Xiong

Research Center for Clean Energy and Power,
Chinese Academy of Sciences,
Lianyungang, Jiangsu 222069, China

Contributed by the Advanced Energy Systems Division of ASME for publication in the JOURNAL OF ENERGY RESOURCES TECHNOLOGY. Manuscript received October 12, 2015; final manuscript received March 22, 2016; published online April 19, 2016. Assoc. Editor: Ashwani K. Gupta.

J. Energy Resour. Technol 138(4), 042212 (Apr 19, 2016) (8 pages) Paper No: JERT-15-1381; doi: 10.1115/1.4033141 History: Received October 12, 2015; Revised March 22, 2016

The MILD (moderate or intense low-oxygen dilution) combustion is characterized by low emission, stable combustion, and low noise for various kinds of fuel. This paper reports a numerical investigation of the effect of different nozzle configurations, such as nozzle number N, reactants jet velocity V, premixed and nonpremixed modes, on the characteristics of MILD combustion applied to one F class gas turbine combustor. An operating point is selected considering the pressure p = 1.63 MPa, heat intensity Pintensity = 20.5 MW/m3 atm, air preheated temperature Ta = 723 K, equivalence ratio φ = 0.625. Methane (CH4) is adopted as the fuel for combustion. Results show that low-temperature zone shrinks while the peak temperature rises as the nozzle number increases. Higher jet velocity will lead to larger recirculation ratio and the reaction time will be prolonged consequently. It is helpful to keep high combustion efficiency but can increase the NO emission obviously. It is also found that N = 12 and V = 110 m/s may be the best combination of configuration and operating point. The premixed combustion mode will achieve more uniform reaction zone, lower peak temperature, and pollutant emissions compared with the nonpremixed mode.

Copyright © 2016 by ASME
Your Session has timed out. Please sign back in to continue.

References

Roediger, T. , Lammel, O. , Aigner, M. , Beck, C. , and Krebs, W. , 2013, “ Part-Load Operation of a Piloted FLOX® Combustion System,” ASME J. Eng. Gas Turbines Power, 135(3), p. 031503. [CrossRef]
Blouch, J. , Li, H. , Mueller, M. , and Hook, R. , 2012, “ Fuel Flexibility in LM2500 and LM6000 Dry Low Emission Engines,” ASME J. Eng. Gas Turbines Power, 134(5), p. 051503. [CrossRef]
Arghode, V. K. , and Gupta, A. K. , 2011, “ Investigation of Forward Flow Distributed Combustion for Gas Turbine Application,” Appl. Energy, 88(1), pp. 29–40. [CrossRef]
Holdeman, J. D. , and Zhang, C. T. , 2001, “ Low Emissions RQL Flametube Combustor Component Test Results,” Report No. NASA/TM-2001-210678.
Carrera, A. M. , Jayasuriya, J. , and Fransson, T. , 2013, “ Staged Lean Catalytic Combustion of Gasified Biomass for Gas Turbine Applications: An Experimental Approach to Investigate Performance of Catalysts,” ASME Paper No. GT2013-95339.
Gupta, A. K. , 2000, “ Flame Characteristics and Challenges With High Temperature Air Combustion,” International Joint Power Generation Conference, Miami Beach, FL, July 23–26, pp. 23–26.
Arghode, V. K. , 2011, “ Development of Colorless Distributed Combustion for Gas Turbine Application,” Ph.D. thesis, Department of Mechanical Engineering, University of Maryland, College Park, MD.
Li, P. F. , Mi, J. C. , Dally, B. B. , Wang, F. , Wang, L. , Liu, Z. , Chen, S. , and Zheng, C. , 2011, “ Progress and Recent Trend in MILD Combustion,” Sci. China: Technol. Sci., 54(2), pp. 255–269. [CrossRef]
Duwig, C. , Li, B. , Li, Z. S. , and Alden, M. , 2012, “ High Resolution Imaging of Flameless and Distributed Turbulent Combustion,” Combust. Flame, 159(1), pp. 306–316. [CrossRef]
Wünning, J. A. , and Wünning, J. G. , 1997, “ Flameless Oxidation to Reduce Thermal NO-Formation,” Prog. Energy Combust. Sci., 23(1), pp. 81–94. [CrossRef]
Lammel, O. , Schtz, H. , Schamitz, G. , et al. ., 2010, “ FLOX® Combustion at High Power Density and High Flame Temperatures,” ASME J. Eng. Gas Turbines Power, 132(12), p. 121503. [CrossRef]
Galletti, C. , Parente, A. , and Tognotti, L. , 2007, “ Numerical and Experimental Investigation of a Mild Combustion Burner,” Combust. Flame, 151(4), pp. 649–664. [CrossRef]
Mi, J. , Li, P. , and Zheng, C. , 2010, “ Numerical Simulation of Flameless Premixed Combustion With an Annular Nozzle in a Recuperative Furnace,” Chin. J. Chem. Eng., 18(1), pp. 10–17. [CrossRef]
Tu, Y. , Liu, H. , Chen, S. , et al. ., 2015, “ Effects of Furnace Chamber Shape on the MILD Combustion of Natural Gas,” Appl. Therm. Eng., 76, pp. 64–75. [CrossRef]
Duwig, C. , Stankovic, D. , Fuchs, L. , Li, G. , and Gutmark, E. , 2008, “ Experimental and Numerical Study of Flameless Combustion in a Model Gas,” Combust. Sci. Technol., 180(2), pp. 270–295.
Seliger, H. , Huber, A. , and Aigner, M. , 2015, “ Experimental Investigation of a FLOX®-Based Combustor for a Small-Scale Gas Turbine Based CHP System Under Atmospheric Conditions,” ASME Paper No. GT2015-43094.
Zanger, J. , Monz, T. , and Aigner, M. , 2015, “ Experimental Investigation of the Combustion Characteristics of a Double-Staged FLOX®-Based Combustor on an Atmospheric and a Micro Gas Turbine Test Rig,” ASME Paper No. GT2015-42313.
Yang, W. , and Blasiak, W. , 2005, “ Numerical Study of Fuel Temperature Influence on Single Gas Jet Combustion in Highly Preheated and Oxygen Deficient Air,” Energy, 30(2), pp. 385–398. [CrossRef]
Fureby, C. , 2012, “ A Comparative Study of Flamelet and Finite Rate Chemistry LES for a Swirl Stabilized Flame,” ASME J. Eng. Gas Turbines Power, 134(4), p. 041503. [CrossRef]
Mardani, A. , Tabejamaat, S. , and Mohammadi, M. B. , 2011, “ Numerical Study of the Effect of Turbulence on Rate of Reactions in the MILD Combustion Regime,” Combust. Theory Model., 15(6), pp. 753–772. [CrossRef]
Christo, F. C. , and Dally, B. B. , 2005, “ Modeling Turbulent Reacting Jets Issuing Into a Hot and Diluted Co-Flow,” Combust. Flame, 142(1), pp. 117–129. [CrossRef]
Yang, W. , and Blasiak, W. , 2005, “ Mathematical Modeling of NO Emissions From High-Temperature Air Combustion With Nitrous Oxide Mechanism,” Fuel Process. Technol., 86(9), pp. 943–957. [CrossRef]
Galletti, C. , Parente, A. , and Tognotti, L. , 2007, “ Numerical and Experimental Investigation of a Mild Combustion Burner,” Combust. Flame, 151(4), pp. 649–664. [CrossRef]
Parente, A. , Galletti, C. , and Tognotti, L. , 2008, “ Effect of the Combustion Model and Kinetic Mechanism on the MILD Combustion in an Industrial Burner Fed With Hydrogen Enriched Fuels,” Int. J. Hydrogen Energy, 33(24), pp. 7553–7564. [CrossRef]
Mi, J. , Li, P. , and Zheng, C. , 2011, “ Impact of Injection Conditions on Flame Characteristics From a Parallel Multi-Jet Burner,” Energy, 36(11), pp. 6583–6595. [CrossRef]
Danon, B. , Cho, E. S. , De Jong, W. , et al. ., 2011, “ Numerical Investigation of Burner Positioning Effects in a Multi-Burner Flameless Combustion Furnace,” Appl. Therm. Eng., 31(17), pp. 3885–3896. [CrossRef]
Vascellari, M. , and Cau, G. , 2012, “ Influence of Turbulence–Chemical Interaction on CFD Pulverized Coal MILD Combustion Modeling,” Fuel, 101, pp. 90–101. [CrossRef]
Rottier, C. , Lacour, C. , Godard, G. , Taupin, B. , Porcheron, L. , and Hauguel, R. , 2009, “ On the Effect of Air Temperature on Mild Flameless Combustion Ragime of High Temperature Furnace,” Fourth European Combustion Meeting, Vienna, Austria, Apr. 14–19.
Khalil, A. E. E. , Arghode, V. K. , Gupta, A. K. , and Sang, C. L. , 2012, “ Low Calorific Value Fuelled Distributed Combustion With Swirl for Gas Turbine Applications,” Appl. Energy, 98, pp. 69–78. [CrossRef]
Derudi, M. , Villani, A. , and Rota, R. , 2007, “ Sustainability of Mild Combustion of Hydrogen-Containing Hybrid Fuels,” Proc. Combust. Inst., 31(2), pp. 3393–3400. [CrossRef]
Arghode, V. K. , and Gupta, A. K. , 2011, “ Investigation of Reverse Flow Distributed Combustion for Gas Turbine Application,” Appl. Energy, 88(4), pp. 1096–1104. [CrossRef]
Han, D. , and Mungal, M. G. , 2001, “ Direct Measurement of Entrainment in Reacting/Non-Reacting Turbulent Jets,” Combust. Flame, 124(3), pp. 370–386. [CrossRef]
Ricou, F. P. , and Spalding, D. B. , 1961, “ Measurements of Entrainment by Axis-Symmetrical Turbulent Jets,” J. Fluid Mech., 11(01), pp. 21–32. [CrossRef]
Arghode, V. K. , and Gupta, A. K. , 2010, “ Effect of Flow Field for Colorless Distributed Combustion (CDC) for Gas Turbine Combustion,” Appl. Energy, 87(5), pp. 1631–1640. [CrossRef]
Cavaliere, A. , and de Joannon, M. , 2004, “ Mild Combustion,” Prog. Energy Combust. Sci., 30(4), pp. 329–366. [CrossRef]
Dandy, D. S. , and Vosen, S. R. , 1992, “ Numerical and Experimental Studies of Hydroxyl Radical Chemiluminescence in Methane-Air Flames,” Combust. Sci. Technol., 82(1–6), pp. 131–150. [CrossRef]
Lückerath, R. , Meier, W. , and Aigner, M. , 2008, “ FLOX® Combustion at High Pressure With Different Fuel Compositions,” ASME J. Eng. Gas Turbines Power, 130(1), p. 011505. [CrossRef]
Li, P. , Wang, F. , Mi, J. , Dally, B. B. , and Mei, Z. , 2014, “ MILD Combustion Under Different Premixing Patterns and Characteristics of the Reaction Regime,” Energy Fuels, 28(3), pp. 2211–2226. [CrossRef]

Figures

Grahic Jump Location
Fig. 1

Schematic diagram of the gas turbine combustor

Grahic Jump Location
Fig. 2

Three-dimensional computational domain and meshes of the combustor

Grahic Jump Location
Fig. 4

Comparison of FOUR numerical simulation and experimental measurements: (a) temperature distribution of central plane and (b) Z direction velocity

Grahic Jump Location
Fig. 5

Grid independence check for the case 6

Grahic Jump Location
Fig. 6

Flowfield of combustor: (a) path lines of the combustor and (b) vectors near the nozzle

Grahic Jump Location
Fig. 7

Pressure contours of X-Z plane

Grahic Jump Location
Fig. 8

Flowfield and temperature contours of different nozzle number cases

Grahic Jump Location
Fig. 9

Recirculation ratio at different height of combustor

Grahic Jump Location
Fig. 10

Pollutant emissions and pressure loss of the combustor

Grahic Jump Location
Fig. 11

Velocity decay along the centerline of jet nozzle

Grahic Jump Location
Fig. 12

Recirculation ratio of different jet velocity

Grahic Jump Location
Fig. 13

Pollutant emissions and pressure loss of the combustor

Grahic Jump Location
Fig. 14

Contours of mass fraction of CH4 (YCH4) of case 8: (a) contours of YCH4, (b) contours of YCH4 near nozzle

Grahic Jump Location
Fig. 15

Comparison of nonpremixed and premixed modes

Tables

Errata

Discussions

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related Journal Articles
Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In