Analysis of Re Influence on MILD Combustion of Gas Turbine

Lijun Wang, Dongdong Qi, Xiaowei Sui, Xin Xie

Shenyang Aerospace University, Division of Aerospace Engineering, Shenyang.
Shenyang Aerospace University, Shenyang, College of Energy and Environment.

DOI: 10.4236/epe.2013.54B018                

Abstract

The paper numerical studied the MILD(Moderate or Intense Low-oxygen Dilution) combustion mode and performances in the designed gas turbine chamber. The influence of air jet Re number on flue gas recycles ratio Kv and hereby on kerosene fuel MILD combustion were modeled. For fixed equivalence ratio, increasing the air jet Re number to the Kv value of 3.3 - 3.8, MILD combustion mode will be formed. It has MILD combustion performances of volume combustion, excellent outlet temperature field and very low pollutant emissions. Combustor confinement has little effects on MILD combustion. Calculating results agree with other’s similar experimental data.

Keywords

Gas Turbine; MILD Combustion; Combustion Performance; Numerical Study

Conflicts of Interest

The authors declare no conflicts of interest.

References

[1]	Z. Nikolao, “Low-NOx Combustor Development Pursued within the Scope of the Engine 3E German National Research Program in a Cooperative Effort among Engine Manufacturer, University of Karlsruhe and DLR German Aerospace Research Center,” Aerospace Science and Technology, Vol. 6, No. 7, 2002, pp. 531-544. doi.org/10.1016/S1270-9638(02)01179-3
[2]	P F Li, J C Mi, B. B. Dally, et al., “Progress and Recent Trend in MILD Combustion,” China Science and Technology, Vol. 54, 2011, pp. 255-269. doi:10.1007/s11431-010-4257-0
[3]	J. A Wunning and J. G. Wunning, “Flameless Oxidation to Reduce Thermal NO Formation,” Progress in Energy Combustion Science, Vol. 23, No. 1, 1997, pp. 81-94.
[4]	A. K. Gupta Proceedings of 2nd International Seminar on High Temperature Combustion in Industrial FurnaceJemkontoret-KTH, Stockholm, Sweden, January, 2000, pp. 17-18
[5]	F. Michael, “New Combustion Systems for Gas Turbines(NGT),” Applied Thermal Engineering, Vol. 24, No. 11-12, 2004, pp. 1551-1559. doi:10.1016/j.applthermaleng.2003.10.024
[6]	K. Vaibhav Arghode and K. Ashwani Gupta, “Investigation of Forward Flow Distributed Combustion for Gas Turbine Application,” Applied Energy, Vol. 88, 2011, pp. 29-40. doi:10.1016/j.apenergy.2010.04.030
[7]	K. Vaibhav Arghode and K. Ashwani Gupta, “Development of High Intensity CDC Combustor for Gas Turbine Engines,” Applied Energy, Vol. 88, 2011, pp. 963-973. doi:10.1016/j.apenergy.2010.07.038
[8]	Antonio Cavaliere and Mara de Joannon, “Mild Combustion,” Progress in Energy and Combustion Science, Vol. 30, 2004, pp. 329-366. doi:10.1016/j.pecs.2004.02.003
[9]	G. Erwann, C. Michanel and G. Ephraim, “Application of “Flameless” Combustion for Gas Turbine Engines,” 47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition, Orlando, Florida, USA: AIAA 2009, Vol. 225, 5-8 January 2009, pp. 1-10.
[10]	Y. Levy, G. Arvind Rao and S. Valery, “Chemical Kinetic and Thermodynamics of Flameless Combustion Methodology for Gas Turbine Combustors,”43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference& Exhibit, 8-11 July 2007, Cincinnati, OH, AIAA 2007, Vol. 5629, pp. 1-18.
[11]	J. C. Mi, P. F. Li and C. G. Zheng, “Impact of Injection Conditions on Flame Characteristics from a Parallel Multi-jet Burner Energy,” Vol. 36, No. 11, 2011, pp. 6583-6595. doi:10.1016/j.energy.2011.09.003
[12]	Fluent, “The FLU-ENT 6.3 User’s Guide,” Fluent Inc., 2005, http://www.fluent.com
[13]	R. Curtet, “Combust Flame,” Vol. 2, 1958, pp. 383-411.
[14]	G. Erwann, C. Michael and G. Ephraim, “Application of ‘Flameless’ Combustion for Gas Turbine Engines,” 47th AIAA Aerospace Science Meeting Including The New Horizones Forum and Aerospace Exposition, Orlando, Florida, USA, 2009, pp. 1-10.