MILD combustion has characteristics of high efficiency and ultra-low emissions.Under thetypical gas turbine operating conditions, theinfluence of varying load on MILD combustion was simulated in thispaperby changing the fuel injection quantity to control the equivalence ratio.The results show thatthe stable quality and distributionof the airflowwith hot gas circulation rate Kvgreater than 3.3, and greater Equivalence ratio with higher fuel injection momentumsare both essential to achieve MILD combustion.factor.The calculation result, whichis consistent with that of MILD combustion testingunder the similar conditions, has reference value to new type of gas turbines design.
SUI Xiao-wei, QI Dong-dong, YANG Yang, WANG Li-jun
. Research on MILD combustion characteristics of gas turbine under varying-load conditions[J]. Journal of Shenyang Aerospace University, 2013
, 30(6)
: 21
-24
.
DOI: 10.3969/j.issn.2095-1248.2013.06.005
[1]Li Pengfei, Mi Jianchun, Dally B B, et al.Progress and recent trend in MILD combustion[J].Sci.China, Tech.Sci, 2011, 54(2):255-269.
[2]Vaibhav K, Ashwani K.Development of high intensity CDC combustor for gas turbine engines[J].Applied Energy, 2011, 88(3):963-973.
[3]Melo M J, Sousa J M M, Costa Y, et al.Flow and combustion characteristics of a low-NOx combustor model for gas turbines[J].Journal of Propulsion and Power, 2011, 27(6):1212-1217.
[4]Guoqiang Li, Ephraim J.Gutmark.Experimental study of flameless combustion in gas turbine combustors[C].44th AIAA Aerospace Sciences Meeting and Exhibit, AIAA, 2006(546):9-12.Reno:Nevada:1-15.
[5]ErwannGuillou, Michael Cornwell, Ephraim Gutmark.Application of "Flameless" combustion for gas turbine engines[C].47th AIAA Aerospace Sciences Meeting Including The New Horizons Forum and Aerospace Exposition.AIAA, 2009(225):5-8.
[6]Sadanandan R, Lückerath R, Meier W, et al.Flame characteristics and emissions in flameless combustion under gas turbine relevant conditions[J].Journal of propulsion and power, 2011, 27(5):970-980.
[7]Bobba M K, Gopalakrishnan P, Seitzman J M, et al, Characteristics of combustion process in a stagnation point reverse flow combustor[C].ASME Turbo Expo 2006:Power for Land, See and Air, 2006.Barcelona, Spain:1-9.
[8]Levy Y, Arvind Rao G, Valery Sherbaum.Chemical kinetic and thermodynamics of flameless combustion methodology for gas turbine combustor[C].43rd AIAA/ASME/SAE/ASEE Joint Propulsion Conference & Exhibit.AIAA, 2007(5629):1-18.
[9]Yufeng Cui, Xuan Lu, Gang Xu, et al.Dynamic analysis of a flameless combustion model combustor[J].Science China Technology Sciences, 2010, 53(8):2291-2298.
