Chemical kinetic simulation of kerosene combustion in an individual flame tube

The use of detailed chemical reaction mechanisms of kerosene is still very limited in analyzing the combustion process in the combustion chamber of the aircraft engine. In this work, a new reduced chemical kinetic mechanism for fuel n-decane, which selected as a surrogate fuel for kerosene, containing 210 elemental reactions (including 92 reversible reactions and 26 irreversible reactions) and 50 species was developed, and the ignition and combustion characteristics of this fuel in both shock tube and flat-flame burner were kinetic simulated using this reduced reaction mechanism. Moreover, the computed results were validated by experimental data. The calculated values of ignition delay times at pressures of 12, 50 bar and equivalence ratio is 1.0, 2.0, respectively, and the main reactants and main products mole fractions using this reduced reaction mechanism agree well with experimental data. The combustion processes in the individual flame tube of a heavy duty gas turbine combustor were simulated by coupling this reduced reaction mechanism of surrogate fuel n-decane and one step reaction mechanism of surrogate fuel C12H23 into the computational fluid dynamics software. It was found that this reduced reaction mechanism is shown clear advantages in simulating the ignition and combustion processes in the individual flame tube over the one step reaction mechanism.

[1]  Ten-See Wang,et al.  Thermophysics Characterization of Kerosene Combustion , 2000 .

[2]  M. Thomson,et al.  A numerical and experimental study of a laminar sooting coflow Jet-A1 diffusion flame , 2011 .

[3]  R. Lindstedt,et al.  A DETAILED CHEMICAL KINETIC MODEL FOR AVIATION FUELS , 1997 .

[4]  Jean-Louis Delfau,et al.  Chemical Structure of Atmospheric Pressure Premixed n-Decane and Kerosene Flames , 1995 .

[5]  N. Peters,et al.  Kinetic modelling of n-decane combustion and autoignition , 2001 .

[6]  M. Cathonnet,et al.  Experimental study and kinetic modeling of higher hydrocarbon oxidation in a jet-stirred flow reactor , 1992 .

[7]  Herschel Rabitz,et al.  A general analysis of approximate lumping in chemical kinetics , 1990 .

[8]  D. Bradley,et al.  A generalization of laminar burning velocities and volumetric heat release rates , 1991 .

[9]  Mohamed Pourkashanian,et al.  Combustion of Kerosene in Counterflow Diffusion Flames , 2001 .

[10]  J. C. Boettner,et al.  Kerosene combustion at pressures up to 40 atm: Experimental study and detailed chemical kinetic modeling , 1994 .

[11]  Pierre-Alexandre Glaude,et al.  Modeling of the gas-phase oxidation of n-decane from 550 to 1600 K , 2000 .

[12]  Frederick L. Dryer,et al.  Modeling concepts for larger carbon number alkanes: A partially reduced skeletal mechanism for n-decane oxidation and pyrolysis , 2000 .

[13]  Norbert Peters,et al.  A surrogate fuel for kerosene , 2009 .

[14]  P. Dagaut,et al.  Experimental and kinetic modeling study of the oxidation of n-propylbenzene , 2002 .

[15]  Maria Nehse,et al.  Kinetic modeling of the oxidation of large aliphatic hydrocarbons , 1996 .

[16]  M. Reuillon,et al.  Formation of Aromatic Hydrocarbons in Decane and Kerosene Flames at Reduced Pressure , 1994 .

[17]  M. Cathonnet,et al.  REDUCTION OF LARGE DETAILED KINETIC MECHANISMS: APPLICATION TO KEROSENE/AIR COMBUSTION , 2004 .

[18]  D. Vlachos.  Reduction of detailed kinetic mechanisms for ignition and extinction of premixed hydrogen/air flames , 1996 .

[19]  A. Ristori,et al.  The combustion of kerosene : Experimental results and kinetic modelling using 1- to 3-component surrogate model fuels , 2006 .