Experimental and Numerical Investigation of the Laminar Burning Velocity and Combustion Characteristics of Biogas at High Pressures

Continuous variation in the composition of gaseous fuels derived from biomass is a challenge in designing efficient combustors for using them. In this study, experimental measurement of the laminar burning velocity (ul) of three different compositions of biogas fuel containing equimolar H2/CO mixtures and N2 ranging from 40 to 60% by volume is conducted. Numerical calculations of the flame structure, adiabatic flame temperature (Tad), species concentrations, and sensitivity analysis are also performed. Investigations are conducted over a practical range of equivalence ratios (ranging from 0.4 to 1.2) and at high pressures up to 4 bar. The experimental method of schlieren in a high-pressure combustion chamber is used for flame speed measurement. Numerical calculations are performed using the premixed code of CHEMKIN using four well-known reaction mechanisms. Laminar burning velocities calculated using the USC Mech Version II mechanism showed the best agreement with the experiments. The results indicated th...

[1]  M. Ashjaee,et al.  Experimental Measurement of Laminar Burning Velocity and Flammability Limits of Landfill Gas at Atmospheric and Elevated Pressures , 2017 .

[2]  O. Askari,et al.  On the flame stability and laminar burning speeds of syngas/O2/He premixed flame , 2017 .

[3]  Jinhua Wang,et al.  Self-acceleration of cellular flames and laminar flame speed of syngas/air mixtures at elevated pressures , 2016 .

[4]  Min Jung Lee,et al.  Direct prediction of laminar burning velocity and quenching distance of hydrogen-air flames using an annular stepwise diverging tube (ASDT) , 2016 .

[5]  Guo-xiu Li,et al.  Experimental investigation on laminar burning velocities and flame intrinsic instabilities of lean and stoichiometric H2/CO/air mixtures at reduced, normal and elevated pressures , 2014 .

[6]  Guo-xiu Li,et al.  Measurement of the laminar burning velocities and markstein lengths of lean and stoichiometric syngas premixed flames under various hydrogen fractions , 2014 .

[7]  Heinz Pitsch,et al.  Experimental investigation of the laminar burning velocities of methanol, ethanol, n-propanol, and n-butanol at high pressure , 2014 .

[8]  Andrés Amell,et al.  Laminar burning velocity and interchangeability analysis of biogas/C3H8/H2 with normal and oxygen-enriched air , 2013 .

[9]  H. A. Yepes,et al.  Laminar burning velocity with oxygen-enriched air of syngas produced from biomass gasification , 2013 .

[10]  Zuohua Huang,et al.  Study on laminar flame speed and flame structure of syngas with varied compositions using OH-PLIF and spectrograph , 2013 .

[11]  Jinhua Wang,et al.  Laminar burning velocities and flame characteristics of CO–H2–CO2–O2 mixtures , 2012 .

[12]  Zuo-hua Huang,et al.  Experimental and numerical study on the effect of composition on laminar burning velocities of H2/CO/N2/CO2/air mixtures , 2012 .

[13]  Daniel B. Olsen,et al.  Experimental evaluation of knock characteristics of producer gas , 2012 .

[14]  D. Bae,et al.  Measurements of propagation speeds and flame instabilities in biomass derived gasair premixed flame , 2011 .

[15]  A. Amell,et al.  Laminar burning velocities and flame stability analysis of H2/CO/air mixtures with dilution of N2 and CO2 , 2011 .

[16]  Marc Bellenoue,et al.  Laminar burning velocities and Markstein numbers of syngas–air mixtures , 2010 .

[17]  C. Law,et al.  Nonlinear effects in the extraction of laminar flame speeds from expanding spherical flames , 2009 .

[18]  Patrice Seers,et al.  Numerical comparison of premixed laminar flame velocity of methane and wood syngas , 2009 .

[19]  Xue-Song Bai,et al.  Structures and burning velocity of biomass derived gas flames , 2009 .

[20]  M. R. Ravi,et al.  Investigation of nitrogen dilution effects on the laminar burning velocity and flame stability of syngas fuel at atmospheric condition , 2008 .

[21]  T. Lieuwen,et al.  Laminar flame speeds of H2/CO mixtures : Effect of CO2 dilution, preheat temperature, and pressure , 2007 .

[22]  A. Di Benedetto,et al.  Laminar burning velocity of hydrogen-methane/air premixed flames , 2007 .

[23]  F. Egolfopoulos,et al.  An optimized kinetic model of H2/CO combustion , 2005 .

[24]  Zhenwei Zhao,et al.  An updated comprehensive kinetic model of hydrogen combustion , 2004 .

[25]  Robert J. Kee,et al.  PREMIX :A F ORTRAN Program for Modeling Steady Laminar One-Dimensional Premixed Flames , 1998 .

[26]  Tamás Turányi,et al.  Applications of sensitivity analysis to combustion chemistry , 1997 .

[27]  R. J. Kee,et al.  Chemkin-II : A Fortran Chemical Kinetics Package for the Analysis of Gas Phase Chemical Kinetics , 1991 .

[28]  Robert J. Moffat,et al.  Describing the Uncertainties in Experimental Results , 1988 .

[29]  P. Clavin.  Dynamic behavior of premixed flame fronts in laminar and turbulent flows , 1985 .

[30]  Bernard J. Matkowsky,et al.  Flames as gasdynamic discontinuities , 1982, Journal of Fluid Mechanics.

[31]  G. Sivashinsky,et al.  On a distorted flame front as a hydrodynamic discontinuity , 1976 .

[32]  T. Scholte,et al.  The influence of small quantities of hydrogen and hydrogen compounds on the burning velocity of carbon monoxide-air flames , 1959 .