Ignition of lean methane-based fuel blends at gas turbine pressures Conference Paper uri icon

abstract

  • Shock-tube experiments and chemical kinetics modeling were performed to further understand the ignition and oxidation kinetics of lean methane-based fuel blends at gas turbine pressures. Ignition delay times were obtained behind reflected shock waves for fuel mixtures consisting of CH4, CH4/H2, CH4/C2H6, and CH4/C3H8 in ratios ranging from 90/10 to 60/40%. Lean fuel/air equivalence ratios ( = 0.5) were utilized, and the test pressures ranged from 0.54 to 25.3 atm. A methane-oxidation kinetics mechanism based on GRI-Mech 3.0 was assembled to reproduce the methane/air mixtures. Additional reactions involving CH3O and CH3O2 chemistry and modifications to a few of the pressure-dependent reaction rate coefficients were needed to achieve good agreement between data and model.

name of conference

  • Volume 2: Turbo Expo 2005

published proceedings

  • PROCEEDINGS OF THE ASME TURBO EXPO 2005, VOL 2

author list (cited authors)

  • Petersen, E. L., Hall, J. M., Smith, S. D., de Vries, J., Amadio, A., & Crofton, M. W.

citation count

  • 8

complete list of authors

  • Petersen, Eric L||Hall, Joel M||Smith, Schuyler D||de Vries, Jaap||Amadio, Anthony||Crofton, Mark W

publication date

  • January 2005