| Abstract
| - The results of ongoing studies of methane reforming for power-generation applications arediscussed. Of interest are processes involving chemical recuperation for power generation utilizingthe endothermic methane reforming reaction and combining both reactive separation andcombustion. This study focuses on the dynamics and structure of flames of lean mixtures of airwith CH4/H2/CO/CO2/H2O, a five-gas fuel mix resulting when the product exiting a reformer iscombined with fresh CH4 prior to entering the combustor. Experiments are carried out in thesingle jet-wall, stagnation-flow configuration using laser Doppler velocimetry for determinationof the axial velocity profiles. The concentrations of stable species are measured by massspectrometry, nitrogen oxides are measured by chemiluminescence analysis, and the temperaturedistribution along the centerline is measured using fine-wire thermocouples. Numericalsimulations are conducted to solve for the steady-state mass, momentum, energy, and speciesconservation equations for the stagnation streamline in a finite domain with the addition ofradiation transfer. The experimental results compare favorably with the predictions.
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