Simulation of a syngas counter-flow diffusion flame structure and NO emissions in the pressure range 1–10atm

A numerical investigation of structure and emissions of oxygen-enriched syngas flame in counter-flow configuration

“…This general trend has been identified in previous studies [37,38]. In addition, radiation is found to be important only at strain rates lower than the intermediate value [37] and its effect decreases with hydrogen enrichment [39].…”

“…The opposite behavior is noticed for strain rate values higher than the intermediate value due to the decrease of adiabatic flame temperature with hydrogen enrichment [26,38,39]. Fig.…”

MILD combustion of ethanol-air with diluted hot oxidant by recirculation in opposite jet

“…The opposite jet diffusion flame configuration can be simplified to pseudo one dimensional equation and can describe effectively the interaction between two opposing reactant flow and chemical reaction in entire reacting flow very well has been adopted in many studies to analyze the fundamental combustion characteristics (Safer et al, 2014(Safer et al, , 2015. For validation of numerical study, numerical results for normal opposed diffusion flame was compared to normal ethanol non-premixed flame experimental ones in the opposite jet of Saxena and Williams (Saxena and Williams, 2007).…”

Advances in understanding combustion phenomena using non-premixed and partially premixed counterflow flames: A review

“…Along with methane and ethane studies in counterflow diffusion flames, several groups also conducted studies of NO x kinetics in synthesis gas flames. [168][169][170][171][172] Understanding kinetics in syngas combustion can be challenging because the composition of this fuel depends heavily on its source of production. Shih et al 169 conducted numerical simulations for 20:80 and 80:20 H 2 :CO/air syngas diffusion flames and identified thermal NO to be the major NO formation pathways for the latter mixture owing to higher flame temperatures.…”

“…Along with methane and ethane studies in counterflow diffusion flames, several groups also conducted studies of NO x kinetics in synthesis gas flames. 168–172 Understanding kinetics in syngas combustion can be challenging because the composition of this fuel depends heavily on its source of production. Shih et al.…”