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NOx and fuel emissions in combustion of hydrogen/air mixtures near inert surfaces
, Vlachos D.G.
Published in Elsevier BV
1998
Volume: 27
   
Issue: 1
Pages: 1435 - 1442
Abstract
Combustion of premixed H2/air flames near inert surfaces was studied numerically using detailed chemistry and multicomponent transport. The roles of inlet composition, radiative loss from the surface, and thermal quenching by cold walls in NOx and fuel emissions were analyzed. It is shown that the bifurcation behavior in terms of extinguishability strongly determines the role of thermal quenching in emissions. For weak, extinguishable flames, thermal quenching at the surface effectively reduces NOx emissions, although at the cost of higher fuel emissions. Strong, nonextinguishable flames at low strain rates are practically unaffected by thermal quenching except for an increased NO2 mole fraction near the surface.
About the journal
JournalData powered by TypesetSymposium (International) on Combustion
PublisherData powered by TypesetElsevier BV
Open AccessNo