Experimental and modeling study of lean premixed atmospheric-pressure propane/O{sub 2}/N{sub 2} flames

Journal Article · Mon Aug 01 04:00:00 EDT 2005 · Combustion and Flame

DOI:https://doi.org/10.1016/j.combustflame.2005.03.006· OSTI ID:20677684

Biet, Joffrey; Delfau, Jean-Louis; Vovelle, Christian ^[1]; Seydi, Abdoulaye ^[2]

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1. LCSR-CNRS 1C, Avenue de la Recherche Scientifique, 45071 Orleans (France)
2. Departement de Chimie, Faculte des Sciences et Techniques Universite, C.A. Diop, Dakar (Senegal)

A better knowledge of the combustion chemistry in very lean flames is required to improve flame stability and control the presence of oxygenated species as final products. In this work, the chemical structure of lean premixed propane-oxygen-nitrogen flames stabilized on a flat flame burner at atmospheric pressure was determined experimentally. The species mole fraction profiles were also computed by the Premix code (Chemkin II version) and three recently proposed mechanisms. Globally, the agreement between measured and computed mole fractions profiles is similar, despite large differences in the number of reactions in each mechanism. Pathways analyses show that only weak variations are observed in the relative importance of the main oxidation routes when the equivalence ratio is decreased from 0.9 to 0.5.

• OSTI ID: 20677684
• Journal Information: Combustion and Flame, Journal Name: Combustion and Flame Journal Issue: 3 Vol. 142; ISSN CBFMAO; ISSN 0010-2180
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
ATMOSPHERIC PRESSURE
COMBUSTION PRODUCTS
FLAMES
NITROGEN
OXYGEN
PROPANE
STABILITY