Laminar burning velocities of methane--oxygen--diluent gas mixtures
The burning velocities of methane--oxygen--diluent mixtures were determined at atmospheric pressure by use of bunsen flames under laminar flow conditions. The fuel-lean region was investigated at theoretical flame temperatures of 2000, 2250 and 2500/sup 0/K employing nitrogen, helium and argon as diluents. By maintaining constant calculated flame temperatures for the different mixtures, evaluation of the effects of the properties of the diluent and of O/sub 2//CH/sub 4/ ratio was greatly simplified. The dependence of burning velocity on O/sub 2//CH/sub 4/ ratio was not in accord with the approximate theories of combustion. Therefore, an empirical expression was developed to describe the effect of diluent, O/sub 2//CH/sub 4/ ratio, and flame temperature on burning velocity. The evaluation of this expression is discussed in terms of effective transport properties and concentrations.
- Research Organization:
- Inst. of Gas Tech., Chicago
- OSTI ID:
- 5314600
- Journal Information:
- Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States), Journal Name: Am. Chem. Soc., Div. Gas Fuel Chem., Prepr.; (United States); ISSN ACGPA
- Country of Publication:
- United States
- Language:
- English
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