Relation to burning velocity, quenching distance, and flash-back velocity gradient for low- and intermediate-Btu gases

Technical Report · Wed Oct 18 00:00:00 EDT 1978

OSTI ID:5740348

Ball, D A; Putnam, A A; Radhakrishnan, E; Levy, A

Basically, this study is aimed at defining the chemistry of CO-H/sub 2/ interactions in combustion, in the presence of small amounts of CH/sub 4/, and at obtaining experimental data needed for the prediction of flame stabilities and flame sizes of low- and intermediate Btu gas mixtures over a wide range of mixture compositions. The program encompasses flame kinetics studies, and burning velocity, flashback, and quenching distance measurements for laboratory and field gas mixtures. Three specific objectives were involved. First, the results were to be used to define the ranges of compositions wherein the kinetics appear to follow normal patterns, and the interfaced regions where there appears to be a change in kinetic patterns; the information was to serve as a guide in the parallel kinetic studies in the overall program. Second, useful correlations with fuel composition were to be found for burning velocity, quenching distance, and flash-back velocity gradient over ranges of normally acting kinetics. Third, interrelations between burning velocity, quenching distance, and flash-back velocity gradient, as suggested in the literature, would be investigated. Covered in this report are the studies of flash-back, burning velocity, and quenching distance of CO - H/sub 2/ - CH/sub 4/-CO/sub 2/-N/sub 2/ mixtures. After outlining the methodology of composition selection, the three experimental rigs used in these studies are described, the individual sets of data are presented, and the various correlations are tested. Discussions of the data analysis, and conclusions reached therefrom, complete the report.

• Research Organization: Battelle Columbus Labs., OH (USA)
• DOE Contract Number: AC22-76ET10653
• OSTI ID: 5740348
• Report Number(s): DOE/ET/10653-3; ON: DE82010760
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC
ORGANIC
PHYSICAL AND ANALYTICAL CHEMISTRY
10 SYNTHETIC FUELS
08 HYDROGEN
01 COAL, LIGNITE, AND PEAT
BURNERS
DESIGN
CARBON DIOXIDE
COMBUSTION KINETICS
CARBON MONOXIDE
FLAMES
SIZE
STABILITY
TEMPERATURE MEASUREMENT
HYDROGEN
METHANE
NITROGEN
EXPERIMENTAL DATA
FLASHBACK
FORECASTING
FUEL-AIR RATIO
INTERMEDIATE BTU GAS
LOW BTU GAS
MIXTURES
QUENCHING
REYNOLDS NUMBER
SIMULATION
SYNTHETIC FUELS
VELOCITY
ALKANES
CARBON COMPOUNDS
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
DATA
DISPERSIONS
ELEMENTS
FLUIDS
FUEL GAS
FUELS
GAS FUELS
GASES
HYDROCARBONS
INFORMATION
KINETICS
NONMETALS
NUMERICAL DATA
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
REACTION KINETICS
400800* - Combustion
Pyrolysis
& High-Temperature Chemistry
090110 - Hydrocarbon Fuels- Properties- (1979-1989)
080800 - Hydrogen- Properties & Composition
014000 - Coal
Lignite
& Peat- Combustion