Strain-induced extinction of hydrogen-air counterflow diffusion flames - Effects of steam, CO2, N2, and O2 additives to air
Conference
·
OSTI ID:5181885
- NASA, Langley Research Center, Hampton, VA (United States) Lockheed Engineering and Sciences Co., Hampton, VA (United States)
A fundamental study was performed using axisymmetric nozzle and tubular opposed jet burners to measure the effects of laminar plug flow and parabolic input velocity profiles on the extinction limits of H2-air counterflow diffusion flames. Extinction limits were quantified by 'flame strength', (average axial air jet velocity) at blowoff of the central flame. The effects of key air contaminants, on the extinction limits, are characterized and analyzed relative to utilization of combustion contaminated vitiated air in high enthalpy supersonic test facilities. 37 refs.
- Research Organization:
- National Aeronautics and Space Administration, Hampton, VA (United States). Langley Research Center
- OSTI ID:
- 5181885
- Report Number(s):
- AIAA-Paper--92-0877; CONF-920157--
- Country of Publication:
- United States
- Language:
- English
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·
Sat Dec 31 23:00:00 EST 1988
·
OSTI ID:5652745
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Book
·
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· Combustion and Flame
·
OSTI ID:543421
Related Subjects
08 HYDROGEN
083000* -- Hydrogen-- Combustion-- (1990-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
AIR
AIR TRANSPORT
BURNERS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COUNTERFLOW SYSTEMS
DIFFUSION
ELEMENTS
ENTHALPY
FLAMES
FLUID FLOW
FLUIDS
FUELS
GASES
HYDROGEN FUELS
INHIBITION
KINETICS
LAMINAR FLOW
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
NOZZLES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
REACTION KINETICS
STRAIN RATE
SUPERSONIC TRANSPORT
SYNTHETIC FUELS
TEST FACILITIES
THERMODYNAMIC PROPERTIES
TRANSPORT
083000* -- Hydrogen-- Combustion-- (1990-)
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
AIR
AIR TRANSPORT
BURNERS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTION KINETICS
COMBUSTION KINETICS
COMBUSTION PRODUCTS
COUNTERFLOW SYSTEMS
DIFFUSION
ELEMENTS
ENTHALPY
FLAMES
FLUID FLOW
FLUIDS
FUELS
GASES
HYDROGEN FUELS
INHIBITION
KINETICS
LAMINAR FLOW
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
NOZZLES
OXIDES
OXYGEN
OXYGEN COMPOUNDS
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
REACTION KINETICS
STRAIN RATE
SUPERSONIC TRANSPORT
SYNTHETIC FUELS
TEST FACILITIES
THERMODYNAMIC PROPERTIES
TRANSPORT