Skip to main content
OSTI.GOVU.S. Department of Energy Office of Scientific and Technical Information
U.S. Department of Energy
Office of Scientific and Technical Information
 

Multiple ignition, normal and catalytic combustion and quenching of fuel/air mixtures. Annual report

Technical Report ·
OSTI ID:6310635
; ; ;
Lean combustion of propane in platinum/alumina/cordierite catalysts has been studied at atmospheric pressure, gas velocities of 10-40 m/s, C3H8 equivalence ratios of .19 to .32 and H2O concentration of 1.2 to 1.7 mol %. Measurements of substrate temperature and gas composition, pressure, and temperature inside and downstream of the catalyst have been made. The dependences of substrate temperature, gas temperature, and gas composition of inlet temperature, reference velocity, and equivalence ratio have been investigated. A two-dimensional model of the gas-phase including the effect of finite-rate chemical kinetics at the substrate surface has been developed and tested. When the experimental wall temperature is used as boundary condition for the gas-phase equations, the emission predictions are in reasonably good agreement with the measured ones. The indications obtained from the model are that propane is oxidized via a multi-step kinetic mechanism, that in the range of temperatures and equivalence ratios explored, most of the fuel is burnt at the catalytic wall rather than in the gas phase, and that wall kinetics is slower than gas diffusion transport.
Research Organization:
Princeton Univ., NJ (USA). Guggenheim Labs. for the Aerospace Propulsion Sciences
OSTI ID:
6310635
Report Number(s):
AD-A-092738
Country of Publication:
United States
Language:
English

Similar Records

High temperature catalytically assisted combustion. Final report 1 Jun 80-31 May 81
Technical Report · Sat Aug 01 00:00:00 EDT 1981 · OSTI ID:6538325
Multiple ignition, normal and catalytic combustion and quenching of fuel/air mixtures. Interim report 1 Jun 77-31 May 78
Technical Report · Tue Oct 31 23:00:00 EST 1978 · OSTI ID:5803686
Catalytic ignition and combustion of lean mixtures. Final report
Technical Report · Sat Dec 31 23:00:00 EST 1983 · OSTI ID:5812057

Related Subjects

090110* -- Hydrocarbon Fuels-- Properties-- (1979-1989)
10 SYNTHETIC FUELS
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
ALUMINIUM COMPOUNDS
ALUMINIUM OXIDES
CATALYSIS
CHALCOGENIDES
CHEMICAL REACTION KINETICS
CHEMICAL REACTIONS
COMBUSTION
ELEMENTS
EMISSION SPECTRA
FLUIDS
FORECASTING
FUEL-AIR RATIO
GASES
HYDROCARBONS
IGNITION
KINETICS
METALS
OPERATION
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
PLATINUM
PLATINUM METALS
POWDERS
PRESSURE MEASUREMENT
PROPANE
REACTION KINETICS
SPECTRA
SUBSTRATES
TEMPERATURE MEASUREMENT
THERMOCHEMICAL PROCESSES
TRANSITION ELEMENTS
VELOCITY