Fuels combustion research. Annual report, 1 March 1983-29 February 1984

Technical Report · Wed Jul 18 04:00:00 EDT 1984

OSTI ID:5893466

Dryer, F L; Glassman, I; Williams, F A

Further oxidation studies of the n-alkylated aromatics reveal insights with respect to the oxidation of the alkyl side chains. Toluene is unique in its oxidation due to the nonreactivity of the benzyl radical that forms. The higher normal alkyl aromatics all form styrene and allyl radicals during the initial stages of oxidation. Thus the oxidation of these fuels will all be similar to ethyl benzene. The first results on the oxidation 1-methyl naphthalene have been obtained. A study on the oxidation and pyrolysis of butadiene, an important aromatic intermediate and soot precursor, has been completed. More extensive experimentation on the sooting tendencies in premixed and diffusion flames has been performed. The new fuels used were the cycloalkanes, the cycloolefins, purified 1,3-butadiene and 1-methyl naphthalene. A new model for sooting under premixed conditions reveals that original fuel structure does not play a role in soot production, but the number of carbon-carbon bonds in the fuel do. Diffusion flame results confirm that fuel pyrolysis rates and intermediates determine the sooting tendency in this combustion system. The new theory of boron ignition and combustion has been improved further. Appropriate droplet generators for boron and carbon slurries have been developed.

• Research Organization: Princeton Univ., NJ (USA). Dept. of Mechanical and Aerospace Engineering
• OSTI ID: 5893466
• Report Number(s): AD-A-149106/7/XAB
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKANES
ALKENES
AROMATICS
BORON
CARBON
CHEMICAL REACTIONS
COMBUSTION
CYCLOALKANES
DECOMPOSITION
DIFFUSION
DISPERSIONS
ELEMENTS
FLAMES
FLUID FLOW
FUELS
HYDROCARBONS
IGNITION
MIXTURES
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
PYROLYSIS
RESEARCH PROGRAMS
SEMIMETALS
SLURRIES
SOOT
SUSPENSIONS
THERMOCHEMICAL PROCESSES
TURBULENT FLOW