Effect of flame temperature and fuel composition on sooting tendency in a research combustor. Interim report Jun 80-Oct 81

Technical Report · Mon Nov 30 23:00:00 EST 1981

OSTI ID:6510925

Naegeli, D W; Dodge, L G; Moses, C A

Several fuel blends containing alkyl benzenes, methyl naphthalenes, tetralin and indene were prepared with hydrogen contents ranging from 11.5 to 14.2 percent. The effects of burner inlet conditions on the sooting tendency of the test fuels were measured in a Phillips 2-inch diameter cylindrical combustor capable of inlet pressures and temperatures up to 1.6 MPa and 1030K, respectively. Both flame radiation and opacity measurements were used to determine the soot formed in the primary zone of the burner. Flame temperature was measured by the Kurlbaum method. Combustion efficiency and fuel/air ratio were determined from gaseous emissions. A sensitivity of sooting tendency to H/C ratio was determined from the correlation of flame radiation intensity with H/C ratio. This sensitivity varied significantly with operating parameters such as burner inlet temperature and reference velocity. The effects of polycyclic aromatics were determined by comparing the sensitivity to H/C ratio of fuels containing alkyl naphthalenes and tetralin to that of the fuels blended with alkyl benzenes. The increased sooting tendency of fuels containing alkyl naphthalenes and tetralin was most strongly dependent on the fuel/air ratio and the reference velocity.

• Research Organization: Southwest Research Inst., San Antonio, TX (USA). Army Fuels and Lubricants Research Lab.
• OSTI ID: 6510925
• Report Number(s): AD-A-116421/9
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
025000* -- Petroleum-- Combustion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
ALKYL RADICALS
AROMATICS
BENZENE
CHEMICAL REACTIONS
COMBUSTION
COMBUSTORS
CONDENSED AROMATICS
DISPERSIONS
ELEMENTS
FLAMES
FUELS
HYDROCARBONS
HYDROGEN
METHYL RADICALS
MIXTURES
NAPHTHALENE
NONMETALS
ORGANIC COMPOUNDS
OXIDATION
POLYCYCLIC AROMATIC HYDROCARBONS
RADICALS
SOOT
THERMOCHEMICAL PROCESSES