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Effects of location and direction of diluent injection on radiation and pollutant emissions of a burning spray

Journal Article · · Journal of Energy Resources Technology; (USA)
DOI:https://doi.org/10.1115/1.3231395· OSTI ID:5207254
;  [1]
  1. Oklahoma Univ., Norman, OK (USA). School of Aerospace, Mechanical and Nuclear Engineering
+ Show Author Affiliations

Introduction of diluents into diffusion flames is an effective method of changing their combustion and pollutant emission characteristics. Since the dominant thermochemical processes vary from region to region of a burning spray diluent injection at different locations of a flame can affect its overall characteristics differently. This study examines the effects of location and orientation of N/sub 2/ injection into an air-atomized kerosene spray flame. Flame length, radiant emission, temperature profiles, flame opacity, and concentration profiles of NO, CO, and soot are measured. The overall emission indexes of NO, CO, and soot are calculated. Results show that the diluent injection in the axial downstream direction is superior to the radial injection from the point of reducing heat less of the combustor walls. The location of injection affects flame characteristics substantially. Injection of diluent into midflame region produces largest reductions in radiation, flame length, and emissions of soot and CO. Nitric oxide emission does not depend significantly on the location of injection.

OSTI ID:
5207254
Journal Information:
Journal of Energy Resources Technology; (USA), Journal Name: Journal of Energy Resources Technology; (USA) Vol. 111:1; ISSN 0195-0738; ISSN JERTD
Country of Publication:
United States
Language:
English

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Related Subjects

02 PETROLEUM
023000 -- Petroleum-- Properties & Composition
025000 -- Petroleum-- Combustion
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400800* -- Combustion
Pyrolysis
& High-Temperature Chemistry
54 ENVIRONMENTAL SCIENCES
540120 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
ADDITIVES
AIR POLLUTION MONITORING
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
COMBUSTION PRODUCTS
COMBUSTORS
DIFFUSION
ELEMENTS
EMISSION
FLAMES
FUELS
KEROSENE
LIQUID FUELS
NITRIC OXIDE
NITROGEN
NITROGEN COMPOUNDS
NITROGEN OXIDES
NONMETALS
OXIDES
OXYGEN COMPOUNDS
PETROLEUM PRODUCTS
POLLUTANTS
SOOT