Oxides of nitrogen emissions from turbulent hydrocarbon/air jet diffusion flames. Final report, phase 2, January 1990-August 1992

Technical Report · Tue Sep 01 04:00:00 EDT 1992

OSTI ID:6889225

Turns, S R; Bandaru, R V

Measurements of oxides of nitrogen and carbon monoxide emission indices, flame radiant fractions, and visual flame dimensions were made for turbulent jet diffusion flames covering a wide range of test conditions. Parameters investigated included: initial jet velocity, jet diameter, fuel type, fuel dilution with inerts, partial premixing with air, and location and quantity of radial air injection. Detailed temperature measurements were also obtained for selected test conditions. The objectives of the study were, first, to develop a well-characterized data base to guide modeling efforts, and second, to understand the relationships among NOx and CO emissions and flow conditions, fuel variables, and flame radiation. A major finding of the study was that the effects on NOx of residence time, flame temperature, and departure of the radical pool from equilibrium, whether caused by variations in initial jet velocity, jet diameter, fuel type, fuel dilution, or partial premixing, were well-characterized using two parameters: a characteristic nonadiabatic flame temperature, and a global residence time. Additional fuel-type dependencies, relating to the relative importance of prompt NO, were also found.

• Research Organization: Pennsylvania State Univ., University Park, PA (United States). Propulsion Engineering Research Center
• OSTI ID: 6889225
• Report Number(s): PB-93-152478/XAB; PSU-ME-R--90/91-0005; CNN: GRI-5086-260-1308
• Country of Publication: United States
• Language: English

Related Subjects

33 ADVANCED PROPULSION SYSTEMS
330701 -- Emission Control-- Nitrogen Oxides
330702 -- Emission Control-- Carbon Monoxide
54 ENVIRONMENTAL SCIENCES
540120* -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (1990-)
AIR POLLUTION
CARBON COMPOUNDS
CARBON MONOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL REACTIONS
COMBUSTION
COMBUSTION PRODUCTS
DATA BASE MANAGEMENT
DIFFUSION
EXHAUST GASES
FLAMES
FLUID FLOW
FLUIDS
FUELS
GASEOUS WASTES
GASES
HYDROCARBONS
JET ENGINE FUELS
MANAGEMENT
MONITORING
NITROGEN COMPOUNDS
NITROGEN OXIDES
ORGANIC COMPOUNDS
OXIDATION
OXIDES
OXYGEN COMPOUNDS
POLLUTION
TEMPERATURE DISTRIBUTION
TEMPERATURE MEASUREMENT
THERMOCHEMICAL PROCESSES
TURBULENT FLOW
WASTES