Aerodynamic modeling and scale-up of a low NO{sub x} oil burner

Book · Tue Dec 31 04:00:00 EST 1996

OSTI ID:427861

Haynes, J M; Beer, J M ^[1]; Toqan, M A ^[2]

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1. Massachusetts Inst. of Tech., Cambridge, MA (United States). Dept. of Chemical Engineering
2. ABB Power Plant Labs., Windsor, CT (United States); and others

Results of computational and experimental studies in support of the design of a low NO{sub x} oil burner are presented. Radial density stratification is utilized in the Radially Stratified Flame Core (RSFC) burner to reduce the air-fuel mixing in the flame`s near burner flow field and increase the fuel-rich zone residence time in order to reduce NO{sub x} emissions. In the course of the modeling, relationships were established between flow field and flame characteristics in search of an optimal flow pattern leading to low emissions without excessive flame length. The optimal flow pattern was dominated by two internal recirculating zones (IRZ), both produced by the rotating burner air flow. The key burner variables are the radial distributions of the axial and tangential components of the burner air velocity, the fuel spray angle and droplet size distribution. The trends of the modeling data are compared with those of experimental data obtained in full scale tests.

• OSTI ID: 427861
• Report Number(s): CONF-961006--; ISBN 0-7918-1795-4
• Country of Publication: United States
• Language: English

Related Subjects

02 PETROLEUM
42 ENGINEERING
AERODYNAMICS
AIR POLLUTION ABATEMENT
DESIGN
EXPERIMENTAL DATA
FUEL OILS
NITROGEN OXIDES
OIL BURNERS