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Exhaust gas emissions of a vortex breakdown stabilized combustorExhaust gas emission data are described for a swirl stabilized continuous combustor. The combustor consists of confined concentric jets with premixed fuel and air in the inner jet and air in the outer jet. Swirl may be induced in both inner and outer jets with the sense of rotation in the same or opposite directions (co-swirl and counter-swirl). The combustor limits NO emissions by lean operation without sacrificing CO and unburned hydrocarbon emission performance, when commercial-grade methane and air fired at one atmosphere without preheat are used. Relative swirl direction and magnitude are found to have significant effects on exhaust gas concentrations, exit temperatures, and combustor efficiencies. Counter-swirl gives a large recirculation zone, a short luminous combustion zone, and large slip velocities in the interjet shear layer. For maximum counter-swirl conditions, the efficiency is low.
Document ID
19770060745
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Yetter, R. A.
(Cornell University Ithaca, N.Y., United States)
Gouldin, F. C.
(Cornell Univ. Ithaca, NY, United States)
Date Acquired
August 9, 2013
Publication Date
October 1, 1976
Subject Category
Inorganic And Physical Chemistry
Report/Patent Number
WSS/CI PAPER 76-33
Meeting Information
Meeting: Fall Meeting of Combustion Institute
Location: La Jolla, CA
Start Date: October 18, 1976
End Date: October 20, 1976
Sponsors: Combustion Institute
Accession Number
77A43597
Funding Number(s)
CONTRACT_GRANT: NSG-3019
CONTRACT_GRANT: NSF GI-36538
Distribution Limits
Public
Copyright
Other

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