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Record 3 of 21
Exhaust gas emissions of a vortex breakdown stabilized combustor
Author and Affiliation:
Yetter, R. A.(Cornell University, Ithaca, N.Y., United States)
Gouldin, F. C.(Cornell Univ., Ithaca, NY, United States)
Abstract: Exhaust 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.
Publication Date: Oct 01, 1976
Document ID:
19770060745
(Acquired Dec 01, 1995)
Accession Number: 77A43597
Subject Category: INORGANIC AND PHYSICAL CHEMISTRY
Report/Patent Number: WSS/CI PAPER 76-33
Document Type: Conference Paper
Publisher Information: United States
Meeting Information: Fall Meeting of Combustion Institute; Oct. 18-20, 1976; La Jolla, CA
Meeting Sponsor: Combustion Institute
Contract/Grant/Task Num: NSF GI-36538; NSG-3019
Financial Sponsor: NASA; United States
Organization Source: Cornell Univ.; Ithaca, NY, United States
Description: 54p; In English
Distribution Limits: Unclassified; Publicly available; Unlimited
Rights: Copyright
NASA Terms: COMBUSTION CHAMBERS; COMBUSTION STABILITY; EXHAUST GASES; HYDROCARBON COMBUSTION; JET EXHAUST; VORTEX BREAKDOWN; CARBON MONOXIDE; GAS EVOLUTION; METHANE; NITRIC OXIDE; SHEAR LAYERS; SWIRLING
Imprint And Other Notes: Combustion Institute, Fall Meeting, La Jolla, Calif., Oct. 18-20, 1976, 54 p.
Availability Source: Other Sources
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