Multivariate Study of the Effects of Geometric Design Parameters on Furnace Performance

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Title Multivariate Study of the Effects of Geometric Design Parameters on Furnace Performance
Creator Chang, A.; Samuelsen, G. S.
Publisher Digitized by J. Willard Marriott Library, University of Utah
Date 1997
Spatial Coverage presented at Chicago, Illinois
Abstract In low - NOx burner designs, small changes in burner geometry can significantly increase, or reduce, NOx and CO emissions. Of interest is the optimal design for a given configuration. Rather than testing all possible burner configurations, a design of experiments (DoE) can be used to optimize the testing process by systematically varying the parameters. The statistics-based analysis of variance (ANOVA) can then be used to analyze the results to identify effects of parameters on the responses or interactions between parameters. In the present case, a specially designed (for parametric flexibility) practical burner was utilized. The parameters and their ranges include: a) flame holder angle (30°, 90°); b) fuel injection hole diameter (0.1", 0.3"); c) fuel injection hole location (1.25", 4.25" from base of flame holder); and d) swirl angle (30°, 60°). Results show that CO concentrations and combustion efficiency are not affected by the hardware changes. However, NOx emissions are affected by an interaction between the fuel injection hole diameter and the swirl angle. In particular, in the present case, lower NOx emissions are achieved by either a combination of smaller fuel injection hole diameter and larger swirl angle or a combination of larger fuel injection hole diameter and smaller swirl angle.
Type Text
Format application/pdf
Language eng
Rights This material may be protected by copyright. Permission required for use in any form. For further information please contact the American Flame Research Committee.
Conversion Specifications Original scanned with Canon EOS-1Ds Mark II, 16.7 megapixel digital camera and saved as 400 ppi uncompressed TIFF, 16 bit depth.
Scanning Technician Cliodhna Davis
Metadata Cataloger Kendra Yates
ARK ark:/87278/s6v98bph
Setname uu_afrc
Date Created 2012-05-15
Date Modified 2012-09-05
ID 13876
Reference URL https://collections.lib.utah.edu/ark:/87278/s6v98bph