Keywords
Hydrogen, NOx emission, Flame unsteadiness, Burke-Schumann, Lewis number, Damkohler number
Abstract
Experimental studies on the coupled effects of transport properties and unsteady fluid dynamics have been conducted on laminar, acoustically forced, hydrogen jet diffusion flames diluted by argon and helium. The primary purpose of this research is to determine how the fuel Lewis number and the flow unsteadiness play a combined role in maximum flame temperature and affect NOx emission from jet diffusion flame. The fuel Lewis number is varied by increasing/decreasing the mole fraction of diluents in the fuel stream. Therefore, maximum flame temperatures and then NOx emission levels were expected to differ for Ar- and He-diluted flames. In an investigation of unsteady flames, two different frequencies (10 and 100 Hz) were applied to observe a behavior of NOx emission levels and flame lengths by changes of unsteady fluid dynamics and transport properties.
Notes
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Graduation Date
2005
Semester
Summer
Advisor
Chen, Ruey-Hung
Degree
Master of Science in Mechanical Engineering (M.S.M.E.)
College
College of Engineering and Computer Science
Department
Mechanical, Materials, and Aerospace Engineering
Degree Program
Mechanical Engineering
Format
application/pdf
Identifier
CFE0000646
URL
http://purl.fcla.edu/fcla/etd/CFE0000646
Language
English
Release Date
August 2005
Length of Campus-only Access
None
Access Status
Masters Thesis (Open Access)
STARS Citation
Park, Doyoub, "Effects Of Transport Properties And Flame Unsteadiness On Nitrogen Oxides Emissions From Laminar Hydrogen Jet Diffusion Flames" (2005). Electronic Theses and Dissertations. 483.
https://stars.library.ucf.edu/etd/483