NDLI: Improvement of flame stability and NO$_{x}$ reduction in hydrogen-added ultra lean premixed combustion

Content Provider	Springer Nature Link
Author	Cho, Eun Seong Chung, Suk Ho
Copyright Year	2009
Abstract	Lean premixed combustion is a well known method in gas turbine combustors that can reduce fuel consumption and decrease flame temperature. In lean premixed flames, flame instabilities can occur because the combustion takes place near the lean flammable limit. For the purpose of increasing flame stability, a small amount of hydrogen was added into a fuel, which has ultra low lean flammable limit. The extinction stretch rate increased and total equivalence ratio at extinction decreased with hydrogen addition; consequently, ultra lean premixed combustion was possible and flame stability could be achieved at low temperature conditions. The NO$_{x}$ emission increased with hydrogen addition for the same stretch rate and equivalence ratio, but the extinction stretch rate and lean flammability limit was enlarged. Consequently, NO$_{x}$ emission decreased with hydrogen addition in the near extinction conditions. Hydrogen addition could improve flame stability and reduce NO$_{x}$ emission in ultra lean premixed combustion.
Starting Page	650
Ending Page	658
Page Count	9
File Format	PDF
ISSN	1738494X
Journal	Journal of Mechanical Science and Technology
Volume Number	23
Issue Number	3
e-ISSN	19763824
Language	English
Publisher	Korean Society of Mechanical Engineers
Publisher Date	2009-06-28
Publisher Place	Heidelberg
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Extinction stretch rate Flame stability Hydrogen addition NO$_{x}$ emission Ultra lean premixed combustion Industrial and Production Engineering Vibration, Dynamical Systems, Control Mechanical Engineering
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Mechanical Engineering

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