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http://dx.doi.org/10.6108/KSPE.2017.21.2.001

Combustion Characteristics of Methane-Oxygen Diffusion Flame Formed by Swirl-coaxial Injector  

Bae, Seong Hun (Department of Mechanical Engineering, Pukyong National University)
Hong, Joon Yeol (Department of Mechanical Engineering, Pukyong National University)
Kim, Heuy Dong (Department of Mechanical Engineering, Andong National University)
Kim, Jeong Soo (Department of Mechanical Engineering, Pukyong National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.21, no.2, 2017 , pp. 1-8 More about this Journal
Abstract
In order to analyze combustion characteristics of methane-oxygen diffusion flame in a model combustor, combustion experiments were carried out under various spray conditions of propellant scrutinizing combustion stability limit and flame shapes. As the propellant approached the theoretical equivalence ratio condition, a stable detached flame was observed even under high oxygen Reynolds number. And the length of the visible flame increased and the lift-off distance of the flame exhibited a tendency toward decrease. Due to the swirl effect of the propellant by the swirl-coaxial injector, a wide and short flame was produced. Thus, it may be appropriate to employ the swirl-coaxial injector in thrusters having a limited physical dimension.
Keywords
Bipropellant; Methane; Swirl Coaxial Injector; Diffusion Flame; Combustion Characteristics;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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