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http://dx.doi.org/10.6108/KSPE.2016.20.4.040

Effect of Swirl Angles and Combustion Characteristics of Low Swirl Model Combustor  

Jeong, Hwanghui (Department of Aerospace Engineering, Sunchon National University)
Lee, Keeman (School of Aerospace and Mechanical Engineering, Sunchon National University)
Publication Information
Journal of the Korean Society of Propulsion Engineers / v.20, no.4, 2016 , pp. 40-49 More about this Journal
Abstract
This study aims to confirm the characteristics of low swirl combustion at our low swirl model combustor. To do it, it is experimentally conducted by evaluating the flame shape, stability region and emissions according to the swirl angle. The most significant feature of low swirl combustion is a occurrence of lifted flame. Such lifted flames happen to combine exquisitely propagating feature of premixed flame with diverging flow. This feature of lifted flame was confirmed through a velocity flow field and visualized the flame in this model combustor. The visualized flame was classified according to the thermal power and equivalence ratio. The variation study in swirl angles showed that the lean flammable limit could be extended only by swirl angles. Also, as the swirl angle increased, it was confirmed that the NOx and CO emissions were decreased due to the mixing enhancement and shorter resident time.
Keywords
Low Swirl Combustion; Particle Image Velocity; Swirl Angle; Lean Flammable Limit;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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