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http://dx.doi.org/10.15231/jksc.2017.22.1.039

Combustion Instability Analysis of Partially Premixed Model Gas Turbine Combustor with 1D Lumped Method  

Kim, Jeongjin (Department of Mechanical and Aerospace Engineering, Seoul National University)
Yoon, Jisu (Department of Mechanical and Aerospace Engineering, Seoul National University)
Joo, Seongpil (Department of Mechanical and Aerospace Engineering, Seoul National University)
Kim, Seongheon (Department of Mechanical and Aerospace Engineering, Seoul National University)
Sohn, Chae Hoon (Department of Mechanical Engineering, Sejong University)
Yoon, Youngbin (Department of Mechanical and Aerospace Engineering, Seoul National University)
Publication Information
Journal of the Korean Society of Combustion / v.22, no.1, 2017 , pp. 39-45 More about this Journal
Abstract
Combustion instability analysis of partially premixed model gas turbine combustor was conducted with 1D lumped method. Flame Transfer Function(FTF) was obtained with variation of fuel composition by Photo Multiplier Tube(PMT) and Hot Wire Anemometry(HWA). Decreasing instability frequency was observed when combustor length increased and multi-mode instability was confirmed. Instability frequency mode was changed while $H_2$ composition rate was increased and had agreement with experimental value. This work confirms that prediction of longitudinal combustion instability mode of partially premixed combustor is possible using 1D lumped method.
Keywords
Combustion instability; Multi-mode instability; Flame transfer function; 1D lumped method; Instability prediction;
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Times Cited By KSCI : 3  (Citation Analysis)
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