Active control of combustion oscillations in a lean premixed gas-turbine combustor

被引：0
作者：
Aeroengine Technology Centre, Japan Aerospace Exploration Agency, 7-44-1 Jindaiji-Higashi, Chofu, Tokyo 182-8522, Japan [1 ]
不详 [2 ]
不详 [3 ]
不详 [4 ]
不详 [5 ]
机构：
[1] Aeroengine Technology Centre, Japan Aerospace Exploration Agency, Chofu, Tokyo 182-8522
[2] Program Management and Integration Department, Japan Aerospace Exploration Agency, Chofu, Tokyo 182-8522
[3] Department of Mechanical Engineering, Aoyama Gakuin University, Sagamihara, Kanagawa 229-8558
[4] CATEC Inc., Taito-ku, Tokyo 111-0053
[5] Department of Mechanical and Aerospace Engineering, Tokyo Institute of Technology, Meguro-ku, Tokyo 152-8552
来源：
Int J Veh Des | 2007年 / 1-4卷 / 306-321期
关键词：
Active control of combustion; Combustion instability; Mixed H [!sup]2[!/sup]/H[!sup]∞[!/sup] control;
D O I：
10.1504/ijvd.2007.012309
中图分类号：
学科分类号：
摘要：
Active control of combustion oscillations occurring in a methane-air lean premixed model combustor is accomplished by the method of secondary fuel injection. The main flame is sustained by an axial vane swirler. The central part of the swirler is endowed a function as the secondary fuel injector. The fuel jets from the injector enhance the flame stability by producing rich stable flames in the region of the flame base. Open-loop controls by secondary fuel injection with constant flow rates have been conducted on a naturally unstable condition. The results show sensitivity to the injection amount. It indicates that the flame base is very sensitive to the additional fuel distribution. A similar discussion is made on NOx emission also. Finally, a closed-loop control has been performed by implementing the mixed H2/H∞ controller. An obvious effect of the closed-loop control on the suppression of pressure oscillations is found without loosing an advantage for low NOx emissions. Copyright © 2007 Inderscience Enterprises Ltd.
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页码：306 / 321
页数：15
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