燃烧诱发热声不稳定控制的研究进展  

Progress of controlling studies on combustion induced thermoacoustic instability

作　　者：李国能[1] 林江[1] 李凯[1] 

机构地区：[1]浙江科技学院轻工学院,杭州310023

出　　处：《浙江科技学院学报》2010年第4期266-272,共7页Journal of Zhejiang University of Science and Technology

基　　金：浙江省高校优秀青年教师资助计划(浙教办高科(2009)164号);浙江省高等学校创新团队资助项目(T200918)

摘　　要：针对贫燃预混低NOx燃气轮机的燃烧诱发热声不稳定问题,说明了燃烧热声不稳定的起源、特点和危害,详细阐述了当前燃烧热声不稳定控制研究的现状,分析了热声不稳定的被动控制和主动控制的概念、应用和各自特点。被动控制和主动控制的核心思想是一致的,通过重新设计或外加干扰解耦火焰热释放脉动与声场的相互作用。The origin,characteristics and its hazards of thermoacoustic instability induced by combustion inside the lean premixed low NOx gas turbines are illustrated.The state of art about the controlling studies on thermoacoustic instability is presented,and discussions are made to address the concepts,applications and features of the passive control and the active control.The underling sole spirit of these controlling methods is consistent with each other,i.e.decoupling the oscillating heat release and the sound field through redesign of the combustor or through introducing outside perturbations.

关 键 词：热声不稳定 被动控制 主动控制 

分 类 号：TK124[动力工程及工程热物理—工程热物理]