纯环路型和混合型行波热声发动机的对比实验  

Contrast Experiment of Travelling-wave Thermo-acoustic Engines of Pure Loop and Hybrid Type

作　　者：王红丽[1] 汪双凤[1] 

机构地区：[1]华南理工大学传热强化与过程节能教育部重点实验室,广东广州510640

出　　处：《热能动力工程》2010年第3期273-277,355-356,共7页Journal of Engineering for Thermal Energy and Power

摘　　要：研制了以陶瓷为板叠的行波热声发动机实验装置,进行了纯环路型与混合型行波热声发动机热力性能的对比实验研究,分析了系统的起振和消振过程及机理,研究了加热端温度、冷却端温度和回热器对系统性能的影响。结果表明,混合型行波热声发动机比纯环路型行波热声发动机具有更低的起振温度;且随着冷却端温度的升高,系统的起振温度也随着升高;回热器孔径对系统的性能有较大的影响,本实验中回热器孔径为0.8mm时系统起振温度最低;实验过程中还发现了"二次起振"现象。A travelling-wave thermo-acoustic engine test rig was developed with ceramic material serving as a plate stack. A contrast experiment of the thermodynamic performance of thermo-acoustic engines of pure loop and hybrid type was conducted. In this connection,the vibration initiation and elimination process of the system and their mechanism were analyzed and the influence of the heating end temperature,cooling end temperature and recuperator on the system performance was also studied. The research results show...

关 键 词：热声发动机 纯环路型和混合型 起振 消振 回热器 

分 类 号：TK407[动力工程及工程热物理—动力机械及工程]