纳米技术与精密工程
納米技術與精密工程
납미기술여정밀공정
NANOTECHNOLOGY AND PRECISION ENGINEERING
2007年
2期
79-84
,共6页
微型燃烧器%性能评定%流速%燃气比率%热电偶
微型燃燒器%性能評定%流速%燃氣比率%熱電偶
미형연소기%성능평정%류속%연기비솔%열전우
micro combustor%assemble%flow rate%equivalence ratio%thermocouple
本文系《基于硅材料的微型气体涡轮机中微型燃烧器的设计和加工》之续篇,阐述了一种由7层硅片组成的微型燃烧器的组件装配,检测结构设计及其性能评定.用氢气作为燃料,成功地引燃了该燃烧器并使其保持持续稳定的燃烧.用微型K-type热电偶测试和评定了燃烧腔出口处的温度分布以及腔壁的温度.经实验证实,在特定的燃气比率及流量的条件下,燃烧腔出口处的最高温度可达1 700 K,且排出的废气中残留氢气的含量甚微.
本文繫《基于硅材料的微型氣體渦輪機中微型燃燒器的設計和加工》之續篇,闡述瞭一種由7層硅片組成的微型燃燒器的組件裝配,檢測結構設計及其性能評定.用氫氣作為燃料,成功地引燃瞭該燃燒器併使其保持持續穩定的燃燒.用微型K-type熱電偶測試和評定瞭燃燒腔齣口處的溫度分佈以及腔壁的溫度.經實驗證實,在特定的燃氣比率及流量的條件下,燃燒腔齣口處的最高溫度可達1 700 K,且排齣的廢氣中殘留氫氣的含量甚微.
본문계《기우규재료적미형기체와륜궤중미형연소기적설계화가공》지속편,천술료일충유7층규편조성적미형연소기적조건장배,검측결구설계급기성능평정.용경기작위연료,성공지인연료해연소기병사기보지지속은정적연소.용미형K-type열전우측시화평정료연소강출구처적온도분포이급강벽적온도.경실험증실,재특정적연기비솔급류량적조건하,연소강출구처적최고온도가체1 700 K,차배출적폐기중잔류경기적함량심미.
This paper is a continued report of our previous publication "design and fabrication of a silicon-based micro combustor for micro gas turbine engine". This paper presents the assembly, test fixture design and performance characterization of the micro combustor, which consists of seven layers of silicon wafers. The combustor was easily ignited and a stable, continuous combustion was sustained using hydrogen as its fuel. K-type thermocouples were selected to measure the temperature distribution at exit and wall temperature of combustion chamber as well. The exit temperature reached as high as 1 700 K at a selected equivalence ratio and flow rate of hydrogen-air mixture, and the residual hydrogen in the exhausted gas was extremely low.
