Measuring Fuel Stratification in Cylinder of a Spark Ignition Engine by a Two-Tracer PLIF System

作     者：LI Yufeng ZHAO Hua 

作者机构：China North Engine Research Institute Tianjin 300400 China Brunel University Uxbridge UB8 3PH UK 

出 版 物：《工程热物理学报》 (Journal of Engineering Thermophysics)

年 卷 期：2013年第34卷第9期

页      面：1755-1761页

核心收录：

学科分类：080703[工学-动力机械及工程] 08[工学] 0807[工学-动力工程及工程热物理] 

基　　金：Engineering and Physical Sciences Research Council(EPSRC) in the UK(Grant No.GR/M97909/01(P)) 

主　　题：Spark ignition engine PLIF Charge stratification 

摘      要：A two-tracer PLIF system was developed to measure fuel stratification in cylinder of a spark ignition engine which is achieved by producing a strong tumbling flow and introducing two fuels through two separate intake *** tracers,3-pentanone and N,N-dimethylaniline(DMA),were doped in two fuels,hexane and iso-octane,respectively.A spectroscopic test result showed that when subject to irradiation by a XeCl Excimer laser(308 nm),3-pentanone and DMA emit fluorescence within different wavelength *** fluorescence can be separated by two band-pass optical filters and recorded into a single intensified CCD camera through a specially designed image doubling *** advantage of the measurement method is that both fuel distributions in cylinder can be visualized by one *** results showed that two fuels were well stratified in the cylinder.