CH4/Air反扩散射流火焰多组分同步PLIF诊断

Research output: Contribution to journalArticle

Abstract

The simultaneous multi-species Planar Laser Induced Fluorescence technique plays an important role in studying the flame structure and the two-dimensional distribution of intermediate species in combustion. The experimental system of OH/CH2O/Acetone-PLIF was built in order to study the CH4-Air inverse diffusion jet (IDJ) flame. The system consists of two sets of lasers, two intensifier-CCD cameras, a temporal controller and several lenses. The strategy of fluorescence excitation, the method of synchronous timing control and image calibration procedures are discussed. The IDJ flame was studied using the simultaneous multi-species PLIF technique, and the reaction zone, pre-heating zone and fuel zone of IDJ flame were determined. Experimental results suggest that the IDJ flame is different from either the normal diffusion flame or the premixed jet flame. The behavior of this type of flame reveals similarity to the partially premixed flame. Compared to OH chemilumiscence images, simultaneous multi-species PLIF can provide more detail and information about the flame structure and it has huge potential in fundamental combustion studies and industrial burner experiments

Details

Authors
Organisations
External organisations
  • China Aerodynamics Research and Development Center
  • Warsaw University of Technology
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Mechanical Engineering

Keywords

  • Inverse diffusion jet flame, Multi-species, Planar laser induced fluorescence, Simultaneous diagnostic
Translated title of the contributionSimultaneous multi-species PLIF diagnostic on CH4-Air inverse diffusion jet flame
Original languageChinese
Pages (from-to)26-32
Number of pages7
JournalShiyan Liuti Lixue/Journal of Experiments in Fluid Mechanics
Volume32
Issue number1
Publication statusPublished - 2018 Feb
Publication categoryResearch
Peer-reviewedYes