Imaging and diagnostics of turbulent methane-air premixed flames by acetone-OH simultaneous PLIF

被引：0
作者：
Y. Nakamura
S. Manome
H. Yamashita
机构：
[1] Hokkaido University,Division of Mechanical and Space Engineering
[2] Toho Gas Co. Ltd,Department of Mechanical Science Engineering
[3] Nagoya University,undefined
来源：
Journal of Visualization | 2008年 / 11卷
关键词：
Flame imaging; PLIF; Acetone; OH; Turbulent flame;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
A strategy of diagnostics of ultra-lean combustion based on acetone-OH simultaneous PLIF is presented. Acetone seeded in the fuel flow and combustion-generated OH work for a marker of \ldunburned\rd and \ldburnt\rd zones, respectively. Since acetone and OH does not coexist when the proper combustion takes place, the signal \ldvalley\rd (dark zone) between acetone and OH fluorescence can be detected, which corresponds to flame zone; representative of the combustion status. System required for current imaging technique is one-laser and one-detector combination with \ldturned\rd band-pass filter. Transmittance characteristics of the filter and acetone-seeding rate are key issues to attain clear imaging, and we found that there is proper combination of them for that purpose. Imaging demonstration for the turbulent premixed flames shows the usefulness and applicability of this scheme on complex flame diagnostics: unique flame broken flame structure (\ldunburned\rd or \ldburnt\rd islands exist separately) are clearly obtained by this approach.
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页码：71 / 78
页数：7
相关论文
共 84 条
  • [1] Allen M. G.(1986)Digital Imaging of Reaction Zones in Hydrocarbon-Air Flames using Planar Laser-Induced Fluorescence of CH and C Optics Letter 11-3 126-128
  • [2] R. D. R. K.(2000)Simultaneous Single-Shot Laser-Based Imaging of Formaldehyde, OH, and Temperature in Turbulent Flames Proc. Combust. Inst. 28-1 279-286
  • [3] Hanson S.(2000)Acetone Laser Induced Fluorescence for Low Pressure/Low Temperature Flow Visualization Exp. Fluids 28-5 471-476
  • [4] Bockle J.(1997)Simultaneous Rayleigh Scattering and Laser-Induced CH Fluorescence for Reaction Zone Imaging in High-Speed Premixed Hydrocarbon Flames Applied Physics B. 64-5 599-605
  • [5] Kazenwadel T.(1999)The Mechanics of Two-Dimensional Pocket Formation in Lean Premixed Methane-Air Flames with Implications to Turbulent Combustion Combust. Flame 116 15-48
  • [6] Kunzelmann D.-I.(2006)Simultaneous Measurement of Temperature and Fuel Mole Fraction using Acetone Planar Laser-Induced Fluorescence and Rayleigh Scattering in Stratified Flames Exp. Fluids 40 452-463
  • [7] Shin C.(2000)Short-Flame/Quick —Quench: A Unique Ultralow Emissions Combustion Concept for GasTurbine Combustors Proc. Combust. Inst. 28-1 1273-1280
  • [8] Schulz J.(2007)Temperature Dependence of Intensities of Laser-Induced Fluorescences of Ethylbenzene and Naphthalene Seeded in Gas Flow at Atmospheric Pressure J. Visualization 10-2 197-206
  • [9] Wolfrum R. A.(1992)Acetone: a Tracer for Concentration Measurement in Gaseous Flows by Planar Laser-Induced Fluorescence Exp. Fluids 13 369-376
  • [10] Bryant J. M.(2007)Study of Acetone-OH Simultaneous PLIF for Combustion Diagnostics of Turbulent Flames Trans. JSME Ser.. B. 73–725 350-356
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