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Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF
Wu Y(武毅); Yu XL(余西龙); Li F(李飞); Frédéric Grisch
Source PublicationMeasurement Science and Technology
2017-12
Volume29Issue:1Pages:1-10
ISSN0957-0233
Abstract

The effects of optical diagnostic techniques on the accuracy of laminar flame speed measured from Bunsen flames were investigated. Laminar flame speed measurements were conducted for different fuel/air mixtures including CH4/air, acetone/air and kerosene (Jet A-1)/air in applying different optical diagnostic techniques, i.e. OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF. It is found that the OH* chemiluminescence imaging technique cannot directly derive the location of the outer edge of the fresh gases and it is necessary to correct the position of the OH* peak to guarantee the accuracy of the measurements. OH-PLIF and acetone/kerosene-PLIF respectively are able to measure the disappearance of the fresh gas contour and the appearance of the reaction zone. It shows that the aromatic-PLIF technique gives similar laminar flame speed values when compared with those obtained from corrected OH* chemiluminescence images. However, discrepancies were observed between the OH-PLIF and the aromatic-PLIF techniques, in that OH-PLIF slightly underestimates laminar flame speeds by up to 5%. The difference between the flame contours obtained from different optical techniques are further analysed and illustrated with 1D flame structure simulation using detailed kinetic mechanisms.

KeywordOH* chemiluminescence OH-PLIF acetone-PLIF kerosene-PLIF laminar flame speed
DOI10.1088/1361-6501/aa92d7
URL查看原文
Indexed BySCI ; EI
Language英语
WOS IDWOS:000417988300001
WOS KeywordBURNING VELOCITY ; ELEVATED-TEMPERATURES ; MIXTURES ; COMBUSTION ; PRESSURE ; FLUORESCENCE ; HYDROCARBONS ; METHANE/AIR ; IGNITION ; DILUTION
WOS Research AreaEngineering, Multidisciplinary ; Instruments & Instrumentation
WOS SubjectEngineering ; Instruments & Instrumentation
DepartmentLHD高温气流激光诊断
Classification二类
Ranking1
Citation statistics
Document Type期刊论文
Identifierhttp://dspace.imech.ac.cn/handle/311007/72205
Collection高温气体动力学国家重点实验室
Recommended Citation
GB/T 7714
Wu Y,Yu XL,Li F,et al. Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF[J]. Measurement Science and Technology,2017,29(1):1-10.
APA Wu Y,Yu XL,Li F,&Frédéric Grisch.(2017).Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF.Measurement Science and Technology,29(1),1-10.
MLA Wu Y,et al."Effects of optical diagnostic techniques on the accuracy of laminar flame speeds measured from Bunsen flames: OH* chemiluminescence, OH-PLIF and acetone/kerosene-PLIF".Measurement Science and Technology 29.1(2017):1-10.
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