Quantitative OH-LIPF measurements in high pressure methane flames

Tony Yuan, Chih Chung Lu, Yu Hsuan Lai

Research output: Contribution to conferencePaperpeer-review


Quantitative analysis of OH concentrations by LIPF and temperature measurements by thermocouple were conducted in laminar premixed CH4/air flames at 1-5 atm. The OH concentrations measured by LIPF for different flames and their calibration curves at different pressures were established. The nearest measuring position was 1 mm downstream of burner surface. The uncertainties in concentration and position measurements were ± 13% and ± 0.5 mm, respectively. The computed OH concentrations were systematically overestimated near the reaction zone. For flames at 1 atm, the overestimation of the OH concentrations was near 95% and more than three-fold and 5-atm flames. The overestimation might be caused by the misinterpretation of the peak flame temperature by given-temperature mode and/or over predicting of the preheating time by the flame simulation. Original is an abstract.

Original languageEnglish
Number of pages1
Publication statusPublished - 2002 Dec 1
Event29th International Symposium on Combustion - Sapporo, Japan
Duration: 2002 Jul 212002 Jul 26


Other29th International Symposium on Combustion

All Science Journal Classification (ASJC) codes

  • Engineering(all)


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