1990•TRANSACTIONS OF THE JAPAN SOCIETY OF MECHANICAL ENGINEERS Series BOpen access

Measurements of OH concentration and temperature in diffusion flame by excimer laser-induced fluorescence and Rayleigh scattering.

Masaharu Komiyama, Daisei KEMA, Toshimi TAKAGI

Abstract

OH fluorescence induced by a XeCl excimer laser is detected in a laminar diffusion flame. OH concentration and temperature in the flame are estimated by OH fluorescence and Rayleigh scattering. The results obtained are as follows. (1) The spectrum of OH fluorescence is numerically simulated by rate equations and it predicts the experimental results well. (2) Relative and absolute OH concentrations are estimated by the measured fluorescence and rate equations. (3) Rayleigh scattering is separated from OH fluorescence to measure flame temperature. The measured temperature agrees with that obtained by use of the Rayleigh scattering by Argon ion laser.

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Key concepts: Rayleigh scattering, Laser-induced fluorescence, Excimer, Fluorescence, Diffusion, Analytical Chemistry (journal), Excimer laser, Chemistry