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Please use this identifier to cite or link to this item: http://hdl.handle.net/10087/5699

Title: Rotational Temperature Measurement of NO Molecule in a Flame through Laser-Induced Fluorescence Spectrum
Authors: HAYASHIDA, Kazuhiro
SHIRAI, Hiroyuki
AMAGAI, Kenji
ARAI, Masataka
Keywords: Spectroscopic Measurement
Laser
Flame
Laser-Induced Fluorescence
NO
Rotational Temperature
Issue Date: 15-Feb-2002
Publisher: 社団法人日本機械学会
Citation: JSME international journal Ser B Fluids and thermal engineering. 45(1), 201-208 (2002)
Abstract: Rotational temperature of NO molecule in methane/air premixed flame was estimated by a spectral matching method. A tunable narrow band ArF excimer laser was used to excite the D^2Σ^+ ← X^2∏(0,1) band system of NO. Laser beam was introduced in a flame, and the laser-induced fluorescence was resolved into a spectrum by using a spectrograph. On this spectrum, e and δ bands of upper vibrational level of v'=0 were analyzed. In order to use a spectral matching method, profiles of ε and δ band spectra were calculated theoretically in detail with reliable molecular constants and exact equations, and they were modulated by an experimental slit function. Since the profile of band spectrum was determined as a function of a rotational temperature, a rotational temperature could be estimated using the temperature where the profile of every band spectrum obtained theoretically is fitted to that of experimentally obtained. Applying a spectral matching method on the ε(0,3), ε(0,4) and δ(0,2) band of NO, it was obtained that the rotational temperature is about 1000 K. The obtained rotational temperature is almost agreed with the thermocouple temperature.
URI: http://hdl.handle.net/10087/5699
ISSN: 13408054
Appears in Collections:学術雑誌論文

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