TY - JOUR

T1 - Temperature measurements in a Bunsen flame by planar laser-induced fluorescence

AU - Tolstoguzov, R. V.

N1 - Funding Information: This work was supported by the Ministry of Science and Higher Education of the Russian Federation. Unique project identifier: RFMEFI58318X0035. Publisher Copyright: © Published under licence by IOP Publishing Ltd. Copyright: Copyright 2020 Elsevier B.V., All rights reserved.

PY - 2020/12/3

Y1 - 2020/12/3

N2 - The article presents the results of measuring the temperature distribution parameters based on planar laser-induced fluorescence (PLIF) of the hydroxyl radical (OH) upon excitation of the transition (1-0) of the A2∑+ - X2∏ system. Thermometry is based on registration of the ratio of the radiation intensity of the transition (2-0) and transitions (0-0), (1-1). For the most frequent excitation lines Q2(7), Q1(8), R1(14), P1(2), numerical simulation of fluorescence spectra was performed using the LASKIN software. In this work, the measurement procedure for the laminar pre-mixed Bunsen flame of a methane-air mixture was experimentally worked out. It was shown that the maximum sensitivity of the signal to temperature changes is achieved when the Q1(8) transition is excited. It was found that quenching of fluorescence has a negligible effect on the accuracy of temperature measurement.

AB - The article presents the results of measuring the temperature distribution parameters based on planar laser-induced fluorescence (PLIF) of the hydroxyl radical (OH) upon excitation of the transition (1-0) of the A2∑+ - X2∏ system. Thermometry is based on registration of the ratio of the radiation intensity of the transition (2-0) and transitions (0-0), (1-1). For the most frequent excitation lines Q2(7), Q1(8), R1(14), P1(2), numerical simulation of fluorescence spectra was performed using the LASKIN software. In this work, the measurement procedure for the laminar pre-mixed Bunsen flame of a methane-air mixture was experimentally worked out. It was shown that the maximum sensitivity of the signal to temperature changes is achieved when the Q1(8) transition is excited. It was found that quenching of fluorescence has a negligible effect on the accuracy of temperature measurement.

UR - http://www.scopus.com/inward/record.url?scp=85097346825&partnerID=8YFLogxK

U2 - 10.1088/1742-6596/1677/1/012045

DO - 10.1088/1742-6596/1677/1/012045

M3 - Conference article

AN - SCOPUS:85097346825

VL - 1677

JO - Journal of Physics: Conference Series

JF - Journal of Physics: Conference Series

SN - 1742-6588

IS - 1

M1 - 012045

T2 - 36th Siberian Thermophysical Seminar, STS 2020

Y2 - 5 October 2020 through 7 October 2020

ER -