Temperature, pressure, and bath gas composition dependence of fluorescence spectra and fluorescence lifetimes of toluene and naphthalene

Faust, Stephan; Tea, Gabrielle; Dreier, Thomas; Schulz, Christof

doi:10.1007/s00340-012-5254-8

Cited by 50 publications

(22 citation statements)

References 43 publications

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“…Therefore, the influence of nitrogen on the fluorescence intensity of toluene and toluene can be neglected in this experiment. Faust et al [24] and Thurber and Hanson [22] have studied the variation trend of the fluorescence intensity of toluene and acetone with the increase of nitrogen pressure in a larger pressure range (100-1,000 kPa), respectively, at room temperature, which are consistent with this experiment. As nitrogen has a negligible effect on toluene and acetone fluorescence signal, it is very suitable as a diluent gas of tracer vapor.…”

Section: Influence Of Stern-volmer Coefficients On Fluorescence Signalsupporting

confidence: 83%

Oxygen Concentration Distribution Measurement of the Nozzle Flow Field by Toluene/Acetone Planar Laser-Induced Fluorescence

Chang

Peng

et al. 2019

Front. Phys.

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Planar laser-induced fluorescence (PLIF) of toluene and acetone is performed for visualization of spatial distribution of oxygen in gas and oxygen mixing region in the nozzle flow field. The principle of the calibration methods of oxygen concentration distribution is expounded in this paper. As the two tracers had different situations on oxygen quenching effect, the ratio of the fluorescence images of the two tracers could be used to measure the oxygen concentration in the mixed area. In this way, the ratio of fluorescence signal intensity of toluene to acetone was found to be linearly related to oxygen concentration. By using this calibration relationship, we can measure the oxygen concentration distribution of the nozzle flow field with an accuracy of 12.6%. It indicates that this measurement method can be applied in a turbulent flow field. The variation trend of oxygen concentration distribution in the nozzle flow field can be analyzed by capturing multiple PLIF images in time sequence, which has the important reference value for the development of the nozzle burner flame.

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Section: Influence Of Stern-volmer Coefficients On Fluorescence Signalsupporting

confidence: 83%

Oxygen Concentration Distribution Measurement of the Nozzle Flow Field by Toluene/Acetone Planar Laser-Induced Fluorescence

Chang

Peng

et al. 2019

Front. Phys.

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“…Strategies that rely on rationing of two signals often reduce or avoid the dependence of the signal of interest on laser fluence. While this works with strategies where the signal linearly depends on the laser fluence, such as two-color laser-induced fluorescence methods [40], it is not applicable to LII because the fluence affects the signal and its decay characteristics in multiple ways. The magnitude of laser attenuation depends on the optical density of the soot cloud, KL, which is linearly proportional to the soot volume fraction along the laser path.…”

Section: Effects Of Laser Attenuationmentioning

confidence: 99%

Sensitivity analysis for soot particle size imaging with laser-induced incandescence at high pressure

et al. 2015

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“…Several PAH, including naphthalene, have already been studied by using UV-VIS absorption spectroscopy [1]. Additionally, PAH such as 1-MN [2][3][4][5][6], 2-MN [4], naphthalene [6][7][8], dimethylnaphthalene [8], anthracene [9], and perylene [10] are applied as laser induced fluorescence (LIF) tracers for mixing studies in gas flows and combustion processes. The LIF technique can be used for the determination of temperature and fuel distribution, thus contributing to the optimization of the combustion process and to the reduction of pollutant emissions.…”

Section: Introductionmentioning

confidence: 99%

UV absorption cross sections of vaporized 1-methylnaphthalene at elevated temperatures

et al. 2020

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In this work, the UV absorption cross sections of the fluorescence tracer 1-methylnaphthalene are determined in the range of 230-330 nm. The experiments are performed in a continuously scavenged gas flow cell, which allows for defined homogeneous conditions regarding temperature, pressure, and tracer/fuel composition. A LSDS (laser driven light source) is used for irradiation, which enables high spectral emission intensities in the UV range studied. For detection, a spectrograph in combination with an intensified camera is applied. Absorption cross sections at temperatures up to 850 K are determined and compared to sparsely available published data. Possible uncertainties caused by the optical setup and the flow cell, respectively, are considered.

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Temperature, pressure, and bath gas composition dependence of fluorescence spectra and fluorescence lifetimes of toluene and naphthalene

Cited by 50 publications

References 43 publications

Oxygen Concentration Distribution Measurement of the Nozzle Flow Field by Toluene/Acetone Planar Laser-Induced Fluorescence

Oxygen Concentration Distribution Measurement of the Nozzle Flow Field by Toluene/Acetone Planar Laser-Induced Fluorescence

Sensitivity analysis for soot particle size imaging with laser-induced incandescence at high pressure

UV absorption cross sections of vaporized 1-methylnaphthalene at elevated temperatures

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