Application of the tracer combination TEA/acetone for multi-parameter laser-induced fluorescence measurements in IC engines with exhaust gas recirculation

Journal article


Publication Details

Author(s): Will S, Leipertz A, Lind S, Trost J, Zigan L
Journal: Proceedings of the Combustion Institute
Publisher: Elsevier
Publication year: 2015
Volume: 35
Pages range: 3783-3791
ISSN: 1540-7489
Language: English


Abstract


The present study introduces an advanced measurement technique for multi-parameter imaging in optically accessible IC engines which is based on two planar laser-induced fluorescence (PLIF) techniques. A LIF tracer mixture consisting of triethylamine (TEA) and acetone is used to investigate the simultaneous determination of air/fuel-ratio, temperature and exhaust gas/air concentration in a direct-injection sparkignition (DISI) engine with exhaust gas recirculation (EGR). The approach is based on applying a twowavelength excitation scheme of acetone for temperature and concentration measurement and employing single-wavelength excitation of TEA for the determination of AFR utilizing the effect of oxygen quenching. At first the spectral properties of the tracer mixture are studied to show the separability of the fluorescence signals of both tracers and to identify possible tracer interactions. For calibration and IC engine measurements the focus is put on the tracer acetone for the determination of temperature and air concentration. Fluorescence calibration at IC engine conditions is conducted with pure acetone and with an acetone/TEA mixture to visualize possible interactions. The tracer mixture is then applied in an optically accessible IC engine for temperature determination, which is compared with results of the commonly used successive application of the two individual techniques. The results suggest the suitability of this measurement technique for the simultaneous determination of air/fuel-ratio, air concentration and temperature in combustion devices like IC engines, which helps in the optimization of mixture formation and the subsequent processes such as ignition and pollutant formation. (C) 2014 The Combustion Institute. Published by Elsevier Inc. All rights reserved.



FAU Authors / FAU Editors

Leipertz, Alfred Prof. Dr.-Ing.
Lehrstuhl für Technische Thermodynamik
Lind, Susanne
Lehrstuhl für Technische Thermodynamik
Trost, Johannes
Lehrstuhl für Technische Thermodynamik
Will, Stefan Prof. Dr.-Ing.
Lehrstuhl für Technische Thermodynamik
Zigan, Lars PD Dr. habil.
Lehrstuhl für Technische Thermodynamik


How to cite

APA:
Will, S., Leipertz, A., Lind, S., Trost, J., & Zigan, L. (2015). Application of the tracer combination TEA/acetone for multi-parameter laser-induced fluorescence measurements in IC engines with exhaust gas recirculation. Proceedings of the Combustion Institute, 35, 3783-3791. https://dx.doi.org/10.1016/j.proci.2014.06.144

MLA:
Will, Stefan, et al. "Application of the tracer combination TEA/acetone for multi-parameter laser-induced fluorescence measurements in IC engines with exhaust gas recirculation." Proceedings of the Combustion Institute 35 (2015): 3783-3791.

BibTeX: 

Last updated on 2018-08-08 at 18:09