Application of linear Raman spectroscopy for the determination of acetone decomposition

  • Acetone (CH3)2CO is a common tracer for laser-induced fluorescence (LIF) to investigate mixture formation processes and temperature fields in combustion applications. Since the fluorescence signal is a function of temperature and pressure, calibration measurements in high pressure and high temperature cells are necessary. However, there is a lack of reliable data of tracer stability at these harsh conditions for technical application. A new method based on the effect of spontaneous Raman scattering is proposed to analyze the thermal stability of the tracer directly in the LIF calibration cell. This is done by analyzing the gas composition regarding educts and products of the reaction. First Acetone (CH3)2CO is a common tracer for laser-induced fluorescence (LIF) to investigate mixture formation processes and temperature fields in combustion applications. Since the fluorescence signal is a function of temperature and pressure, calibration measurements in high pressure and high temperature cells are necessary. However, there is a lack of reliable data of tracer stability at these harsh conditions for technical application. A new method based on the effect of spontaneous Raman scattering is proposed to analyze the thermal stability of the tracer directly in the LIF calibration cell. This is done by analyzing the gas composition regarding educts and products of the reaction. First measurements at IC engine relevant conditions up to 750 K and 30 bar are presented.show moreshow less

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Metadaten
Author:Simone Christine Eichmann, Johannes Trost, Thomas Seeger, Lars Zigan, Alfred Leipertz
URN:urn:nbn:de:bvb:29-opus-31323
Document Type:Article
Language:English
Date of Publication (online):2012/03/22
Publishing Institution:Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU)
Release Date:2012/03/22
SWD-Keyword:-
Original publication:Optics Express 19.12 (2011): S. 11052-11058. 22.03.2012 <http://www.opticsinfobase.org/oe/abstract.cfm?uri=oe-19-12-11052>
Institutes:Technische Fakultät / Technische Fakultät -ohne weitere Spezifikation-
Dewey Decimal Classification:6 Technik, Medizin, angewandte Wissenschaften / 62 Ingenieurwissenschaften / 620 Ingenieurwissenschaften und zugeordnete Tätigkeiten
Collections:Universität Erlangen-Nürnberg / Von der FAU geförderte Open Access Artikel / Von der FAU geförderte Open Access Artikel 2011

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