Hofmann, M.; Kronemayer, H.; Kock, Boris Ferdinand; Jander, H.; Schulz, Christof:
Soot diagnostics at elevated pressure: Laser-induced incandescence and multi-line NO-LIF thermometry
In: Proceedings of the 4th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, ACLDFMC IV / Alwahabi, Zeyad T. (Eds.). - 4th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, ACLDFMC IV, 7 - 9 December 2005, McLarens on the Lake, Australia - Adelaide: University of Adelaide, 2005
2005book article/chapter in Proceedings
Mechanical EngineeringFaculty of Engineering » Maschinenbau und Verfahrenstechnik » Institute for Energy and Materials Processes (EMPI)
Title in English:
Soot diagnostics at elevated pressure: Laser-induced incandescence and multi-line NO-LIF thermometry
Author:
Hofmann, M.;Kronemayer, H.;Kock, Boris FerdinandUDE
LSF ID
48750
Other
connected with university
;Jander, H.;Schulz, ChristofUDE
GND
1148037985
LSF ID
48807
ORCID
0000-0002-6879-4826ORCID iD
Other
connected with university
Language of text:
English
Appears in
Proceedings of the 4th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, ACLDFMC IV
Conference
4th Australian Conference on Laser Diagnostics in Fluid Mechanics and Combustion, ACLDFMC IV, 7 - 9 December 2005, McLarens on the Lake, Australia
Editor:
Alwahabi, Zeyad T.
Place of publication:
Adelaide
Publisher:
University of Adelaide
Year of publication:
2005
Handle
2440/36491
ISBN
0-9757855-2-4

Abstract:

This article presents tools for soot diagnostics at elevated pressure. Investigations on laser-induced incandescence (LII) are shown in a laminar premixed ethylene/air flame at pressures up to 5 bar in a recently constructed high-pressure burner. The LII signal decay was compared to results of a numerical model taking into account the pressure-dependent heat transfer. Required input parameters for the model are the peak particle temperature as well as the gas-phase temperature. The peak particle temperature was measured using two-color LII, the gas-phase temperature was determined with multi-line NO-LIF thermometry. Model results are shown where the pressure-dependence of the LII signal intensity is investigated. It shows that intensities decrease with increasing pressure which has an important impact on the transfer of the calibration of LII for soot volume fraction measurements from atmospheric pressure to high pressure. A practical application of LII in a Diesel engine is shown. Here, particle sizes were obtained from in-cylinder measurements with time-resolved LII.