Quantitative in-cylinder fuel measurements in a heavy duty diesel engine using structured laser illumination planar imaging (SLIPI)

Johan Sjöholm*, Clément Chartier, Elias Kristensson, Edouard Berrocal, Yann Gallo, Mattias Richter, Öivind Andersson, Marcus Aldén, Bengt Johansson

*Corresponding author for this work

Research output: Contribution to conferencePaperpeer-review

5 Scopus citations

Abstract

Laser-induced fluorescence (LIF) for quantitative fuel concentration measurements in a combustion engine is a challenging task. Measuring close to the walls of the combustion chamber is even more challenging as both the incident laser light and the signal are strongly reflected on the walls of the combustion chamber. By using a new technique called Structured Laser Illumination Planar Imaging (SLIPI) such background effects, as well as unwanted multiply scattered light, can be suppressed allowing for higher measurement accuracy. In this article we demonstrate, for the first time, the feasibility of the SLIPI technique for gas phase LIF and in-cylinder measurements. Results from regular LIF and SLIPI measurements are also compared. The measurements were made on a non-reacting fuel-jet with acetone as a fuel tracer in a heavy duty diesel engine (Scania D12). It is observed that the equivalence ratio measured by SLIPI in the free part of the jet is only two thirds of that measured by regular LIF during the early jet development.

Original languageEnglish (US)
Pages500-505
Number of pages6
StatePublished - Dec 1 2012
Event8th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2012 - Fukuoka, Japan
Duration: Jul 23 2012Jul 26 2012

Other

Other8th International Conference on Modeling and Diagnostics for Advanced Engine Systems, COMODIA 2012
CountryJapan
CityFukuoka
Period07/23/1207/26/12

Keywords

  • Fuel-jet
  • Heavy duty diesel engine
  • Jet-wall interactions
  • Quantitative LIF
  • SLIPI

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Modeling and Simulation

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