Simultaneous measurements of fuel vapor concentration and temperature in a flash-boiling propane jet using laser-induced gratings

B. Roshani, A. Fluegel, I. Schmitz, D. N. Kozlov, T. Seeger, L. Zigan, J. Kiefer, A. Leipertz

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

To enhance the efficiency of direct injection engines, the understanding of the combustible mixture formation after a liquid fuel spray is injected is crucial; hence, the need is readily apparent for experimental methods that allow determining characteristic parameters such as fuel/air ratio and gas temperature. The paper demonstrates the potential of the laser-induced grating technique to determine simultaneously the local vapor phase fuel concentration and the temperature during the temporal evolution of a direct-injected spray. The precision and the accuracy of the experimental approach and of the applied data treatment procedure were evaluated by using calibration measurements in a constant volume cell under known stationary conditions. The test measurements of fuel vapor concentration and gas temperature were carried out in an injection chamber using a high-pressure swirl injector. Liquid propane as the main component of liquefied petroleum gas was directly injected into the chamber under flash-boiling conditions. Injection and ambient pressure were varied, whereas fuel and ambient temperature remained constant. The measurements were performed inside the fuel jet at different distances from the injector outlet along the axis of propane injection. The results are indicative of small evaporative cooling of the gas in the jet. Copyright (c) 2013 John Wiley Sons, Ltd.
Original languageEnglish
Pages (from-to)1356-1362
Number of pages7
JournalJournal of Raman Spectroscopy
Volume44
Issue number10
Early online date22 May 2013
DOIs
Publication statusPublished - 1 Oct 2013

Fingerprint

Propane
Boiling liquids
Vapors
Lasers
Gases
Temperature
Jet fuel
Liquefied petroleum gas
Direct injection
Liquid fuels
Calibration
Engines
Cooling
Liquids
Air

Keywords

  • four-wave mixing
  • spray
  • aerosol
  • multiparameter measurement
  • evaporative cooling

Cite this

Simultaneous measurements of fuel vapor concentration and temperature in a flash-boiling propane jet using laser-induced gratings. / Roshani, B.; Fluegel, A.; Schmitz, I.; Kozlov, D. N.; Seeger, T.; Zigan, L.; Kiefer, J.; Leipertz, A.

In: Journal of Raman Spectroscopy, Vol. 44, No. 10, 01.10.2013, p. 1356-1362.

Research output: Contribution to journalArticle

Roshani, B, Fluegel, A, Schmitz, I, Kozlov, DN, Seeger, T, Zigan, L, Kiefer, J & Leipertz, A 2013, 'Simultaneous measurements of fuel vapor concentration and temperature in a flash-boiling propane jet using laser-induced gratings', Journal of Raman Spectroscopy, vol. 44, no. 10, pp. 1356-1362. https://doi.org/10.1002/jrs.4315
Roshani, B. ; Fluegel, A. ; Schmitz, I. ; Kozlov, D. N. ; Seeger, T. ; Zigan, L. ; Kiefer, J. ; Leipertz, A. / Simultaneous measurements of fuel vapor concentration and temperature in a flash-boiling propane jet using laser-induced gratings. In: Journal of Raman Spectroscopy. 2013 ; Vol. 44, No. 10. pp. 1356-1362.
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AB - To enhance the efficiency of direct injection engines, the understanding of the combustible mixture formation after a liquid fuel spray is injected is crucial; hence, the need is readily apparent for experimental methods that allow determining characteristic parameters such as fuel/air ratio and gas temperature. The paper demonstrates the potential of the laser-induced grating technique to determine simultaneously the local vapor phase fuel concentration and the temperature during the temporal evolution of a direct-injected spray. The precision and the accuracy of the experimental approach and of the applied data treatment procedure were evaluated by using calibration measurements in a constant volume cell under known stationary conditions. The test measurements of fuel vapor concentration and gas temperature were carried out in an injection chamber using a high-pressure swirl injector. Liquid propane as the main component of liquefied petroleum gas was directly injected into the chamber under flash-boiling conditions. Injection and ambient pressure were varied, whereas fuel and ambient temperature remained constant. The measurements were performed inside the fuel jet at different distances from the injector outlet along the axis of propane injection. The results are indicative of small evaporative cooling of the gas in the jet. Copyright (c) 2013 John Wiley Sons, Ltd.

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