Erscheint 12 Ausgaben pro Jahr
ISSN Druckformat: 1044-5110
ISSN Online: 1936-2684
Indexed in
LOCALLY RESOLVED INVESTIGATION OF THE VAPORIZATION OF GDI SPRAYS APPLYING DIFFERENT LASER TECHNIQUES
ABSTRAKT
As an example for a highly developed technical spray system, the vaporization of isooctane fuel sprays of a gasoline direct-injection (GDI) multihole injector has been investigated in a heated injection chamber for different injection pressures and fuel temperatures ranging from 4 to 10 MPa and from 323 to 383 K, respectively. In this investigation, to the best of our knowledge, for the first time, pure rotational coherent anti-Stokes Raman spectroscopy (RCARS) has been applied to the study of vaporizing sprays in combination with other laser techniques. Gas-phase temperatures inside the sprays have been determined with high spatial and temporal resolution by RCARS. Droplet sizes and number densities have been measured using phase-Doppler anemometry, and the correlation of these results with two-dimensional laser sheet Mie scattering images allows an improved interpretation of the spray vaporization process. In particular, it was found that a vaporization barrier exists in the spray front of the GDI sprays due to the large amount of droplets available at these locations, which leads to nearly the same vaporization-dependent temperature drop of about 30 K for all pressures and fuel temperatures studied.
-
Kiefer J., Kozlov D. N., Seeger T., Leipertz A., Local fuel concentration measurements for mixture formation diagnostics using diffraction by laser-induced gratings in comparison to spontaneous Raman scattering, Journal of Raman Spectroscopy, 39, 6, 2008. Crossref
-
Fansler Todd D, Drake Michael C, Gajdeczko Boguslaw, Düwel Isabell, Koban Wieland, Zimmermann Frank P, Schulz Christof, Quantitative liquid and vapor distribution measurements in evaporating fuel sprays using laser-induced exciplex fluorescence, Measurement Science and Technology, 20, 12, 2009. Crossref
-
Leipertz Alfred, Pfadler Sebastian, Schießl Robert, An Overview of Combustion Diagnostics, in Handbook of Combustion, 2010. Crossref
-
Hsieh Wei-Dong, Lu Jian-Han, Chen Rong-Horng, Lin Ta-Hui, Deposit formation characteristics of gasoline spray in a stagnation-point flame, Combustion and Flame, 156, 10, 2009. Crossref
-
Kiefer Johannes, Ewart Paul, Laser diagnostics and minor species detection in combustion using resonant four-wave mixing, Progress in Energy and Combustion Science, 37, 5, 2011. Crossref
-
Hildenbrand S., Staudacher S., Brüggemann D., Beyrau F., Weikl M.C., Seeger T., Leipertz A., Numerical and experimental study of the vaporization cooling in gasoline direct injection sprays, Proceedings of the Combustion Institute, 31, 2, 2007. Crossref
-
Serras-Pereira J., Aleiferis P. G., Richardson D., An Analysis of the Combustion Behavior of Ethanol, Butanol,Iso-Octane, Gasoline, and Methane in a Direct-Injection Spark-Ignition Research Engine, Combustion Science and Technology, 185, 3, 2013. Crossref
-
Trost J., Zigan L., Leipertz A., Quantitative vapor temperature imaging in DISI-sprays at elevated pressures and temperatures using two-line excitation laser-induced fluorescence, Proceedings of the Combustion Institute, 34, 2, 2013. Crossref
-
Aleiferis P.G., Serras-Pereira J., Richardson D., Characterisation of flame development with ethanol, butanol, iso-octane, gasoline and methane in a direct-injection spark-ignition engine, Fuel, 109, 2013. Crossref
-
Fansler Todd D, Parrish Scott E, Spray measurement technology: a review, Measurement Science and Technology, 26, 1, 2015. Crossref
-
Serras-Pereira J., Aleiferis P. G., Richardson D., Wallace S., Characteristics of Ethanol, Butanol, Iso-Octane and Gasoline Sprays and Combustion from a Multi-Hole Injector in a DISI Engine, SAE International Journal of Fuels and Lubricants, 1, 1, 2008. Crossref
-
Serras-Pereira J., Aleiferis P.G., Richardson D., Wallace S., Spray Development, Flow Interactions and Wall Impingement in a Direct-Injection Spark-Ignition Engine, SAE Technical Paper Series, 1, 2007. Crossref
-
Weikl Markus C., Beyrau Frank, Kiefer Johannes, Seeger Thomas, Leipertz Alfred, Combined coherent anti-Stokes Raman spectroscopy and linear Raman spectroscopy for simultaneous temperature and multiple species measurements, Optics Letters, 31, 12, 2006. Crossref
-
Thomas Levi M., Lowe Albyn, Satija Aman, Masri Assaad R., Lucht Robert P., Five kHz thermometry in turbulent spray flames using chirped-probe pulse femtosecond CARS, part I: Processing and interference analysis, Combustion and Flame, 200, 2019. Crossref
-
Richardson Daniel R., Kearney Sean P., Guildenbecher Daniel R., Three-beam rotational coherent anti-Stokes Raman spectroscopy thermometry in scattering environments, Applied Optics, 59, 27, 2020. Crossref
-
Zigan Lars, Schmitz Ingo, Flügel Alexandre, Knorsch Tobias, Wensing Michael, Leipertz Alfred, Effect of Fuel Properties on Spray Breakup and Evaporation Studied for a Multihole Direct Injection Spark Ignition Injector, Energy & Fuels, 24, 8, 2010. Crossref
-
Zigan L., Schmitz I., Flügel A., Wensing M., Leipertz A., Structure of evaporating single- and multicomponent fuel sprays for 2nd generation gasoline direct injection, Fuel, 90, 1, 2011. Crossref