Determination of the Gas-Phase Temperature in the Vaporizing Spray of a GDI-Injector Using Pure Rotational CARS 2004-01-1350
Detailed experimental investigation of fuel sprays are of utmost importance for the development of appropriate injection systems for gasoline direct injection (GDI) engines. A number of laser based techniques have been developed to study the spray formation. The temperature of the gas phase surrounding the fuel droplets was not accessible up to now. In this work for the first time, to the best of our knowledge, gas-phase temperatures were measured within the vaporizing spray of a high pressure GDI injector using pure rotational coherent anti-Stokes Raman spectroscopy (CARS). Results from an isooctane fuel spray of a multi-hole injector in a heated injection chamber are presented with the probe volume located at a distance of 70mm downstream the injector nozzle in the centre of the spray cone.
Citation: Beyrau, F., Bräuer, A., Seeger, T., and Leipertz, A., "Determination of the Gas-Phase Temperature in the Vaporizing Spray of a GDI-Injector Using Pure Rotational CARS," SAE Technical Paper 2004-01-1350, 2004, https://doi.org/10.4271/2004-01-1350. Download Citation
Frank Beyrau, Andreas Bräuer, Thomas Seeger, Alfred Leipertz
Lehrstuhl für Technische Thermodynamik (LTT), Friedrich-Alexander Universität Erlangen-Nürnberg