Investigation of the Mixing Process and the Fuel Mass Concentration Fields for a Gasoline Direct-Injection Spray at ECN Spray G Conditions and Variants 2015-01-1902
Within the Engine Combustion Network (ECN) research frame, the mixing process and the fuel mass concentration fields were investigated at spray G conditions and variants with optical diagnostics. Experiments were conducted in a high-temperature high-pressure constant-volume pre-combustion vessel. The target condition, called “Spray G”, which is representative of gasoline direct-injection engine conditions, uses well-defined ambient (573 K, 6 bar, 3.5 kg/m3, O2-free) and injector conditions (200 bar, eight-hole injector, 0.165 mm orifice diameter). Measurements were also conducted at 6 and 9 kg/m3 for temperatures of 700 and 800 K respectively. Two techniques were used to visualize the jet formation: p-difluorobenzene laser induced fluorescence (LIF) imaging and high-repetition-rate schlieren visualization. Images from both methods were compared in terms of jet penetration and size. LIF images were also used to calculate the fuel mass concentration fields across the jet for various measurement conditions.
Citation: Itani, L., Bruneaux, G., Hermant, L., and Schulz, C., "Investigation of the Mixing Process and the Fuel Mass Concentration Fields for a Gasoline Direct-Injection Spray at ECN Spray G Conditions and Variants," SAE Technical Paper 2015-01-1902, 2015, https://doi.org/10.4271/2015-01-1902. Download Citation
Author(s):
Lama M. Itani, Gilles Bruneaux, Laurent Hermant, Christof Schulz
Affiliated:
IFP Energies nouvelles, IVG, University of Duisburg
Pages: 10
Event:
JSAE/SAE 2015 International Powertrains, Fuels & Lubricants Meeting
ISSN:
0148-7191
e-ISSN:
2688-3627
Related Topics:
Imaging and visualization
Gasoline
Optics
Combustion and combustion processes
Lasers
Marine vehicles and equipment
Frames
Research and development
Diagnostics
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