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Spray G - Program. 13:00 Introduction Experimental Activities 13:15 3.1 Injector geometry assessment Yongjin Jung* (KAIST), Peter Hutchins ( Infineum /ESRF) 13:20 3.2 Rate-of-injection Raúl Payri * (CMT ), Scott Parrish (GM),
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Spray G - Program • 13:00 Introduction • Experimental Activities • 13:15 3.1 Injector geometry assessment • Yongjin Jung* (KAIST), Peter Hutchins (Infineum/ESRF) • 13:20 3.2 Rate-of-injection • RaúlPayri* (CMT), Scott Parrish (GM), • 13:30 3.3 Spray Visualization (liquid/vapor penetration & angle) • JulienManin* (SNL), Gilles Bruneaux(IFPEN), Scott Parrish (GM), Luigi Allocca(IM), Josh Lacey (Melbourne) • 14:00 3.4 Drop size measurement (Phase Doppler Interferometry) • Scott Parrish* (GM) • Modeling Activities • 14:15 3.5 Internal flow modeling using ideal geometry • Ron Grover* (GM) • 14:30 3.6 Spray modeling • Noah Van Dam* (UW), Lucchini (Politecnico di Milano), Som (ANL) • 15:00 Discussion Period • 15:30 Break • *Discussion Leader
Spray G – Discussion Period • What’s next for Spray G? • Continued work with the data already acquired • Boundary condition verifications • Qualification of data contributions • ESRF geometric data analysis • More measurements • X-ray PC imaging - moving needle, cavitation, etc • vapor fuel concentration • combustion? • More operating conditions • throttled early injection – flash boiling • unthrottled early injection – still relevant and easy for everybody • small quantity multiple injection?
Spray G – Conditions to Consider Parameter Spray GSpray G2Spray G3 • Fuel Iso-octane Iso-octane Iso-octane • Fuel pressure 20 Mpa 20 Mpa 20 MPa • Fuel temperature 90ᵒ C 90ᵒ C 90ᵒ C • Injector temperature 90ᵒ C 90ᵒ C 90ᵒ C • Ambient temperature 300ᵒ C 20ᵒ C 20ᵒ C • Ambient density 3.5 kg/m30.6 kg/m3 1.12 kg/m3 (Pressure - Nitrogen) (600 kPa) (53 kPa) (100 kPa) • Injected quantity 10 mg 10 mg 10 mg • Number of injections 1 1 1
40 60 Ambient Pressure (kPa) 80 101 120 40 50 60 70 80 90 Injector Included Spray Angle (º) Spray G - Flash Boiling Conditions
40 60 Ambient Pressure (kPa) 80 101 120 40 50 60 70 80 90 Injector Included Spray Angle (º) Spray G - Flash Boiling Conditions