Effect of Injection Pressure

High-Speed Schlieren Movies of Diesel Sprays
ParameterLow Pressure InjectionHigh Pressure Injection
Ambient O2 [%]2121
Ambient Temperature [K]10001000
Ambient Density [kg/m3]2828
ΔPinj [MPa]71136
Orifice Diameter [mm]0.2000.200

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Fuel is #2 diesel fuel. Injector tip to wall is 109 mm.

The spray penetration rate increases with increasing injection pressure.