Numerical and Experimental Investigation of Combustion and Knock in a Dual Fuel Gas/Diesel Compression Ignition Engine

Table 1

Engine specification and operation conditions.

Engine	4 strokes
Fuel	Natural gas-diesel oil
B × S	150 mm × 180 mm
CR	11.5 : 1
𝑁	1500 RPM
Gas injection	Starting: 10°AIVO
	Duration: 130°CA
Diesel oil pilot injection	Starting: 34°BTDC
	Duration: 24°CA
Number of nozzle’s holes	8
Nozzle diameter	0.25 mm
Fuel metering	Diesel oil: 37 mg/cycle
	Natural gas: 317.5 mg/cycle
Charged air pressure	1.11 bar
Charged air temperature	45°C
Turbine inlet temperature	585°C
Turbine outlet temperature	491°C
Overall AFR	32.1