Effect of fuel-air mixture dilution on knock intensity

Effect of fuel-air mixture dilution on knock intensity

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Effect of fuel-air mixture diluted by inert gas on knock intensity was investigated by using a rapid compression and expansion machine.Dilution of fuel-air mixture decreased knock intensity.As the dilution ratio became high, increase in input heating value chocolate chip cookie purse did not affect knock intensity too much although it shortened auto-ignition delay.Knock intensity is assumed here to correlate with the pressure rising rate when the auto-ignition occurs.Knock intensity was shown as a function of the maximum pressure and the maximum temperature which affect the high temperature oxidation reaction rate.