Effect Analysis on the Performance Enhancement and Emission Reduction of Diesel Engine Fueled with Biodiesel Fuel Based on an Improved Model

Table 3

Physical properties of fuel.

Item	Rapeseed oil methyl ester
Oxygen content (%m/m)	10.7
Viscosity at 40°C (mm·s^-2)	4.56
Cetane number (-)	53.88
Lower calorific value (MJ/kg)	39.53
Density at 15°C (kg·m^-3)	882
Saturation (%)	4.45
Methyl linoleate	22.27
Methyl linolenate	8.11
Methyl stearate	0.87
Methyl palmitate	3.57