Table 3 Properties of soybean biodiesel fuel
From: Numerical simulation of a diesel engine performance powered by soybean biodiesel and diesel fuels
Specification | Units | Test method | EN 14,214 limits | Test results | |
|---|---|---|---|---|---|
min | max | ||||
Typical formula | C18.74H34.51O2 | ||||
Average molecular weight | g/kmol | 291.2 | |||
Lower heating value | MJ/kg | 37.4 | |||
Density at 15 °C | kg/m3 | EN ISO 12185 | – | 900 | 883.4 |
Flash point | oC | EN ISO 3679 | 120 | – | 123 |
Sulfur content | mg/kg | EN ISO 20884 | – | 10 | 1.3 |
Cetane index |  | EN ISO 5165 | 51 | – | 54.1 |
Kinematic Viscosity 40 °C | mm2/s | EN ISO 3104 | 3.5 | 5 | 4.512 |
Cold filter plugging point | oC | EN 116 | – |  + 5 °C (summer) − 15° C (winter) | − 18 |
Water content | mg/kg | EN ISO 12937 | – | 500 | 357 |
Oxidation stability at 110 °C | hours | EN 14,112 | 6 | – | 7.1 |
Acid value | mg KOH/g | EN 14,104 | – | 0.5 | 0.36 |
Iodine value | g lodine/100 g | EN 14,111 | – | 120 | 115 |
Methanol content | wt% | EN 14,110 | – | 0.2 | 0.11 |
Free glycerin | wt% | EN 14,111 | – | 0.02 | 0.01 |
Monoglyceride content | wt% | EN 14,105 | – | 0.8 | 0.5 |
Diglyceride content | wt% | EN 14,105 | 2 | 0.2 | 0.12 |
Triglyceride content | wt% | EN 14,105 | – | 0.2 | 0.16 |