Table 1 Physical properties of biodiesel obtained from blending biodiesel of P. commune NRC2016 as compared with standard diesel ASTM, standard biodiesel ASTM, and ASTM D975 (standard biodiesel for B5)
Physical properties | Test method ASTM | P. commune NRC 2016 biodiesel B5 | Standard diesel ASTM | Standard biodiesel ASTM | ASTM D975 for B5 |
|---|---|---|---|---|---|
Fuel composition | – | Mix | C10-C21 HC | C12-C22 FAME | Mix |
Density (g/ml at 20 °C) | D1298 | 0.83 | 0.85 | 0.87 to 0.90 | 0.85 |
Kin. viscosity at 40 °C, (mm2/s) | D445 | 2.05 | 1.30 to 4.10 | 1.90 to 6.00 | 1.90 to 4.10 |
Flash point (°C) | D93 | 77.00 | 60.00 to 80.00 | 100.00 to 170.00 | 60.00 to 80.00 |
Cloud point (°C) | D2500 | − 1.50 | − 15.00 to − 5.00 | − 3.00 to − 12.00 | − 35.00 to 5.00 |
Pour point (°C) | D97 | − 1.70 | −20.00 to −6.00 | − 15.00 to 10.00 | − 35.00 to − 15.00 |
Iodine value (gI2/100 g)) | D5768 | 42.30 | – | < 25.00 | – |
Cetane no. (min) | D613 | 47.86 | 40.00 | < 47.00 | 40.00 to 55.00 |
Acid value (mg/g) | D664 | 2.14 | 0.03 | 0.80 max | – |