Table 1 Properties of CRDI engine test fuels.
Test fuels and their properties | Density (kg/m3) | Kinematic viscosity (mm2/s) | Flash point (°C) | Calorific value (kJ/kg) | Cetane Index | Latent heat of vaporisation (kJ/kg) | Reference |
|---|---|---|---|---|---|---|---|
Measuring instrument used | Density measurement | Redwood viscometer | Closed cup pensky martens apparatus | Bomb calorimeter | Traditional laboratory method | – | Current study |
ASTM test methods | D1298 | D445 | D93 | D240 | D976 | – | |
ASTM D6751 (Biodiesel limit) | 860–900 | 1.9–6 | 130 (min) | – | 47 (min) | – | |
Diesel | 830 | 3.18 | 66 | 42,500 | 51 | 250 | |
CSLB | 856 | 5.13 | 104 | 38,400 | 57 | – | |
CSLB5 | 873 | 3.44 | 71 | 44,420 | 54 | – | |
CSLB10 | 916 | 3.71 | 76 | 46,340 | 57 | – | |
Butanol | 810 | 2.69 | 28 | 33,800 | 23 | 626 | |
Diesel + 2.5% Butanol | 850 | 3.24 | 66 | 43,345 | 51 | – | |
Diesel + 5% Butanol | 871 | 3.31 | 67 | 44,190 | 52 | – | |
Diesel + 10% Butanol | 911 | 3.45 | 69 | 45,880 | 53 | – | |
CSLB5 + 2.5% Butanol | 893 | 3.57 | 72 | 45,265 | 54 | – | |
CSLB5 + 5% Butanol | 914 | 3.60 | 72 | 46,110 | 55 | – | |
CSLB5 + 10% Butanol | 954 | 3.71 | 74 | 47,800 | 56 | – | |
CSLB10 + 2.5% Butanol | 936 | 3.78 | 76 | 47,185 | 58 | – | |
CSLB10 + 5% Butanol | 957 | 3.84 | 77 | 48,030 | 58 | – | |
CSLB10 + 10% Butanol | 972 | 3.91 | 79 | 49,720 | 59 | – | |
Diesel | 830 | 2.5 | 58 | 45,600 | 48 | Singh et al.31 | |
Eucalyptus biodiesel (B100) | 875 | 3.1 | 100 | 44,100 | 55 | – | |
B20 | 868 | 2.9 | 76 | 43,600 | 50 | – | |
B20 + 5% Butanol | 856 | 2.7 | 72 | 42,900 | 48 | – | |
B20 + 10% Butanol | 848 | 2.4 | 69 | 42,410 | 47 | – | |
B20 + 15% Butanol | 840 | 2.2 | 65 | 42,125 | 46 | – | |
Diesel | 842 | 3.35 | – | 45,590 | 49.5 | 270 | EL–Seesy et al.35 |
Raw Jojoba oil | 878 | 24.43 | – | 44,944 | 53 | 380 | |
Butanol | 811 | 2.72 | – | 33,630 | 17 | 584 | |
DBJ5 + 10% Butanol | 855 | 3.62 | – | 44,526 | 50.6 | – | |
DBJ10 + 10% Butanol | 856 | 4.01 | – | 44,820 | 50.8 | – | |
DBJ15 + 10% Butanol | 857 | 4.42 | – | 44,756 | 51.5 | – | |
Diesel | 832 | 2.69 | 57 | 45,750 | – | 260 | Hassan et al.36 |
Castor oil biodiesel (B100) | 925 | 12.41 | 122 | 38,440 | – | 358 | |
Butanol | 809 | 2.62 | 34 | 33,100 | – | 590 | |
D90B10 | 839 | 3.03 | 60 | 43,400 | – | 270 | |
D80B10 + 10% Butanol | 835 | 2.81 | 46 | 42,830 | – | 300 | |
Diesel | 850 | 2.72 | 63 | 43,100 | 51 | – | Pullagura et al.37 |
Sea mango biodiesel (SMB) | 880 | 4.13 | 131 | 40,950 | 55 | – | |
Butanol | 810 | 2.21 | 36 | 34,000 | 25 | – | |
SMB15 | 870 | 3.86 | 120 | 42,400 | 50 | – | |
D75SMB15 + 10% Butanol | 834 | 3.60 | 84 | 40,800 | 52 | – |