Biofuel Blend - B24/B30 Energy Budget
Energy and CO₂ content of a VLSFO-biofuel blend (B24, B30, B100) - basis for tank sizing and CII/EU-MRV reporting.
Blend NCV
39.80MJ/kg
Blend CF
3.005tCO₂/tfuel
Energy content
20GJ
Formula, assumptions, and limits
$$C_F^{blend} = x \cdot C_F^{bio} + (1-x) \cdot C_F^{VLSFO}$$
IMO CII default combustion factor of biofuel = 2.75 (same as natural gas). Life-cycle factor ~ 0.5 typical for waste-oil FAME; 0.2 for advanced biofuels. FuelEU uses LCA.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $x$ | Biofuel mass fraction | - | BDN |
| $C_F$ | Combustion CO₂ factor | tCO₂/tfuel | MEPC.364(79) |
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