Paragraph 36 Default values for emission factorsF1
The default values, as contained in Table C2 below sub-paragraph (5), for emission factors for fuels and emission sources used on board the ship must be applied for the purpose of this Schedule.
In Table C2—
“TBM” stands for “to be measured”;
“N/A” stands for “not available”;
“—” means “not applicable”.
Where an entry in Table C2 indicates either TBM or N/A, the highest default value of the fuel class in the same column must be used. Where, for a particular fuel class, all entries in the same column indicate either TBM or N/A, the default value of the least favourable fossil fuel type must be used. This rule does not apply to column 6 where TBM or N/A refers to non-available values for the emission source.
For non-fossil fuels not listed in Table C2, the maritime operator must determine the emission factors in accordance with Part 9.
Where there is fuel blending, each fuel must be considered separately.
Table C2
Default emission factors
| 1 | 2 | 3 | 4 | 5 | 6 |
|---|---|---|---|---|---|
| Fuel class | Type of fuel | EFCO2 | EFCH4 | EFN2O | C j as % of the mass of the fuel used by the emission source |
| Fossil | HFO ISO 8217 Grades RME to RMK | 3.114 | 0.00005 | 0.00018 | — |
LFO ISO 8217 Grades RMA to RMD | 3.151 | 0.00005 | 0.00018 | — | |
MDO MGO ISO 8217 Grades DMX to DMB | 3.206 | 0.00005 | 0.00018 | — | |
| LNG | 2.750 | 0 | 0.00011 | 3.1 for LNG Otto (dual fuel medium speed) 1.7 for LNG Otto (dual fuel slow speed) 0.2 for LNG Diesel (dual fuel slow speed) 2.6 for Lean-Burn Spark-Ignited (LBSI) | |
| LPG (Butane) | 3.03 | TBM | TBM | N/A | |
| LPG (Propane) | 3.00 | TBM | TBM | N/A | |
| H 2 (fossil) | 0 | 0 | — for fuel cells TBM for Internal Combustion Engine (ICE) | — | |
| NH 3 (fossil) | 0 | N/A | TBM | N/A | |
| Methanol (fossil) | 1.375 | TBM | TBM | — | |
| Biofuels | Ethanol | 1.913 | TBM | TBM | — |
| Bio-diesel | 2.834 | TBM | TBM | — | |
| Hydrotreated Vegetable Oil (HVO) | 3.115 | 0.00005 | 0.00018 | — | |
Liquified Bio-methane as transport fuel (Bio-LNG) | 2.750 | 0 | 0.00011 | 3.1 for LNG Otto (dual fuel medium speed) 1.7 for LNG Otto (dual fuel slow speed) 0.2 for LNG Diesel (dual fuel slow speed) 2.6 for Lean-Burn Spark-Ignited (LBSI) | |
| Bio-methanol | 1.375 | TBM | TBM | — | |
| Other | 3.115 | 0.00005 | 0.00018 | — | |
| Bio-H 2 | 0 | 0 | 0 for fuel cells TBM for ICE | — | |
| Renewable Fuels of Non-Biological Origin (RFNBO) – e-fuels | e-diesel | 3.206 | 0.00005 | 0.00018 | — |
| e-methanol | 1.375 | TBM | TBM | — | |
| e-LNG | 2.750 | 0 | 0.00011 | 3.1 for LNG Otto (dual fuel medium speed) 1.7 for LNG Otto (dual fuel slow speed) 0.2 for LNG diesel (dual fuel slow speed) 2.6 for Lean-Burn Spark-Ignited (LBSI) | |
| e-H 2 | 0 | 0 | 0 for fuel cells TBM for ICE | — | |
| e-NH 3 | 0 | N/A | TBM | N/A | |
| e-LPG | N/A | N/A | N/A | N/A | |
| e-DME | N/A | N/A | N/A | — | |
Notes Column 1 identifies the class of the fuels. Column 2 identifies the name of the relevant types of fuel for each class. Column 3 contains the emission factor EF for carbon dioxide in gCO2/gfuel. Column 4 contains the emission factor EF for methane in gCH4/gfuel. Column 5 contains the emission factor EF for nitrous oxide in gN2O/gfuel. Column 6 identifies the part of the fuel lost as fugitive and slipped emissions (Cj) measured as % of mass of fuel used by the specific emission source. For fuels such as LNG for which fugitive and slipped emissions exist, the amount of fugitive and slipped emissions as presented in the table is expressed in % of the mass of fuel used. The values of Cj in the table are calculated at 50% of the full engine load. | |||||