Anchor Handling Tug Supply. Outside CII scope - benchmarked on bollard-pull-hour intensity.
Formula
$$ \text{CO}2^\text{year} = \sum_j F_j \cdot C{f,j}, \quad \text{Intensity}_\text{BP} = \frac{\text{CO}2^\text{year} \cdot 1000}{\text{Bollard} \cdot h\text{pull}} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $Bollard$ | Rated bollard pull | t | class certificate |
| $h_\text{pull}$ | Hours in bollard-pull operation | h | operations log |
Sources
- IMCA - offshore vessel operational data.