Crude Oil Washing - Programme Sizing
Crude-Oil-Washing programme duration and estimated residue removed per MARPOL Annex I Reg. 33 - single-stage top wash.
Programme duration
3.67h
Est. residue remaining
0.003%
Formula, assumptions, and limits
$$t = \frac{A \cdot q}{n}$$
MARPOL Annex I Reg. 33 requires COW on every cargo tank at specified frequency. Actual residue depends on crude type, tank geometry and wash-pattern strategy.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $A$ | Tank internal area | m² | capacity plan |
| $q$ | Wash time per unit area | s/m² | COW programme |
| $n$ | Active machines per tank | - | loading plan |
Spotted an error in this calculation? . We acknowledge editorial corrections within two working days.