Crude Oil Washing - Programme Sizing

Crude-Oil-Washing programme duration and estimated residue removed per MARPOL Annex I Reg. 33 - single-stage top wash.

COWCrudeMARPOL I

Tank internal aream²Crude flow per machinem³/hMachines per tankunitsWash duration per m²s/m²

Programme duration: 3.67h

Est. residue remaining: 0.003%

Changing the inputs requires JavaScript. The calculator above shows its default inputs and result. The formula, symbols, and regulatory sources are shown in the Formula section below.

Formula, assumptions, and limits

t = \frac{A \cdot q}{n}

Symbol	Meaning	Unit
$A$	Tank internal area	m²
$q$	Wash time per unit area	s/m²
$n$	Active machines per tank

Source: MARPOL Annex I Reg. 33; IMO COW Operations Manual

In short

Crude-Oil-Washing programme duration and estimated residue removed per MARPOL Annex I Reg.

Learn the theory Marine Tank Cleaning and Crude Oil Washing