Service life of a sacrificial anode (Al-In or Zn) from mass, capacity, and protection current demand - bare-anode lifetime before replacement.
Formula
$$ t = \frac{m \cdot C \cdot u}{I} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $m$ | Anode mass | kg | anode certificate |
| $C$ | Anode capacity | Ah/kg | DNV-RP-B401 |
| $u$ | Utilisation factor | - | DNV-RP-B401 |
Sources
- DNV-RP-B401.