Sacrificial Anode Mass
Anode mass required to deliver a given current over an intended life, using the Faraday-style relation M = I·T / (u·ε).
Anode mass required
624.4kg
Formula, assumptions, and limits
8766 h/year (365.25 × 24). u = theoretical Ah/kg of anode material; ε = utilisation efficiency (0.90 aluminium, 0.90 zinc, 0.50 magnesium). Distribute mass across multiple anodes to get even current distribution.
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| Required protective current | A | CP calc | |
| Design life in hours | h | lifeYears × 8766 | |
| Theoretical capacity | Ah/kg | material property | |
| Utilisation efficiency | - | material + design |