Formula
$$ m_{\text{NH}3} = \frac{P \cdot h \cdot S\text{NH3}}{10^6} $$
Symbol legend
| Symbol | Meaning | Unit | Source |
|---|---|---|---|
| $m_{\text{NH}_3}$ | Annual ammonia slip mass | t | result |
| $P$ | Engine power | kW | operating data |
| $h$ | Annual hours | h | operating data |
| $S_\text{NH3}$ | NH₃ slip rate | g/kWh | ~1.5 for early 2-stroke |
Ammonia is acutely toxic (IDLH 300 ppm). N₂O co-product handled separately.
Sources
- IMO CCC Sub-Committee - ammonia fuel safety.