Cement Carrier CII
Self-discharging cement carriers with pneumatic unloading systems. MEPC.337 general_cargo reference applies. Pneumatic discharge adds substantial aux load during port stays - allow for it in the fuel total.
Ship & voyage
Fuel
Attained CII
17.811g CO₂ / (dwt·nm)
Required CII
16.931g CO₂ / (dwt·nm)
Rating
C
Moderate performance. Compliant.
Formula, assumptions, and limits
$$\text{CII}_\text{required} = 31948 \cdot \text{DWT}^{-0.793} \cdot (1-Z)$$
Pneumatic compressor run-time during discharge can double port-call fuel for cement carriers vs dry bulk. Slow-steaming savings are modest compared to bulkers because voyage patterns are short-haul intra-region.
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