Reefer Ship CII

CII for conventional reefer ships (specialised refrigerated cargo carriers, not container ships). MEPC.353(78) refrigerated-cargo reference (a=4600, c=0.557). Tighter d1 (0.78) than bulkers - the reefer-cargo trade is homogenous (bananas, citrus, fish).

Ship typeReefer

Ship & voyage

DeadweightDWTModern conventional reefer 8,000–15,000 DWT.Distance / yearnmYear

Fuel

FuelMasst

Attained CII: 16.030g CO₂ / (dwt·nm)

Required CII: 22.372g CO₂ / (dwt·nm)

Rating: A

Major superior performance. No corrective action required.

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

\text{CII}_\text{required} = 4600 \cdot \text{DWT}^{-0.557} \cdot (1 - Z)

Symbol	Meaning	Unit
$DWT$	Deadweight	t
$Z$	Annual reduction	fraction

Source: IMO MEPC.353(78), MEPC.338(76) as amended by MEPC.400(83), and MEPC.354(78)

In short

CII for conventional refrigerated-cargo ships using the MEPC.353(78) refrigerated-cargo reference line.

Learn the theory Specialised Ship Types: Ro-ro, Reefer, Heavy-Lift