Hanwha Ocean’s dual-fuel LNG carrier design gets DNV nod

South Korean shipbuilder Hanwha Ocean has received classification society DNV’s approval for its dual-fuel LNG carrier design.

PHOTO: Hanwha Ocean’s chief operating officer Jong Seo Kim (fourth from left) and DNV’s Korea and Japan regional manager Vidar Dolonen (fourth from right) at the approval ceremony. DNV

The 270,000-cbm LNG carrier will be equipped with Swiss marine engine maker WinGD’s dual-fuel two-stroke marine engine called 'X-DF'. The dual-fuel engine will be able to run on both LNG and conventional marine fuel.

The dual-fuel engine combined with a re-liquification system will significantly improve the carbon intensity indicator (CII) rating, DNV claims. The system reliquefies surplus boil-off gas, returning it as LNG to the cargo tank.

CII is a measure of how efficiently a ship transports goods or passengers. It is expressed in grams of CO2 emitted per mt of cargo and nautical mile. The ship is then rated every year from A to E (A being the highest). The rating criteria will become stricter by 2030.

The design also features five cargo tanks to minimise sloshing pressure, which is exerted by any motion of the free liquid surface inside its container.

“This innovative design signifies a ground-breaking achievement, pushing the boundaries in size and technological advancement,” DNV’s Korea and Japan regional manager Vidar Dolonen says.

By Tuhin Roy

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