HMD builds ballast-free LNG bunker vessel

Savings on treatment plant and tank coatings have inspired a ballast-free LNG bunker vessel from HMD Savings on treatment plant and tank coatings have inspired a ballast-free LNG bunker vessel from HMD

Hyundai Mipo Dockyard will build the world’s first ballast-free LNG bunkering vessel.

The 7,600m³ vessel was ordered by Bernhard Schulte Shipmanagement in 2016 and is being built to Lloyd’s Register class rules at HMD’s Ulsan yard, to be delivered later this year. The ballast-free design will reduce machinery costs as the ship will not require a ballast water treatment plant under IMO and US Coast Guard regulations. It also removes the need to comply with the Performance Standard for Protective Coatings for ballast tanks and related regulation, enabling maintenance costs savings.

To enable ballast free design, HMD designed a hull form with a deep dead-rise, enabling it to sit lower in the water without ballast, but retaining speed performance. A forward engine room and deckhouse also contribute to ballast-free stability, while a twin propulsion system with azimuth thrusters enables the ship to retain its damage stability and easily control the trim and heel without ballasting. The smaller diameter of propellers fitted to the azimuth thrusters enables the vessel to achieve full immersion in all operational conditions.

LNG will be stored in two independent IMO type C tanks and can be transferred to an LNG-fuelled vessel at the rate of about 1,250m3/h through cryogenic flexible hoses without ballasting or de-ballasting. Natural vaporising gas from the bunkering vessel and the returned boil-off gas from the LNG-fuelled vessel will be compressed up to 220 bar(g), stored in two sets of 40ft containers and used for propulsion and power.

LATEST PRESS RELEASES

S/V BRYANA COMPLETES 30,000 NM WITH VESCONITE

A mid-ocean loss of steerage due to a faulty rudder bearing wasn't a scenario Luke Fisher wanted to ... Read more

Experts Highlight Viable Power and Propulsion Solutions for Next Generation Vessels

Lithium-ion battery expert Dr John Warner is presenting at the NEXT GENERATION Marine Power & Propul... Read more

AtZ add stabilizer repair and maintenance to their comprehensive portfolio of marine engineering solutions

Customers within the leisure cruise, naval and passenger ferry industries, are heavily reliant on co... Read more

Mercator Media upgrades magazines and conferences brands

February 2018 Fareham UK - Mercator Media Ltd, the international, market-leading B2B marine media bu... Read more

P&E 2017 deemed a resounding success

Taking place between the 10th-11th May, the 2017 conference welcomed high calibre speakers, delegate... Read more

Gas Fuelled Ships 2017 highlights long-term viability of LNG

Insights into the future of LNG and other lowflash point fuels offered at The Motorship’s 2017 Confe... Read more

View all