A fleet of membrane-type small-scale LNG carriers has been in service for decades, joined since some years by a fleet of mid-scale LNG carriers as well as LNG bunker vessels.

Strong of 60+ years’ experience, GTT proposes new concepts of small and mid-scale LNG carriers & bunker vessels to owners and shipyards.
 

Small & Mid-Scale LNG Carriers & Bunker Vessels


The designs are particularly well adapted for:

  • coastal trade
  • regional distribution
  • harbour trade
  • river trade

For specific constraints such as shallow draft or ballast-water-free requests, GTT membrane technologies offer excellent solutions with highest cargo volumes.

Ships equipped with GTT technologies show the highest thermal performance, maintaining the LNG at the coldest temperature at sea and increasing operators’ competitive advantage.

Bunker vessels
Highlights & Key Advantages
  • All well-known GTT membrane advantages are incorporated, such as the low and guaranteed Boil-Off-Rate.
  • The best ratio of Cargo-volume vs Gross-tonnage leads to economic vessels and excellent manoeuvring performances.
  • Any cargo capacity may be achieved and, in general, all filling levels are obtained without restrictions.
  • Cargo-tank design pressure is normally proposed at 0.7 barg, as per IGC. Higher pressure can be investigated on request.
  • GTT membrane systems are available for any propulsion system.
  • Operational safety is increased in restricted channels & harbours due to more compact design.
  • Full double-hull (bottom, side and deck)
  • Suitable for multigas application

 

GTT Project Assistance

Assistance to owners & operators

  • Project evaluation for ship size & capacity, speed, propulsion,
  • Integrated operating profile requirements,
  • Making full use of the advantages of membrane type LNG carriers.

Assistance to shipbuilders

GTT assists shipbuilders in developing their designs

Assistance to new shipyards

GTT assists newcomers in:

  • Shipyard qualification
  • Design of Cargo-Containment & Cargo Handling Systems
  • Ship design development
  • General arrangement
  • Vessel performance
  • Rules & Regulations
  • Sourcing & makers selection
  • Building methods

 

Some Bunkering Vessels equipped with GTT's Membrane Technology

 

Gas Agility Bunker Vessel

'Gas Agility' LNG Bunkering vessel

18,600 m3

Delivered in April 2020

Construction at Hudong-Zhonghua

Mark III Flex 170 kg/m3

Bunkering rate: 1,600 m3/h

 

Gas Vitality Bunker Vessel

'Gas Vitality' LNG Bunkering vessel

18,600 m3

Delivered in October 2021

Construction at Hudong-Zhonghua

Mark III Flex 170 kg/m3

Bunkering rate: 2,000 m3/h

 

Brassavola bunker vessel'Bassavola' LNG Bunkering vessel

12,000 m3

Delivered end 2022

Construction at Sembcorp Marine

Mark III Flex 170 kg/m3

Bunkering rate: 2,000 m3/h