LNG Container Ship Design Gets GL Approval
Germanischer Lloyd presents an Approval in Principle (AiP) certificate to TECHNOLOG for the IPP designed STREAM range of 3,000 TEU to 5000TEU ships.
The design of the STREAM 4200 LNG’s 32.25-metre beam allows passage through the existing Panama Canal locks. A draft of 10.50m to 12.00m means the vessel can operate worldwide, including the Kiel Canal (future dimensions) between the Baltic and North Sea.
The entire vessel design concept is focused around saving energy. A single screw is directly driven by a dual-fuel, two-stroke, 22.9 MW engine developed specifically for LNG applications by MAN. The same dual-fuel system is used for the auxiliary power generators and boilers. Exhaust gas boilers and waste heat recovery equipment are also included in the design.
Hans-Jürgen Voigt, Managing Director of TECHNOLOG, spoke of the potential benefits of the new design at the presentation ceremony: “Looking ahead to 2020, our projections suggest that when we compare the operation of the STREAM against a conventional vessel in an emissions control area (ECA), we arrive at a conservative estimate of fuel cost savings in the region of 30 per cent. With this design we show that it is no longer just a dream to build environmentally friendly vessels, which operate both economically and fulfil regulatory requirements.”
The LNG fuel systems for the STREAM were developed jointly with TGE Marine Gas Engineering and include a fixed bunker tank inside the vessel and a novel portable deck-mounted LNG tank system which can be used to provide extra capacity. For bunkering, the fuel containers will be connected to a docking station currently in development.
The hull lines of the STREAM have been optimised by HSVA (Hamburgische Schiffbau-Versuchsanstalt) experts and the application of tools, methods and expertise from GL’s FutureShip unit to minimise fuel consumption as well as resistance in water and air while maximising cargo capacity and ensuring maximum stability.
TECHNOLOG was founded in 1979 for technical sales and trading as well as technology transfer.
IPP was founded in 1999 to provide engineering services to the maritime industries, in particular initial and basic design.
Photo: Dr Pierre Sames, GL's Head of Research and Rule Development (left) with Hans-Jürgen Voigt, Managing Director of TECHNOLOG at the GL booth at SMM 2012.