11 September 2012

[110912.EN.SEA] Germanischer Lloyd Sees Cost Savings In Switching To LNG-fuelled Ships


CLASSIFICATION society Germanischer Lloyd (GL) says its preliminary approval of Technolog's IPP-designed range of LNG-fuelled containerships will mean cost savings for shipowners and managers, reports Motorship of Fareham, Hampshire.

"At GL we see the development of LNG as a fuel for shipping as a key part of the industry's drive to curb costs, reduce emissions, and remain the world's most efficient means of transporting goods," said GL's R&D chief Pierre Sames.

"The spread of LNG technology will not only allow the industry to improve its overall environmental footprint, but to remain competitive in an era of rising bunkering costs," Dr Sames said.

GL said the virtual elimination of sulphur and particulate emissions and significant reductions in NOx and CO2 mean that the LNG option should be considered by every shipowner and operator.

Suitable designs are now ready for the market, of which the Technolog Stream range of 3,000-TEU to 5,000-TEU vessels designed for worldwide service is a good example, said the report.

"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," said the report.

The LNG fuel systems were developed jointly with TGE Marine Gas Engineering and include a fixed bunker tank inside the vessel and a 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.

Hull lines have been optimised by HSVA (Hamburgische Schiffbau-Versuchsanstalt) with input 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.

Source : HKSG.

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