Page 48: of Maritime Reporter Magazine (May 2021)

Tech Files

Innovative products, technologies and concepts

Bubble Tech Clears the

Schottel

Path for 6.6% Fuel Saving

SYDRIVE-E

Singapore-based Sembcorp Ma- rine chose Schottel’s azimuthal hybrid drive system SYDRIVE-E to power the world’s ? rst lique? ed natural gas (LNG) hybrid tug.

Silverstream Technologies/Shell

Silverstream Technologies’ air lubrica- the hull. The System was successfully retro? t- tion system, the Silverstream System, has ted on the 2010-built LNGC during its October reportedly delivered 6.6% fuel and emissions 2020 planned dry docking at the Sembcorp savings during testing on the Shell-chartered Marine Admiralty Shipyard in Singapore.

Schottel 170,000 cbm LNG carrier Methane Patricia The project was installed within the planned

Camila. dry docking period, and was delivered on

With this ? rst in a series of The Silverstream System is designed to budget. From design through to installation 12 vessels, Sembcorp Marine enable fuel and emissions ef? ciencies by the System was reviewed and approved by will build the world’s ? rst hybrid producing a thin layer of microbubbles along ABS in accordance with their guidance note

LNG-fueled tug ? eet. The vessel the full ? at bottom of the vessel, reducing for Air Lubrication Technology.

is designed by LMG Marin, a frictional resistance between the water and Silverstream-tech.com wholly owned Sembcorp Marine subsidiary, and a leading naval architecture design house in

Bergen, Norway, which provides

Plug-in Hybrid-Electric Fast Craft energy ef? cient solutions. The tug’s future operation pro? le will demand highly variable power ranges. Depending on the desired operating mode and the required propulsion power, the hybrid drive system activates the appropriate power source or both together.

The LNG-fueled main engines and the electrical motors are both

Danfoss Editron coupled to the SYDRIVE system

Danfoss Editron was chosen by Sea Forrest two crew. In hybrid mode, the vessel will be and are designed to operate ef-

Power Solutions to provide the drivetrain able to travel non-stop for 24 hours between ? ciently within their optimal load system powering Singapore’s ? rst plug-in 5-20 knots. Danfoss Editron’s hybrid-electric ranges.

parallel hybrid-electric fast launch vessel. De- drivetrain system comprises two motors, four

Sembcorp Marine’s hybridized sign, development, construction and delivery inverters and an inductor. SFP has developed

Schottel RudderPropellers type involved Penguin International, who built and the vessel’s power management system and

SRP 430 will have a power intake owns the vessel, Durapower Technology and Human Machine Interface, which is inte- capacity of about 2,000 kW each

Bureau Veritas. The 15m vessel will be used grated with and controls Danfoss Editron’s which will be fed by zero emis- to transport personnel to and from Pulau power drive train, the hybrid gearbox, and sions electrical motors and/or

Bukom integrated oil and petrochemicals re- Durapower’s energy storage system. low-emissions LNG main engines. ? nery, with a capacity of 12 passengers and Danfoss.com

Schottel.com 48 Maritime Reporter & Engineering News • May 2021

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