Sperry Marine’s deliveries for the 4 ships, that are on order at at WuHu shipyard, China, will embrace its VisionMaster Net bridge, NAVIGAT gyrocompass and NAVIPILOT 4500N autopilot [Image; © SAL Heavy Lift GmbH & Co. KG]
A collection of new-generation heavy elevate ships features a methanol twin gasoline hybrid propulsion plant as a part of German operator SAL Heavy Lift’s dedication to decarbonization. Called the Orca Class, they’re being constructed at China’s Wuhu Shipyard below a joint newbuilding program involving SAL Heavy Lift and associate Jumbo Shipping of the Netherlands.The constructing contracts cowl 4 agency, plus two non-obligatory, ships
“The Orca vessels are setting new standards in global heavy lift shipping. They represent the new benchmark both in terms of their technical capabilities and modern climate-friendly propulsion systems,” says Dr. Martin Harren, Owner and CEO of SAL Heavy Lift and the Harren Group. “The ships will be the most efficient vessels in their class with consumption and emission figures far superior to any existing heavy lift vessel today. As a signatory to the ‘Call to Action for Shipping Decarbonization’, our group has committed to the decarbonization of shipping activities by 2050. I am proud that this newbuilding order shows how we are keeping our promise for significant, concrete action.”
GREEN METHANOL
If inexperienced methanol turns into accessible in key ports as anticipated in the direction of the tip of the last decade, the Jumbo-SAL-Alliance says will probably be in a position to supply its prospects carbon-neutral transport options – an outlined environmental safety purpose that each firms share.
Those prospects embrace Siemens Gamesa Renewable Energy, whose world commodity supervisor – ports & transportation, offshore, Christian Johansen, says: “We are excited to continue and build on our strategic partnership with SAL Heavy Lift with their Orca Class program. We see their ultra-efficient profile and carbon-neutral potential as a perfect fit with our aim of decarbonizing our supply chain. As companies, we share a lot of the same values – and we are happy to embark on this journey together with SAL.”
COMPACT SIZE, HIGH CAPACITY
The 14,600 dwt heavy elevate ships measure 149.9 meters lengthy x 27.2 meters beam. Despite their compact outer dimensions, the vessels have a box-shaped single cargo maintain with the most important dimensions in its class. If the hatch covers, with a capability of 10 tonnes per sq. meter will not be utilized for stowing super-heavy deck cargoes, akin to 3,000 tonne cable carousels, the vessels can accommodate over-height cargo within the maintain and sail with open hatch covers as much as full scantling draft.
Ice class notation 1A, a Polar Code certification and the lowered design temperature of the hull and tools permit the ships to soundly function in chilly situations.
Two 800 tonne Liebherr cranes particularly designed for this ship kind can deal with cargo objects weighting as much as 1,600 tonnes in tandem.
“Despite extremely high crane pedestals of more than 11 meters, the overall crane height and thereby the vessel’s air draft remains at just about 38 meters. This makes it possible for the vessel to pass Kiel Canal and enter strategically important ports worldwide,” explains Sebastian Westphal, CTO at SAL Heavy Lift. “The fully electric cranes are perfect for the vessel’s intelligent energy management and recovery system. This is based on a battery storage system that can be used together with conventional gensets in hybrid mode, or in combination with the vessel’s shore power connection for fully electric port operations.”
WÄRTSILÄ SOLUTIONS
The vessels would be the first methanol succesful ships to make use of a variable pace predominant engine. Their Wärtsilä hybrid propulsion system will function a variable-speed Wärtsilä 32 predominant twin gasoline engine and likewise consists of an power storage system, a PTO/PTI generator and motor, a multidrive converter, and the Wärtsilä Energy Management System for controlling and optimizing the hybrid operations. The power storage system might be primarily based on lithium-titanium-oxide (LTO) batteries, which may deal with greater quantities of deep cycles than regular lithium-ion primarily based programs. The ESS will considerably scale back the gasoline consumption and/or the mandatory measurement of the port’s electrical shore connection throughout crane operations whereas additionally offering gasoline financial savings at sea by lowering Engine Load fluctuations in tough seas.
For every vessel, Wärtsilä can even provide the gearbox, the controllable pitch propeller (CPP), the bow and stern thrusters, air shaft seals, in addition to the sterntube and bearings.
At a service pace of 15 knots the vessels will eat considerably lower than 20 tonnes of gasoline oil per day – just like far smaller-sized and geared MPP vessels. Alternatively, the vessels will be capable to commerce at a sluggish, ultra-efficient pace of 10 knots at 6 tonnes whereas nonetheless with the ability to attain a most pace of 18.5 knot for pressing deliveries – for instance if a wind farm set up vessel is ready for an pressing element supply.
