Thu 19 Jul 2012, 09:36 GMT

Tankers to be fitted with fuel-efficient engines


Energy-efficient engines to be supplied to nine tankers being built for Kuwait Oil Tanker Co.



Wärtsilä has announced that it will supply the main engines for a series of vessels being built for Kuwait Oil Tanker Co. (KOTC), a subsidiary of Kuwait Petroleum Corporation. Four VLCCs (Very Large Crude Oil Carriers), one Aframax tanker and four medium-range tankers are being built at the Daewoo Shipbuilding & Marine Engineering (DSME) shipyard in South Korea.

The VLCCs will be fitted with 7-cylinder Wärtsilä RT-flex 82T engines and a Waste Heat Recovery System, whereby the exhaust gas energy is utilized to generate steam. This steam is used to operate a turbo generator that produces electricity for the ship.

The Aframax vessel will be powered by a Wärtsilä 6-cylinder RT-flex 58T main engine, and the medium-range tankers by a Wärtsilä 7RT-flex50D main engine. All engines will be built by the Engine & Machinery Division of Hyundai Heavy Industries Co., Ltd. (HHI-EMD), which is a Wärtsilä licensee since 1975 and based in South-Korea. The orders were received during the first half of the year.

Wärtsilä's RT-flex common rail engine technology is designed with electronically controlled fuel injection and valve operation. Its benefits include extremely low Specific Fuel Oil Consumption (SFOC) across the entire operation range, and smokeless operation at all running speeds.

"The choice of Wärtsilä RT-flex engines ensures that these new vessels will be both fuel and energy efficient, and that their emissions will be minimized. It is obvious that the Wärtsilä RT-flex82 engine is increasingly becoming the preferred choice for VLCCs worldwide," said Lars Anderson, Vice President Merchant, Wärtsilä Ship Power.

KOTC has considerable experience with Wärtsilä's engine technology. The company already has two of its vessels fitted with Wärtsilä main engines and four vessels fitted with Wärtsilä auxiliary engines.


RINA employee on board vessel. RINA unveils Mermaid propulsion concept to navigate uncertain decarbonisation landscape  

Fuel-agnostic design claims savings of more than 1,000 tonnes per year in some applications.

Adinkerke and Aalter naming ceremony. Exmar names third and fourth dual-fuel ammonia-powered vessels  

Midsize gas carriers Adinkerke and Aalter named at formal ceremony.

Professor Lynn Loo, GCMD. GCMD outlines practical approach to quantity assurance in marine biofuel supply chains  

New report addresses verification of both total fuel volume and renewable content in biofuel transactions.

Steel-cutting ceremony of London Express class vessel. Hapag-Lloyd cuts steel for first vessel of new London Express class  

16,800-TEU LNG dual-fuel vessel is first of 12 newbuildings in the class.

Vessels at sea. DNV report warns regulatory uncertainty complicates fleet investment decisions  

CEO urges greater clarity to provide the confidence needed for long-term investment.

Blue Whale NxtGen Energy battery system. Corvus Energy launches LFP battery system developed with BYD Energy Storage  

Blue Whale NxtGen Power targets tugs, ferries and workboats with high power demand.

Welcome ceremony of Yampu vessel. World’s first battery-powered self-unloading bulk carrier enters service in Australia  

MV Yampu connects South Australia’s limestone trade with a battery-electric propulsion system.

Skipanes vessel. E-methanol-ready ro-ro vessel delivered to Smyril Line  

190-metre vessel is built for year-round North Atlantic operations and designed for future e-methanol conversion.

Belgium flag. Sunoil Biodiesel secures approval to supply biofuels in Belgium  

Dutch biofuel supplier expands its European footprint with Belgian market entry.

Tacoma Maersk naming ceremony. Maersk takes delivery of dual-fuel methanol-capable Tacoma Maersk in China  

9,000-TEU vessel is one of six mid-sized dual-fuel ships joining Maersk's fleet.