Rolls-Royce has completed the retrofit of Bergen Tankers’ chemical and product tanker, Bergen Viking, converting its propulsion from diesel-electric to LNG-electric.
The conversion programme saw the replacement of four of the ship’s original six diesel generating sets with two Rolls-Royce Bergen C6 generating sets.
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The LNG fuel containment system and control system will benefit from two 155m³ fuel tanks configured for redundant propulsion, along with crossover options on bunkering and supply lines.
Rolls-Royce Commercial Marine resident John Knudsen said: "The Bergen Viking project demonstrates that LNG is an option not just for new vessels but can be successfully retrofitted into existing ships to deliver significant economic and environmental benefits for owners."
According to Rolls-Royce, the LNG engines offer reduced nitrogen oxide (NOx) emissions by about 90% while sulphur oxide (SOx) and particulates emissions are negligible.
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Moreover, it minimises carbon dioxide (CO2) emissions by 25% to 30% more than diesel or heavy-fuel oil powered vessels.
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By GlobalDataBergen Tankers managing director Kjell Olav Haugland said: "We are delighted to take over a renewed and more environmental friendly vessel.
"Our fleet sails along the long and beautiful Norwegian coast, and visit several ports every day, reducing emissions is an obligation we take very seriously."
Delivered in 2007, the 95m-long tanker is part of a total fleet of six vessels owned by Bergen Tankers, which supplies diesel and petrol along the Norwegian coastline in trade for Statoil.
Meanwhile, Rolls-Royce entered into a collaboration agreement with Spanish energy company Gas Natural Fenosa to develop and install a pure-gas Bergen engine aboard the Baleària-operated ferry Abel Matutes.
In addition, the firm signed a contract with Keppel Shipyard to deliver two all-gas engines for power generation on-board a floating liquefaction vessel (FLNGV) owned by Golar LNG.
Image: The 95m-long Bergen Viking vessels owned by Bergen Tankers. Photo: courtesy of Rolls-Royce plc.
