world's first LNG tug takes to the water

摘要

In October 2013 the Sanmar shipyard in Tuzla, Turkey completed the first of two shiphandling/escort tugs for the Norwegian tug owners Bukser og Bergings AS (B&B). Named Borgoy and Bokn, they are the world's first tugs to be fuelled by Liquid Natural Gas (LNC) and will be operated at the Karste gas terminal in Norway, under contract to Statoil. The tugs were designed by B&B with the assistance of Marine Design AS in Norway and built by Sanmar. Two Rolls-Royce Bergen C26:33L6PG, spark ignition, lean-burn engines fuelled entirely by LNC, develop a combined output of 3,410kW (approximately 4,574bhp) at 1.000rpm. Using environmentally friendly LNC eliminates sulphur emissions, brings particulate matter close to zero and reduces the discharge of CO_2 and NO_x by 26 and 80-90 per cent respectively.