Jan de Nul’s Afonso de Albuquerque is one of six ultra-low emission vessel new builds that explores the treatment of exhaust gases and benefits of biofuel to meet stricter vessel emission regulations.
Jan de Nul’s 3,500m³ trailing suction hopper dredger (TSHD) Afonso de Albuquerque is one of three identical ultra-low emission vessels ordered by the dredging giant. The second and third vessels, Diogo Cão and Tristão da Cunha, were launched in 2018 at the Keppel Nantong shipyard in China, a subsidiary of Keppel Offshore & Marine. The Afonso de Albuquerque was the ﬁrst of the three that has been delivered to Jan de Nul in April, equipped with an exhaust gas treatment system ﬁltering out and virtually eliminating many pollutants from the exhaust gases.
Each of the 3,500m³ dredgers are equipped with three 3512E Caterpillar diesel engines, each of which can generate 1,700kW. A control system automatically starts and stops the sets depending on the power requirement. In total, Jan De Nul Group ordered six such TSHD, ﬁve of which are being built at Keppel: in addition to the three small 3,500m³, the two medium-sized 6,000m³ Sanderus and Ortelius.
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