Dynagas, the liquefied natural gas (LNG) shipping arm of the George Prokopiou shipping enterprises, has taken delivery of Arctic Aurora, the second of two ice-class membrane LNG tankers, during a ceremony at Hyundai Heavy Industry (HHI) Ulsan shipyard, Korea.
The first, Yenisei River, was delivered a day before the Aurora.
The 155,000 cbm (cubic metres) ships are fitted with GTT Mk III containment systems. Propulsion for the ships is provided by a duel-fuel diesel generator engine system. Four Wärtsilä-Hyundai diesel engines in each ship, fuelled either by gas or fuel oil, will power two propulsion motors driving a single fixed pitch propeller. Registered in the Marshall Islands, the ships will operate on charter to Gazprom and Statoil.
The lead ships have been classed by Lloyd’s Register and incorporate advanced design, containment and operational features as well as the ability to cope with the harsh operating environment of the Arctic and cold places.
Automated Bonding System
Jose Navarro, Gas Technology Principal Specialist at Lloyd’s Register: 'A key achievement was implementing a fully automated bonding system for the cargo containment system’s secondary barrier which was achieved using polyurethane (PU) glue. In addition, the primary barrier has been reinforced with ribs and wedges to enhance its sloshing resistance.'
Arctic Vessel With Eco Notation
The design complies with LR’s Ice-Class and Winterisation Rules for operation under harsh Arctic conditions, and the ShipRight FDA plus notation for a 40-year North Atlantic fatigue assessment.
The ships have been constructed in accordance with ShipRight Construction Monitoring procedures, and built to LR’s Environmental Protection "Eco" notation and also features an Inventory of Hazardous Materials (IHM).
Trim Optimation Solution
The new gas carriers use the LR trim Optimisation solution, providing simple and accurate information to ship’s staff so that they can implement operational best practice and achieve fuel savings.
Single Bridge Watchkeeper
The ships’ bridge design has an LR NAV1 notation, which confirms the bridge layout and level of equipment are suitable for safe periodic operation under the supervision of a single bridge watchkeeper.
The bridges have been designed to comply with integrated bridge system (IBS) requirements for centralised monitoring and control of the bridge’s navigational functions, while engine room arrangements conform with LR’s integrated computer control (ICC) notation for integrated and computer based control and supervision of ship operational functions.
Maritime Labour Convention
The accommodation arrangements fulfil the new requirements in accordance with the Maritime Labour Convention (MLC, 2006) while the ships have also been enlisted in LR’s Ship Emergency Response Service (SERS).
Picture: Dynagas' second Arctic LNG carrier Aurora.
