On August 12, the 18,500DWT oil/chemical tanker (DN517-2) built by Southeast Shipbuilding under Fujian Shipbuilding Group successfully returned and berthed after a five-day, four-night sea trial.
The vessel has an overall length of 149.8 meters, a beam of 22.8 meters, and a depth of 12.7 meters. Its primary cargo includes crude oil, petroleum products with a density below 1.54 tons per cubic meter, chemicals (Category II and III), liquid chemicals, and IMO Category II and III petroleum products listed in MARPOL Annex I and the IBC Code. The vessel’s main engine and generator sets are equipped with nitrogen oxide emission control devices (SCR), complying with IMO Tier III requirements and ice-class reinforcement standards of ICE CLASS 1C.
The ship features a multi-load line design to meet the requirements of different flag states and ports. Its liquid cargo system employs a variable-frequency hydraulic-driven setup with six independent transfer systems, simultaneously powering six cargo pumps and one ballast pump, enabling the unloading of six liquid cargo groups at once. The discharge rate of a single cargo pump is 300 cubic meters per hour, with a maximum discharge rate of 1,800 cubic meters per hour. The propulsion system utilizes a low-speed two-stroke diesel engine paired with an adjustable-pitch propeller, a front-mounted energy-saving guide wheel, and a flap rudder with a rudder bulb. Additionally, it is equipped with a variable-frequency shaft generator, allowing operation without auxiliary generators during navigation, reducing energy consumption while enhancing maneuverability.
Before the sea trial, the project team actively coordinated with relevant departments, shipowners, and surveyors to thoroughly discuss and communicate the trial plan, technical standards, and resource requirements. During the trial, the team drew extensively on the construction experience of sister ships, strictly followed the trial plan, and successfully completed strength tests for ballast tanks and cargo oil tanks, as well as performance tests for key equipment such as the main engine, boiler, steering gear, generator, anchor winch, and desulfurization system. Verification confirmed that all equipment met design specifications, earning high praise and full recognition from the shipowner and surveyors, once again showcasing Southeast Shipbuilding’s strong capabilities and exceptional quality in shipbuilding.
The successful sea trial not only comprehensively validated the ship’s construction quality but also vividly demonstrated Southeast Shipbuilding’s ability to overcome challenges and pursue excellence under high-intensity, fast-paced conditions. Next, Southeast Shipbuilding will efficiently address trial feedback, solidify pre-delivery preparations, and ensure the vessel is delivered on time with guaranteed quality.
