VESSEL REVIEW | Truong Minh Dream 01 – Vietnamese owner welcomes locally-built bulk carrier to fleet
Vietnam’s Dong Bac Shipbuilding Industry recently took delivery of a new bulk carrier.
Truong Minh Dream 01 was built by local company Shipbuilding Industry Corporation (SBIC) via its subsidiary Nam Trieu Shipbuilding. Design work on the vessel was undertaken jointly by Vietnam Shipbuilding Engineering Company (VISEC) and Finnish naval architecture firm Bluetech in compliance with ClassNK rules that cover operation in international waters.
The double-bottom Truong Minh Dream 01 measures approximately 200 metres (660 feet) by 32.26 metres (105.8 feet) and has a deadweight of 65,000 and a gross tonnage of 35,823, making it one of the largest dry bulk vessels to be built in Vietnam. Power is provided by a main engine from MAN B&W that produces 7,700 kW (10,000 hp) at 85 rpm to deliver speeds of up to 14 knots and a range of 22,000 nautical miles.
Cargo is loaded into the five holds with the aid of four 30-tonne rotating cranes. The holds themselves have electro-hydraulic A-fold type hatch covers with high opening and closing speed to allow loading and unloading to be undertaken in less time.
Low-drag hull and other energy-saving features
The design of the vessel also entailed optimising the hull to reduce drag. This allows the main engine to utilise less power over the same sailing distances, thus reducing emissions.
A 6,800mm propeller combined with a large wing tilt has been fitted to improve thrust efficiency and increase speed, minimising propeller erosion during operation. Low engine power is possible even at low revolution to reduce fuel consumption, further minimising CO2 emissions.
A guide vane mounted just forward of the propeller helps increase the propeller’s propulsion efficiency by up to five per cent. The rudder meanwhile uses a guide blade structure to increase the efficiency of the flow behind the propeller and increase the return efficiency of the ship.
VISEC said the ship has a fuel consumption rate of 22 tonnes per day at operating speed with a 75 per cent MCR.
The superstructure’s aerodynamic properties help reduce wind resistance. VISEC said wind resistance is reduced by around 25 per cent compared to a conventional superstructure, and this permits optimisation of space within the onboard compartments as well as a reduction in the overall displacement.
The exhaust gas aftertreatment system includes a selective catalytic reduction (SCR) system, which utilises a mixture of 40 per cent urea and water to minimise the ship’s NOx emissions in compliance with IMO Tier III standards. To reduce SOx emissions, the ship will consume fuel with a low sulphur concentration of around 0.1 per cent.
The ship has been optimally designed and calculated with relevant technical factors including tonnage, speed, and main engine power to satisfy EEDI Phase II requirements.
Other key features include anti-corrosion systems, a ballast water treatment system, and an oily water separator.
Built for global trade
Another 65,000DWT vessel from the same series is still under construction while a contract for two additional ships was recently signed. All will be operated alongside their earlier sister out of the northern Vietnamese port of Haiphong.
Construction of Truong Minh Dream 01 is in line with the Vietnamese Government's objective of expanding the country’s shipbuilding industry and presenting it as a lower-cost alternative for overseas markets.
