Oman Shipping Names Two Valemax Bulkers

By Keith Henderson at May 22, 2012 07:52
Filed Under: Company News, Industry Events

Oman Shipping Company (OSC) today celebrated a double naming ceremony of two of the world’s largest dry bulk carriers of the type Very Large Ore Carriers (VLOC), at builder Jiangsu Rongsheng Heavy Industries Company, China

Caption: Photo of sister ship MV Vale Brasil. The Valemax Class is one of the most efficient dry bulk
carriers in service, offering reductions of up to 35 per cent in emissions per ton of cargo carried.
Image credit: Vale S.A.

The two new Valemax Class vessels, the Vale Shohar and Vale Liwa are named after two places in Oman and will be used to transport iron ore from Vale, Brazil to the Oman Iron Ore Terminal at Sohar Port. Later this year the same yard will deliver a further two vessels of the same class to add to the OSC fleet which will number 37 vessels receipt of these vessels.

The 200,000 GT vessels have an LOA of 1,187.7 ft, (362 m), beam of 213 ft (65 m) and 100 ft (30.4 m) draft. The deadweight of this class was originally 400,000 t, however a political debacle with Chinese ports banning vessels of this size has encouraged this class to be “labelled” 380,000 dwt. The classification society DNV, certifying the vessels however continues to indicate 400,000 dwt.

There is a large number of ships in this class, 35 in total, which are being built by four different shipyards, two in China and two in South Korea. To date 15 ships are in service or launched with the balance due for completion in 2012 or 2013.

There are slight differences in the ship dimension according to the builder and preferences in engine supplier and type. Daewoo Shipbuilding & Marine Engineering and STX Offshore & Shipbuilding use the MAN B&W 7S80ME-C8, with a maximum output of 29,260 kW at 78 rpm, Jiangsu Rongsheng Heavy Industries use a Wärtsilä 7RT-flex82T, with maximum output of 33,250 kW at 76 rpm and Bohai Shipbuilding Heavy Industry use Wärtsilä 7RT-flex84T with maximum output of 29,400 kW at 76 rpm. Despite these nominal maximums, the actual output of all the engines is approximately 29,000 kW at between 76 to 78 rpm driving a FP propeller for a service speed of 15 kn.

The immense size of these vessels produce very low emissions on a cargo ton per mile basis and consequently the Valemax Class ships are one of the most efficient dry bulk carriers in service with Vale reporting a 35 per cent reduction in emissions per ton of cargo carried compared to older ships.

Caption: MAN B&W 7S80ME-C8, with a maximum output of 29,260 kW at 78 rpm.   
Image credit: MAN Diesel & Turbo SE

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