Six New Chemical Tankers to Feature Wärtsilä Propulsion

Posted by Eric Haun
Monday, December 09, 2013
Propulsion package with low-speed engine, gearbox and controllable pitch propeller (Photo: Wärtsilä)

Wärtsilä received an order to supply complete main propulsion systems for six new chemical tankers. The ships are being built at the Hudong-Zhonghua Shipbuilding Group yard in China on behalf of Stolt Tankers B.V., the operator of one of the world's largest chemical tanker fleets and a unit of Stolt-Nielsen Limited. There is an option for a further two vessels.

The Wärtsilä propulsion packages include Wärtsilä RT-flex50 two-stroke engines, controllable pitch propellers with a tunnel gearbox and shaft generator and oily water separators. Deliveries of the equipment are scheduled to begin in summer 2014.

By being able to have the complete propulsion packages delivered from a single supplier, efficient integration of the various systems is ensured. Importantly, the combination of a two-stroke engine and shaft generator requires optimal co-ordination between the engine controls and the propulsion controls, which is significantly facilitated by having all systems supplied and delivered from the same source. Furthermore, with complete propulsion packages coming from one supplier, the risks of costly building delays caused by multi-supplier deliveries can be avoided.

Each of the tankers will be 185 meters in length, with a 32.26m beam and will have 43 stainless steel tanks with a total volume of 44,000 cubic meters. The ships will have IMO I, II and III capabilities and will be able to handle the full range of difficult-to-handle cargoes that Stolt Tankers carries.

The first of the new 38,000 deadweight ton (dwt) tankers is expected to be delivered in December 2015.

wartsila.com
 

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