Odfjell extends propulsion upgrade plan

Odfjell's 18-vessel upgrade plan will delier fuel efficiencies of around 20% according to sea trials Odfjell's 18-vessel upgrade plan will delier fuel efficiencies of around 20% according to sea trials

Norwegian ship owner Odfjell is embarking on an upgrade plan that it believes will give it one of the world’s most energy-efficient chemical tanker fleets, following a successful first installation on ‘Bow Clipper’ during scheduled dry docking in August.

The vessels will be equipped with new propeller blades and rudder bulbs as well as receiving upgrades to their main engines, turbochargers and shaft generators. The programme, developed in close cooperation with MAN Diesel & Turbo as well as ABB Turbocharging and Grenaa Motorfabrik, was initially confined to Odfjell’s 11 Kvaerner class 37,000dwt vessels, including Bow Clipper.

The project was extended to include eight Poland class vessels of 40,000dwt after strong initial results. While model tests at Marintek projected a fuel consumption reduction of around 15% for the Kvaerner class vessels, sea trials on Bow Clipper showed an efficiency gain of around 20%.

Dr Kourosh Koushan, research manager at Marintek, noted that a second project for Odfjell documented a fuel saving of approximately 20% on its Poland class vessels. As a result of the upgrades, to be complete in 2017, Odfjell says that the vessels will achieve a RightShip energy rating of A+, the highest possible. The vessels were previously rated at D+.

Warwick Norman, CEO of RightShip, said: “This investment in vessel efficiency demonstrates Odfjell's leadership in environmental sustainability. It is also a smart move from a business perspective positioning Odfjell advantageously in the market.”

Kristian Mørch, CEO of Odfjell, added: “This project shows Odfjell at its finest; it is a result of a true team effort, and demonstrates the deep know-how of our organisation.”

As reported, each vessel has an MAN B&W two-stroke engine powering a four-bladed, controllable-pitch propeller and a power take off (PTO)-driven shaft alternator.

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