The propulsion system for 19 Odfjell vessels will be upgraded to reduce fuel emissions and cut fuel consumption by up to 20%.
The vessels will be equipped with new energy efficient propeller blades, rudder-bulb and will undergo technical upgrades of the main engine, turbo chargers and shaft generator.
It is expected that these combined upgrades will reduce fuel consumption and emissions by up to 20%.
In tests conducted by Norwegian Marine Technology Research Institute indicated a reduction in fuel consumption of about 15% for the series of 11 37,000 dwt vessels (Kvaerner class). Sea trials before and after the upgrade show an overall efficiency gain of more than 20%.
As a result, Odfjell will also upgrade an additional 8 40,000 dwt vessels (Poland class). The concept has been developed by Odfjell working in partnership with MAN Diesel and Turbo, but also Grenaa Motorfabrik and ABB AS Turbocharging.
The upgrade includes highly efficient Kappel propeller blades, fairing cone and rudder bulb, shaft generator gearbox and Odfjell determined settings.
The first vessel to be upgraded was the Bow Clipper (37,000 dwt) during the scheduled dry-docking. The remaining 18 vessels are planned to be upgraded within 2017.
Dr Kourosh Koushan, research manager at Marintek, says: ‘We are involved in many projects related to energy saving and the reduction of emissions. Odfjell is one of our clients showing great technological interest and willingness to apply energy saving measures to reduce emissions.
‘In this particular project we documented an energy saving in excess of 15% for the Kvaerner class, which is high compared to many other vessels tested. In the second project for Odfjell we documented a saving of approximately 20% for the Poland class, which is exceptional.’