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Fuels(24)Green Shipping(8)Opinions(2)Pollution(1)Technology(10)Videos(2)

DNV GL completes study on the properties of EALs for stern tube applications

DNV GL, together with marine insurers The Swedish Club, Norwegian Hull Club, Skuld and Gard have completed a study of the properties of environmentally acceptable lubricants (EALs) for stern tube applications, in response to the growing number of stern tube bearing failures recently. In fact, DNV GL sponsored lab tests demonstrating that EALs behave differently than traditional mineral oils under transient pressure and temperature conditions. 

Chevron’s paper on lubrication in light of 2020 sulphur cap

Chevron Marine Lubricants published its new white paper ‘The 2020 Global Sulphur Cap and the role of cylinder oil lubricants’, exploring the impact of vessels burning fuels with differing sulphur contents to heavy sulphur fuel oil cylinder oil use. The paper also provides recommendations from Chevron’s experts on how to manage the transition between cylinder oils pre-and post-2020.

Study: The true cost of oil-lubricated propeller shafts

On the sidelines of SMM trade fair in Hamburg, Thordon Bearings published a study highlighting the commercial and environmental benefits of seawater-lubricated propeller shaft bearing arrangements. The study was carried out in response to the increase in oil EAL lubricated sterntube bearing failures.

Organising the switch to low sulphur fuel

As the sulphur cap implementation is imminent in less than 18 months, operators need to worry about many issues as well, other than fuel selection only.  In fact, IMO’s decision to implement a 0.50 per cent cap on sulphur emissions has created uncertainty amongst vessel operators, notes Mr. John LaRese, Marine Fuels Technical Advisor, ExxonMobil who discusses the needs for lubricants and fuel switching.

Lubricant options for a post-2020 world

Shell Marine’s post-2020 cylinder oil expectations are based on a defined position on marine fuel use after the IMO’s cap on sulphur content comes into play, explains Shell Marine Global Technical Manager, Dr Sara Lawrence.

New joint industry project to test biodegradable lubricants

Classification society DNV GL launched a new joint development project with marine insurers The Swedish Club, Norwegian Hull Club, Gard and Skuld, to test the potential influence of Environmentally Acceptable Lubricants on failures in stern tube bearings.

Maersk, Technava to introduce new lubricants

MFT’s BOB technology was developed to be used on Moller-Maersk Group’s fleet of containerships originally. This technology, aims to blend the n-use system oil, as a base oil, with a high-BN cylinder oil product to make an efficient cylinder lubricant.

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