Sunday, October 24, 2021

Tag: marine lubricants

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Case study: Machinery failure caused by lubrication contamination

In its monthly Safety Scenario for October, the Swedish Club describes an incident of a ship’s engine failure due to contamination of the lubrication system. An investigation showed that the engine had been operated on a high thermal load for a long time and the turbocharger’s efficiency had been affected by fouling, while the lubrication oil had been contaminated for some time.

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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. 

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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.

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