More than half of all ship detentions involved ships of 20 years or more in age according to preliminary results from the recent Concentrated Inspection Campaign (CIC) on Propulsion and Auxiliary Machinery in the Paris MoU region. Problem areas included the propulsion of the main engine, cleanliness of the engine room and emergency source of power/emergency generator. There is a saying that research confirms what you already knew, and the essential inspection finding that things are more often not as they ought to be in an older engine room than in a more modern one is no exception to that rule. Why that should be so is not pointed up in the CIC preliminary report, so we’ll circle around that question here.Cleanliness is next to …There’s no excuse for badly maintained and dirty machinery in dirty engine room compartments – no matter what the age of the ship – but far more time and effort is needed to keep them up to the mark. Sleeves have to be kept... [More]
Waste heat from auxiliary marine diesel engines had not been considered much worth thinking about in the past, but times change; a significant amount of energy can now be utilised from the auxiliaries to supplement steam requirements during port stays, and also for some vessels during voyage. With high bunker prices and in challenging economic times for the shipping industry as a whole every single saved dollar counts: witness United Arab Shipping’s recent decision to retrofit all forty-eight ships in its fleet with the latest Alfa Laval Aalborg XS-TC7A auxiliary engine waste heat recovery systems.
Container Ship 'Umm Salal': Photo courtesy of United Arab Shipping Company
With its small footprint and the lowest possible weight to output ratio, the Aalborg XS-TC7A economiser optimises the use of waste heat from the auxiliary engine exhaust gases during voyage and port stays. When used in combination with a waste heat recovery system installed after the main engine, the Aalborg XS-... [More]