Marine Diesel Engine Auxiliaries – ‘Waste Not, Want Not' Principle

By George Backwell at April 19, 2013 23:20
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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]

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