Marine Engine

کتاب مارین انجین منبعی گسترده پیرامون موتور و سیستم رانش کشتی

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The MAN Diesel Tier II Engine Programme
IMO (International Maritime Organisation) is currently discussing new tightened  regulations for the emissions of oxides of nitrogen (NOx) and sulphur  (SOx) for main engines installed on ships with keel laying after 1 January 2011  The new rules, referred to as Tier II, are expected to be ratified in October  2008  While the SOx limits can be complied with by limiting the sulphur contents  in fuels, the NOx limits will have an impact on engine layout, efficiencies and  eventually on the engine programme  Basically, all engines in our programme can be made and adjusted to comply  with the Tier II NOx limit, but with varying impact on efficiency and physical  execution among the various engine models

In this context, electronically controlled engines, ME types, will have an advantage  Based on process calculations and with due regard to actually recorded efficiencies
of engines, new Tier II efficiencies are calculated for the relevant  engines