POWER REDUCTION CONSIDERATIONS FOR BULK CARRIERS WITH RESPECT TO NOVEL ENERGY EFFICIENCY REGULATIONS

After introducing an energy efficiency design index (EEDI) in 2011, International Maritime Organization (IMO) pursued their short- and long-term goals to reduce greenhouse gas (GHG) emissions from ships by presenting, among others, existing ship (EEXI). Contrary EEDI which is used for new solely, EEXI addressing of already built set become formally applicable starting 2023. Existing designs cannot be essentially rapidly changed comply the criterion. The only main particular preliminary phase that can meaningly optimized “post festum” a required engine power, thus, speed. Therefore, paper explores effect policy on fleet 153 bulk carriers between 2000 2020 order address near future prompt changes, specifically considering power reduction. For purpose, attained are calculated each ship. results showed 15% 2000-2012 satisfied 2013-2014 IMO This impacted 2013-2022, as they complied same criterion 88% share. However, no whole database present day requirement one fulfilled contemporary meaning current not able match emerging criteria large extent. In meet criterion, reduction speed predicted assuming shaft limiter installed. investigation MCR total taken into account had reduced 50% average requirements. Moreover, graphic method developed estimation using deadweight (DWT) maximum continuous rating (MCR). proposed simplified based values could with aim satisfy novel regulation application “easy use” approach. Additionally, authors discussed other options reliably evaluate ships.