Abst'/> Towards improving energy efficiency regulations of bulk carriers
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Towards improving energy efficiency regulations of bulk carriers

机译：致力于改善散货船的能效法规

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AbstractThe introduction of the Energy Efficiency Design Index (EEDI) by the International Maritime Organization (IMO) caused an upsurge in activities for increasing the energy efficiency and reducing CO2emissions of new vessel designs. However, application of the EEDI is not expected to further advance future design improvements partly owing to the fact the majority of the new buildings already comply with EEDI requirements and particularly since EEDI only considers a single operating point. In addition, the EEDI does not effectively assess a realistic improvement of measures for increasing the ship operating energy efficiency as they can be quite effective in the considered operating point for the EEDI but their performance greatly varies in the real operating conditions. In this study, a more realistic definition of the EEDI is proposed, which is based on a number of representative vessel operating points. The application of the proposed approach for the case of bulk carriers is investigated and the results are discussed in order to reveal its advantages against the currently used approach. The proposed approach can be employed by IMO for improving the energy efficiency regulatory framework.Highlights•Analysis of the energy efficiency of the bulk carrier fleet.•New methodology to define the Attained EEDI in g CO2/hour.•Reference EEDI defined as a function of ship speed and capacity.
机译： 摘要 国际海事组织（IMO）对能源效率设计指数（EEDI）的引入引起了增加能源使用活动的热潮效率并减少新船设计的CO 2 排放。但是，预计EEDI的应用不会进一步推动未来的设计改进，部分原因是大多数新建筑已经符合EEDI要求，尤其是因为EEDI仅考虑单个工作点。此外，EEDI无法有效地评估提高船舶运行能效的措施的现实改进，因为它们在EEDI的考虑工作点上可能非常有效，但其性能在实际运行条件下却有很大差异。在这项研究中，提出了一个更切合实际的EEDI定义，该定义基于许多代表性的船舶工作点。研究了该方法在散货船中的应用，并讨论了结果，以揭示其相对于当前使用方法的优势。 IMO可以采用该提议的方法来改进能效监管框架。 突出显示 • 散货船舰队的能源效率分析。 • 定义以g CO2 /小时为单位的已达到EEDI的新方法。 • 参考EEDI定义为船速的函数和容量。 < / ce：simple-para>

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