Energy efficiency and decarbonization for container fleet in international shipping based on IMO regulatory frameworks: A case study for South Korea

Journal of International Maritime Safety, Environmental Affairs, and Shipping Pub Date : 2023-07-03 DOI:10.1080/25725084.2023.2247832

Junkeon Ahn, Samkyung Seong, Jieun Lee, Yeonjoo Yun

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Abstract

ABSTRACT This study investigates the impact and potential of ship’s energy efficiency and decarbonization in Korean container shipping following the IMO regulatory framework. The IMO started implementing the EEXI (Energy Efficiency eXisting-ship Index) and CII (Carbon Intensity Indicator) regulations for the existing vessels on 1 November 2022. The government of South Korea announced a national plan called “the 2030 Greenship-K initiative” to boost the shipbuilding and shipping industries. This plan describes 140 merchant vessels with green ship technologies that will be required for sustainable shipping. The Korean container fleet needs to examine the impact of the IMO regulations through eco-friendly technologies like engine power limitation, energy-saving devices, alternative maritime fuels, etc. It is necessary to select an eco-friendly technology based on the marginal abatement cost for the fleet. Five case studies are considered on which alternative is beneficial for ship decarbonization. The most favorable alternative seems to be an LNG fuel retrofit for the EEXI and CII regulations for the Korean container fleet. GRAPHICAL ABSTRACT

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基于国际海事组织监管框架的国际航运集装箱船队的能源效率和脱碳:韩国的案例研究

本研究探讨了在国际海事组织监管框架下，船舶能效和脱碳对韩国集装箱航运的影响和潜力。国际海事组织于2022年11月1日开始对现有船舶实施EEXI(能源效率现有船舶指数)和CII(碳强度指标)法规。韩国政府公布了旨在促进造船和航运业发展的“2030绿船k计划”。该计划描述了140艘具有可持续航运所需的绿色船舶技术的商船。韩国集装箱船有必要通过限制发动机功率、节能装置、替代海上燃料等环保技术，研究IMO规定的影响。考虑到车队的边际减排成本，有必要选择环保技术。考虑了五个案例研究，以确定哪种替代方案有利于船舶脱碳。最有利的替代方案似乎是针对韩国集装箱船队的EEXI和CII法规进行液化天然气燃料改造。图形抽象

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Journal of International Maritime Safety, Environmental Affairs, and Shipping

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