Potential energy savings of air lubrication technology on merchant ships

IF 2.3 3区工程技术 Q2 ENGINEERING, MARINE

International Journal of Naval Architecture and Ocean Engineering Pub Date : 2023-01-01 DOI:10.1016/j.ijnaoe.2023.100530

Young-Rong Kim, Sverre Steen

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Abstract

As the reduction of greenhouse gas emissions has become an important issue, measures and devices to reduce energy consumption are in increasing demand. In this study, the potential energy saving due to the application of air lubrication technology in merchant ships is analyzed. We propose a simplified empirical model, covering three different air lubrication technologies, based on the experimental results and assumptions taken in the existing studies. The bottom surface area covered with air is important for the efficiency of the air lubrication system, according to the sensitivity analysis. From the global fleet analysis, net-percentage power saving varies according to the operational profile as well as the technology. Net-percentage power savings of 2–5% from air bubble, 8–14% from air layer, and 16–22% from air cavity technology were obtained assuming calm-water conditions. The methodology can be adopted in early design stage and fleet-wide analyses of various energy-saving measures.

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商船空气润滑技术的节能潜力

随着减少温室气体排放成为一个重要的问题，减少能源消耗的措施和设备的需求越来越大。本文对空气润滑技术在商船上的应用所带来的节能潜力进行了分析。基于实验结果和现有研究的假设，我们提出了一个简化的经验模型，涵盖了三种不同的空气润滑技术。根据灵敏度分析，空气覆盖的底表面积对空气润滑系统的效率有重要影响。从全球车队的分析来看，净节能百分比根据运营概况和技术而有所不同。假设静水条件下，气泡技术的净节电率为2-5%，空气层技术为8-14%，空腔技术为16-22%。该方法可用于各种节能措施的早期设计阶段和全船范围的分析。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Naval Architecture and Ocean Engineering ENGINEERING, MARINE-

CiteScore

4.90

自引率

4.50%

发文量

审稿时长

12 months

期刊介绍： International Journal of Naval Architecture and Ocean Engineering provides a forum for engineers and scientists from a wide range of disciplines to present and discuss various phenomena in the utilization and preservation of ocean environment. Without being limited by the traditional categorization, it is encouraged to present advanced technology development and scientific research, as long as they are aimed for more and better human engagement with ocean environment. Topics include, but not limited to: marine hydrodynamics; structural mechanics; marine propulsion system; design methodology & practice; production technology; system dynamics & control; marine equipment technology; materials science; underwater acoustics; ocean remote sensing; and information technology related to ship and marine systems; ocean energy systems; marine environmental engineering; maritime safety engineering; polar & arctic engineering; coastal & port engineering; subsea engineering; and specialized watercraft engineering.