绿色船舶的现状和发展趋势分析

随着绿色生态观念的深入发展和IMO对环保要求的日益严苛,“绿色船舶”和“绿色航运”已成为未来造船业和航运业发展的主旋律,本文对绿色船舶概念和内涵进行了深入的阐述,介绍了国内外绿色船舶及其相关技术发展现状,分析了绿色船舶的发展趋势。     

绿色航运发展趋势和燃料电池船舶的应用前景

针对燃料电池因具有效率高、排放清洁、噪声和振动小等特性而在船舶节能减排和绿色航运发展中倍受关注的现状,分析我国绿色航运的发展趋势,进而介绍船舶新能源技术和燃料电池技术及其特性。综述燃料电池船舶在国内外的研究与应用情况,重点讨论燃料电池在船舶上的应用前景,展望船用燃料电池未来的发展方向。     

绿色船舶

事件回放：不论是社会责任,还是现实压力,绿色船舶都必需要成为业界的关注重点。不夸张地说,没有绿色船舶,就没有航运的未来。但这毕竟是一个新生事物,怎样与之“长相守”还考验着业界的智慧。     

燃料电池简介及其在船舶上的应用前景

此文介绍了燃料电池的工作原理、种类及其特征,阐述了燃料电池在船舶和固定电站的商业应用及其发展前景。     

燃料电池在船舶上的应用

近年来,由于能源紧缺和环境意识的增强,人们已认识到一种新推进系统的重要性,它能代替船上现有的电网和／或推进系统,燃料电池由于具有可观的发展前景而在该系统中起主要作用,将燃料电池用于常规（非核动力）潜艇的AIP系统后,人们开始认识到它的优点,对于水面舰船,特别是商船来说,要广泛使用燃料电池还为时尚早,必须等到成本和技术可靠性都达到与常规推进系统一样才行。     

绿色船舶燃料电池混动系统能量管理策略研究

针对绿色船舶燃料电池-锂电池混合动力系统存在经济性差、双能量源协同匹配难的问题,研究燃料电池开关和模糊逻辑控制2种不同策略下系统的经济性与可靠性。使用大功率燃料电池模拟器、燃料电池专用直流转换器等模块建立了混合动力系统的模拟实验平台,通过两种策略分别实现对混合动力系统输出功率的管理。实验结果表明,2种策略在优化能量分配上均显示出可行性,进一步比较发现,在船舶典型工况下,复合动力系统稳定运行的时长越久,燃料电池开关策略控制下的氢耗量越低,提高系统的氢燃料经济性。这项工作为后续进一步提升燃料电池船舶混合动力系统运行效率和优化系统性能具有工程指导意义。     

绿色船舶制造技术的发展趋势

本文综述了绿色船舶制造技术的现状和发展趋势，并对绿色船舶在设计和建造中需着重考虑的一尝问题提出解决方案。     

绿色甲醇用作远洋船舶航运燃料的应用研究

文章从国际法规、绿色燃料来源、加注及存储、发动机、其他场景应用等角度对比当下可用的各种清洁能源,尤其是绿色甲醇和绿色液氨,结果表明绿色甲醇为当下可用的、适合远洋航运的最佳脱碳燃料。     

走可持续发展道路，发展绿色内河航运

我国河流众多,可开发的航运资源丰富,但在各类交通运输系统日益发达的今天,我国内河航运却陷入了停滞不前的困境。如何认清我国内河航运的现状,结合绿色航运的理念来开发航运资源,实现内河航运的可持续发展,是本文探讨的主要内容。     

An application of BBNs on the integrated energy efficiency of ship–port interface: a dry bulk shipping case

ABSTRACT

A considerable amount of energy is consumed with every completed ship voyage and each port operation performed. Recent regulative approaches by the IMO are to enforce the shipping industry to become more energy efficient and sustainable. There is a growing amount of literature on the energy efficiency management of ships and ports. However, there is still inadequate research effort on the ship–port interface in order to obtain an Integrated Energy Efficiency framework for marine transport operations. In this research, a theoretical concept is generated to measure holistic energy efficiency in shipping operations. The main purpose of this paper is to identify nodes of the integrated ship-port energy efficiency framework and develop a probabilistic approach, which can help to increase energy efficiency and reduce CO2 emissions for shipping companies. This research generates an application of BBNs on ship–port interface regarding the integrated operational energy efficiency interactions by aiming to optimise holistic operational energy efficiency and CO2 emissions. The outcomes suggest that it would be possible to increase the probability of a more energy efficient and sustainable marine transport operation by integrating the influences of port and ship operation performances and their elements on the related route planning and slow steaming decision-making.     

Evolution of green shipping research: themes and methods

Over the past 30 years, there have been growing concerns on the environmental impacts of maritime transportation, which have attracted great attention from both academia and practitioners. Understanding developments in this area can help guide future research. We conducted a comprehensive review of green shipping research, comprising 213 papers published in transportation journals in SSCI of 2017 over the period 1988–2017. We find that research on green shipping has increased greatly since 2012, accounting for 77.5% of the reviewed papers. The main focus today on green shipping was on air pollution, and the classification of green shipping practice, such as technical measures, operational options, market-based measures, and recycling and reusing, is becoming clear. According to the existing studies, future research on green shipping must strengthen technology research to not only solve practical problems, but also to establish a theoretical green shipping system. Moreover, researchers from different countries could cooperate with each other to give effective suggestions on setting standards and laws of green shipping. Finally, we identify the future research themes will focus on setting up green shipping system and legislation and policy.     

Neural network-based fuel consumption estimation for container ships in Korea

ABSTRACT

Due to the outstanding strength of advanced machine-learning techniques, they have become increasingly common in predictive studies in recent years, particularly in predicting ship energy performance. In constructing predictive models, prior studies have mostly employed vessels’ technical parameters to establish machine-learning algorithms. To bridge this research gap and enable wider applications, this paper presents the design of a multilayer perceptron artificial neural network (MLP ANN) as a machine-learning technique to estimate ship fuel consumption. We utilized the real operational data from 100–143 container ships to estimate fuel consumption for five different container ships grouped by size. We compared the performance of two ANN models and two multiple-regression models. Four input parameters (sailing time, speed, cargo weight, and capacity) were included in the first ANN and the first regression model, while the other two models only consider two inputs from physical function. The mean absolute percentage error of the ANN models with four inputs was the smallest and less than those in extended statistical models, demonstrating the MLP’s superiority over the statistical model. The MLP ANN model can thus be applied to confirm the effectiveness of the slow-steaming method for achieving energy efficiency.     

单面焊双面成形在船舶克令吊基座上的应用

将单面焊双面成形新工艺应用于船舶克令吊上,介绍设计原理和操作方法,装配要求对焊接质量的影响,对新旧工艺进行相关对比。     

航运节能减排方式的转型路径探讨

由于全球航运需求未来将持续处于低增长态势,而燃油成本又是船东最为关注的运营成本之一,节能减排逐渐成为应对国际海事组织相关规则和实现绿色航运的重要手段.结合航运企业现实案例,探讨了节能减排着力点由传统技术应用型向综合技术服务型转化的可行性.     

外资进入中国航运市场现状分析及应对策略

随着中国加入WTO,市场的不断开放,外资航运巨头加速了在中国的扩张,这给中国的航运企业很大压力和挑战,本文剖析了外资航运巨头进入中国航运市场的现状,从而提出我国航运企业的应对之策。     

应用新型涂料、促进绿色造船

推广应用有机硅低表面能防污涂料、水性涂料、厚浆型涂料、通用底漆,降低甚至消除船舶涂料中有害物质对人和环境负面影响,减少有机废料的产生,节省各种资源的消耗,促进绿色造船的发展。     

2018年世界船舶市场评述与2019年展望

回顾了2018年世界经济、航运、造船市场,并对2019年进行展望。2018年世界经济平稳复苏,航运市场整体趋势向好,新船订单吨位量小幅上升;2019年世界经济风险偏于下行,航运市场将在压力中前行,各细分市场"几家欢喜几家愁",世界新造船市场呈现弱复苏态势,绿色和智能是市场增长的主要动力来源。     

加入WTO对我国海运服务贸易的影响

我国加入WTO不仅给我们带来了严峻的挑战,也为我们提供了新的发展机遇。我国在进一步开放海运服务贸易市场的同时,必须采取适当的措施保护我国航运企业免遭毁灭性打击,促进我国海运服务贸易业的繁荣与发展。