英语原文共 13 页,剩余内容已隐藏,支付完成后下载完整资料
A Study on the Green Ship Design for Ultra Large Container Ship
关于超大型集装箱船的绿色船舶研究
Mingyu Kim Dong-Woo Park
Abstract : A study on the green ship design for Ultra Large Container Ship (ULCS, 18,000 TEU Class Container Ship) was performed based on the four step procedures of the initial design and hull form optimization to maximize economic and propulsive performance. The first, the design procedure for ULCS was surveyed with economic evaluation considering environmental rules and regulations. The second, the characteristics of single and twin skeg container ships were investigated in view of initial design and performances. The third, the hull form optimization for single and twin skeg ships with the same dimensions was conducted to improve the resistance and propulsive performances at design draught and speed by several variations and the results of the optimization were verified by numerical calculations of CFD and model test. The last, for the estimated operating profile of draught and speed, the hull forms of single and twin sked ships were optimized by CFD. From this study, the methodologies to optimize the hull form of ULCS were proposed with considerations during the green ship design and the improvement of the energy efficiency for the optimized hull forms was confirmed by the proposed formula of the total energy considering design conditions, operating profile and fuel oil consumption.
摘要:关于超大型集装箱船的绿色船舶设计(ULCS、18000 TEU集装箱船)是基于四个程序步骤执行的,从初始设计和船型优化来最大化经济效益和推进性能。第一,ULCS的设计过程需要调查经济评价情况和考虑环境法规。第二,对单尾鳍和双艉鳍集装箱船进行初步设计和预算。第三,针对相同尺寸的单尾鳍和双尾鳍船的船型优化,在设计吃水深度和航速下改进阻力和推进性能,从几个变化和优化的结果验证CFD数值计算和模型试验。最后,单双尾鳍船舶的吃水深度和航速,船体形式表明船只被CFD优化。在这项研究中,ULCS提出优化船体的方法形式是在考虑绿色船舶设计和改善能源效率的条件下优化了船体总能量并且考虑到了设计条件,经营效果和燃油消耗。
Key Words : Green ship design, Ultra large container ship (ULCS), Single-skeg ship, Twin-skeg ship, Optimized hull form, Computational fluid dynamics (CFD), Model test at towing tank, Operating profile
关键词:绿色船舶设计,超大型集装箱船,单尾鳍船,双尾鳍船,优化船型,计算流体力学(CFD),在拖曳水池进行模型试验,操作简介
11. Introduction
The growth in size of container ships has been one of the majorachievement of the marine industry, which is expressed as economy of scale recently. The early container ships in the late 1960s had capacities of around 1,000 TEU. Since then, driven by economy of scale, container ship owners have been interested in larger ships now reaching capacities of 18,000 TEU and even more
集装箱船的发展规模已经成为海洋产业的重大成就之一,这最近也被表示为经济规模。集装箱船在1960年代初的能力约为1000 TEU。自那以后,集装箱船的船东一直对更大的船感兴趣,现在集装箱船已经可以达到18000TEU甚至更大。
Aside from the issue of the container ship size, todayrsquo;s another big issues are high fuel oil price and global climate change which induce the shipyards and ship owners to mitigate fuel oil consumption and several marine pollution such as exhaust gas (SOx, NOx, Green House Gas, i.e. CO2, etc.) (Choi et al., 2013), water pollution (ballast water, bilge water, anti-fouling material, noise, etc.), waste delivery ashore (oil/chemical residues, wastes, etc.), hazardous materials and ship recycling. These topics force marine industry to act and find ways to design and operate ships more environmental friendly and economically.
除了集装箱船的大小问题,现在的另一个大问题是高燃油价格和全球气候变化诱发船厂和船东要求降低燃油消耗和废气等一些海洋污染(硫氧化物、氮氧化物、温室气体,即二氧化碳等)(Choi et al.2013)、水污染(压载水舱底水、防污材料,噪音,等等),运到岸上的垃圾(油/化学残留物,废弃物等),危险材料和船舶回收利用。这些话题迫使海洋产业采取行动,寻找更环保更经济的设计和操作船只的方法。
Aside from the issue of the container ship size, the InternationalMaritime Organization (IMO) currently has developed Energy Efficiency Design Index (EEDI) (Resolution MEPC. 203(62), 2011) in order to benchmark different designs and use the EEDI as a requirement for a minimum performance for fuel efficiency and GHG (Green House Gas) emissions (Choi et al., 2015) which will be controlled through new IMO legislation which comes into force on January 1, 2013. In future years, the EEDI will restrict CO2 through phased reductions in limits. in much same way that MARPOL Annex VI has regulated SOx and NOx emissions.
除了集装箱船的大小的问题,国际海事组织(IMO)目前发表达了能效设计指数作为基准,设计和使用EEDI作为燃料效率和温室气体排放的最低性能要求并将立法,法规将在2013年1月1日生效。在未来几年,EEDI将通过逐步减小来限制CO2的排放。并且以同样的方式,防污公约附件六将监管硫氧化物和氮氧化物的排放。
In this work, the four step procedures of the initial design and hull form optimization to maximize economic and propulsive performance are presented for ULCS.
The first, initial design procedures are described for ULCS with economic assessment under environmental regulations and various requirements of potential ship owners with design items and factors to be considered.
The second, the characteristics and performance of single and twin skeg ships are compared based on information from initial design and optimized hull form for both ships in this paper.
The third, hull form optimization to improve resistance and propulsive performance at design draught and speed was conducted for single and twin skeg ships with the same dimensions by several variation and optimized hull form for each skeg type was derived through comparison and analysis with the results of CFD and model tests.
The last, hull form optimization at initially estimated range of draught and speed based on operating profile of previous two other size ships already optimized was studied using single and twin skeg hull forms optimized at design draught and speed. In addition, initial and optimized hull form are evaluated by the formula of total energy considering an economic and real operation perspective and performance comparison with trim variation for optimized hull form are conducted to reduce fuel consumption further in operation.
在这部文章中,最初四个步骤程序是关于初始设计和船型优化以最大化ULCS的经济和推进性能。
第一,初始设计过程被描述为关于ULCS在环境法规和各种潜在的船东的要求下的经济评价与设计项目需要考虑的因素。
第二,在单尾鳍船和双尾鳍船特点及性能比较的基础上,从最初的设计来进行船型优化。
第三,船型优化改进阻力和推进性能,在设计吃水和航速下进行单、双尾鳍船具有相同维数的变异和优化船型,比较分析每个尾鳍类型和分析CFD和模型试验的结果。
最后,船型优化的速度和范围是根据以往的其他单双尾鳍船在吃水和速度方面优化的操作简介此外,初始和优化船型中评估总能量的公式应考虑经济情况和实际操作角度以及性能比较与纵倾变化以优化船型达到进一步的降低油耗。
剩余内容已隐藏,支付完成后下载完整资料
资料编号:[150408],资料为PDF文档或Word文档,PDF文档可免费转换为Word
以上是毕业论文外文翻译,课题毕业论文、任务书、文献综述、开题报告、程序设计、图纸设计等资料可联系客服协助查找。