Reusing existing ship structures for large capacity wave energy conversion (RESWEC)

重复利用现有船舶结构进行大容量波浪能转换（RESWEC）

• 批准号: EP/P018750/1
• 负责人: Florent Trarieux
• 金额: $ 6.12万
• 依托单位: CRANFIELD UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2016
• 资助国家: 英国
• 起止时间: 2016 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FP018750%2F1
• 关键词: Reusing; existing; ship; structures; large

The aim of the project is to assess the feasibility of the structural modifications of a range of existing oil tankers to support an array of oscillating water columns for large capacity wave energy conversion.As with any complex project facing a number of engineering uncertainties, a methodology to de-risk each of the project sub-tasks has been developed. The technical approach will build upon known technologies and measurable quantities to produce realistic and pragmatic solutions to the challenges encountered. By starting with an existing ship, there is an opportunity to reuse the engineering expertise, and financial outlay, required to design and build a large seagoing vessel. Proposed modifications must ensure that the original strength will be maintained, with the primary loading carried by alternative members where the original continuity must be disrupted for installation of the OWC chambers. Several configurations will be developed leading to a selection of the most suitable. The new arrangement and particulars will then be used to calculate and assess the intact stability characteristics of the modified configuration. Several alternative research and development plans have been considered, but then rejected, due to the exponential nature of compounding risk. By focusing on the concept in its entirety, i.e. attempting to solve all of the challenges relating to OWC operation, PTO, electrical generation and naval architectural questions in a single proposal, the risk to project success would be inherently increased. That risk cannot be mitigated in the same fashion as tackling each major subgroup in a methodical manner, with a further technical and economic risk that the inadequate attention may generate unreliable solutions. One of the key technical issues, which is the core of this project, lies with the prediction of the structural loads in the case of a ship hull having not only multiple openings at the bottom, but also when wave energy is converted into pneumatic energy through an air turbine represented, at model scale, by an orifice plate. A purely analytical/numerical approach to predict such loads would be very risky in the case of this particularly challenging fluid-structure interaction problem presenting an air and water interface. Only a carefully thought-out experimental approach can provide an initial set of data required by the naval architect to assess the feasibility of the proposed concept.The project will be industry-led by Protean Wave Technology Ltd (PWT), with detailed work packages delegated to the parties with greatest expertise in each area. PWT will manage the project, communicate with Innovate UK on financial matters and report the project deliverables. PWT will coordinate and deliver the structural and stability analyses, whilst liaising and working closely with the team in Cranfield University on the test program.

该项目的目的是评估对一系列现有油轮进行结构改造的可行性，以支持一系列振荡水柱进行大容量波浪能转换。与任何面临许多工程不确定性的复杂项目一样，我们开发了一种降低每个项目子任务风险的方法。该技术方法将建立在已知技术和可测量数量的基础上，为所遇到的挑战提供现实和务实的解决方案。从现有船舶开始，就有机会重新利用设计和建造大型海船所需的工程专业知识和财务支出。拟议的修改必须确保维持原始强度，主要载荷由替代构件承担，而安装 OWC 室时必须破坏原始连续性。将开发多种配置，以选择最合适的配置。然后，新的布置和细节将用于计算和评估修改后的配置的完整稳定性特性。已经考虑了几种替代研究和开发计划，但由于复合风险的指数性质而被拒绝。通过关注整个概念，即尝试在单个提案中解决与 OWC 操作、取力器、发电和海军建筑问题相关的所有挑战，项目成功的风险将会自然增加。这种风险无法像有条不紊地处理每个主要子群体那样减轻，还存在进一步的技术和经济风险，即关注不足可能会产生不可靠的解决方案。该项目的核心关键技术问题之一在于预测船体底部不仅有多个开口的情况下的结构载荷，而且还预测了当波浪能通过以模型比例由孔板表示的空气涡轮机转化为气动能时的结构载荷。在这种特别具有挑战性的空气和水界面的流体-结构相互作用问题的情况下，纯粹的分析/数值方法来预测此类载荷将是非常危险的。只有经过深思熟虑的实验方法才能提供造船工程师所需的一组初始数据，以评估拟议概念的可行性。该项目将由 Protean Wave Technology Ltd (PWT) 主导行业，并将详细的工作包委托给在每个领域最专业的各方。 PWT 将管理该项目，与创新英国就财务事宜进行沟通并报告项目可交付成果。 PWT 将协调并提供结构和稳定性分析，同时与克兰菲尔德大学的团队就测试项目进行联络和密切合作。

项目成果

NUMERICAL AND EXPERIMENTAL ASSESSMENT OF WAVE LOADING AND DYNAMIC RESPONSE OF THE WAVESHIP CONCEPT IN REGULAR WAVES

规则波中波浪载荷和波浪船概念的动态响应的数值和实验评估

• 发表时间: 2017
• 作者: BONA G M

Wave excitation loads prediction on a wave energy converter and comparison with tank tests data

波浪能转换器的波浪激励载荷预测以及与水池试验数据的比较

• 发表时间: 2016
• 作者: CALMETTE B