Enhancing shipboard waste heat management with advanced technologies

IF 16.3 1区 工程技术 Q1 ENERGY & FUELS Renewable and Sustainable Energy Reviews Pub Date : 2024-10-24 DOI:10.1016/j.rser.2024.114871
Giovanni Barone , Annamaria Buonomano , Gianluca Del Papa , Robert Maka , Adolfo Palombo
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Abstract

The complexity of the energy systems onboard ships, combined with the different operating/weather conditions and the availability of cutting-edge technologies, makes analyses for improving the energy and environmental performances of ships time consuming and challenging. From this point of view, this article provides new criteria for the sustainable design and management of energy systems of existing or new ships. In particular, the impact of the adoption of organic Rankine cycle units, wet steam volumetric expanders, and single or double effect absorption chillers is here investigated. Two types of ships are examined as suitable case studies, evaluating the impact of each technology and their combinations by varying the shipping cruises. By using a dynamic simulation approach, potential savings and optimal solutions are assessed for different energy system layouts by also comparing their economic, energy and environmental impact performance. Results are reported in specific performance matrices for helping stakeholders in preliminary energy efficiency analyses.
In particular, outcomes show that high cooling demands of ships in the Caribbean Sea enable primary energy savings close to 4.5 %, compared to 3.5 % in the Mediterranean Sea and 3 % in the North Sea. In the latter case, cooling needs can be almost fully balanced through the examined energy recovery technologies. Screw expanders integrate best in all operating conditions with short paybacks, whilst organic Rankine cycles (with electrical efficiency above 8%) are advantageous especially in cold climate routes. Benefits on environmental impact are significant, with avoided CO2 emissions around 6 kt/y, depending on the selected ship cruise.

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利用先进技术加强舰船余热管理
船上能源系统的复杂性,加上不同的操作/天气条件和尖端技术的可用性,使得改善船舶能源和环境性能的分析既耗时又具有挑战性。因此,本文为现有或新建船舶能源系统的可持续设计和管理提供了新的标准。特别是,本文研究了采用有机朗肯循环装置、湿蒸汽容积式膨胀机以及单效或双效吸收式冷却器的影响。我们将两类船舶作为合适的案例进行研究,通过改变航程来评估每种技术及其组合的影响。使用动态模拟方法,通过比较不同能源系统布局的经济、能源和环境影响性能,评估了潜在的节约和最佳解决方案。特别是,结果表明,加勒比海船舶的高冷却需求可使一次能源节约率接近 4.5%,而地中海为 3.5%,北海为 3%。在后一种情况下,通过所研究的能量回收技术几乎可以完全满足冷却需求。螺杆膨胀机在所有运行条件下都能实现最佳集成,投资回收期短,而有机朗肯循环(电效率超过 8%)则具有优势,尤其是在寒冷气候条件下。对环境影响的效益非常显著,根据所选船舶的巡航情况,可避免约 6 kt/y 的二氧化碳排放量。
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来源期刊
Renewable and Sustainable Energy Reviews
Renewable and Sustainable Energy Reviews 工程技术-能源与燃料
CiteScore
31.20
自引率
5.70%
发文量
1055
审稿时长
62 days
期刊介绍: The mission of Renewable and Sustainable Energy Reviews is to disseminate the most compelling and pertinent critical insights in renewable and sustainable energy, fostering collaboration among the research community, private sector, and policy and decision makers. The journal aims to exchange challenges, solutions, innovative concepts, and technologies, contributing to sustainable development, the transition to a low-carbon future, and the attainment of emissions targets outlined by the United Nations Framework Convention on Climate Change. Renewable and Sustainable Energy Reviews publishes a diverse range of content, including review papers, original research, case studies, and analyses of new technologies, all featuring a substantial review component such as critique, comparison, or analysis. Introducing a distinctive paper type, Expert Insights, the journal presents commissioned mini-reviews authored by field leaders, addressing topics of significant interest. Case studies undergo consideration only if they showcase the work's applicability to other regions or contribute valuable insights to the broader field of renewable and sustainable energy. Notably, a bibliographic or literature review lacking critical analysis is deemed unsuitable for publication.
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