用于氨船的可再生能源多气体浮式储存和再气化设施的性能分析与氢气再转换

Energy Storage Pub Date : 2024-09-12 DOI:10.1002/est2.70033
Dindha Andriani, Muhammad Usman Sajid, Yusuf Bicer
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引用次数: 0

摘要

由于能源消耗需求不断增长以及向清洁能源的重大转变,天然气和可再生能源运输船在能源供应链中发挥着至关重要的作用。然而,液化天然气(LNG)和可再生能源运输船在运输过程中需要液化和再气化,这使得整个过程既昂贵又具有挑战性。因此,浮式储存和再气化装置(FSRU)工厂为上述问题提供了一个解决方案,与传统的陆上设施相比,它还具有价格更低廉、时间效率更高、占地面积更少等额外优势。本研究中提议的一体化 FSRU 由可再生能源提供动力,包括太阳能和海洋热能。一体化 FSRU 的子系统包括抛物面碟形集热器 (PDC)、朗肯循环、有机朗肯循环 (ORC)、多级闪蒸 (MSF) 海水淡化装置、分解、再液化和再气化装置,可提供淡水、电力、氢气和供热等有价值的商品。它还能满足标准多气体港船对可持续能源载体的储存和再气化。本研究通过使用工程方程求解器(EES)软件分析质量、能量、熵和放能平衡方程,从热力学角度评估了拟议系统的性能。此外,还进行了参数研究,以了解各种变量之间的相互联系。分析结果表明,建议的系统能够生产 1.82 兆瓦的电力、2056 千克/天的淡水和 338.3 千克/天的氢气,系统整体能效达到 32.7%,放能效率达到 79.3%。这种方法旨在促进能源多样化,加强能源安全,支持向可持续能源系统过渡,并进一步推动海上运输系统的发展。
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Performance Analysis of a Renewable-Powered Multi-Gas Floating Storage and Regasification Facility for Ammonia Vessels With Reconversion to Hydrogen

Natural gas and renewable energy carriers play critical roles in the energy supply chain due to rising energy consumption demands and a significant shift toward cleaner energy. However, the requirement to liquefy and regasify liquefied natural gas (LNG) and renewable energy carriers for transportation makes the entire process expensive and challenging. Hence, a floating storage and regasification unit (FSRU) plant provides a solution to the aforementioned problems with the additional benefit of being more affordable, time-efficient, and having less land footprint requirement than the conventional onshore facility. The proposed integrated FSRU in this study, is powered by renewable energy, including solar and ocean thermal energy. The subsystems of integrated FSRU consist of parabolic dish collectors (PDC), Rankine cycle, organic Rankine cycle (ORC), multi-stage flashing (MSF) desalination unit, decomposition, reliquefication, and regasification plants, which provide valuable commodities such as freshwater, electricity, hydrogen, and heating. It can also cater to standard multi-gas harboring vessels for storage and regasification of sustainable energy carriers. The study assesses the performance of the proposed system thermodynamically by analyzing mass, energy, entropy, and exergy balance equations using the engineering equation solver (EES) software. Furthermore, parametric studies were conducted to understand the interlinkage among various variables. The analytical results show that the proposed system is able to produce 1.82 MW of electricity, 2056 kg/day of fresh water, and 338.3 kg/day of hydrogen, achieving an overall system energy efficiency of 32.7% and exergy efficiency of 79.3%. This approach aims to foster energy diversification, enhance energy security, and support the transition toward sustainable energy systems, as well as further the advancement of maritime transport systems.

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