Design of Underwater Compressed Air Flexible Airbag Energy Storage Device and Experimental Study of Physical Model in Pool

Energies Pub Date : 2024-07-15 DOI:10.3390/en17143478

Xiangang Ren, Wanlang Peng, Zhuo Wang, Hongwen Ma

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Abstract

Renewable energy is a prominent area of research within the energy sector, and the storage of renewable energy represents an efficient method for its utilization. There are various energy storage methods available, among which compressed air energy storage stands out due to its large capacity and cost-effective working medium. While land-based compressed air energy storage power stations have been constructed worldwide, their efficiency remains low. Underwater compressed air energy storage has the potential to significantly enhance efficiency, although no such device currently exists. This paper presents the design of an UWCA-FABESD utilizing five flexible air bags for underwater gas storage and discharge. Additionally, it introduces the working principle of the adiabatic underwater compressed air energy storage system and device. Furthermore, a small-scale physical model with similar functionality was designed and manufactured to simulate the charging process of the air bag in onshore charging and discharging tests as well as posture adjustment and lifting arrangement tests, along with underwater charging and discharging tests. These experiments validated the related functions of the designed underwater compressed air flexible bag energy storage device while proposing methods for its improvement. This research provides a new approach to underwater compressed air energy storage.

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水下压缩空气柔性气囊储能装置的设计及水池中物理模型的实验研究

可再生能源是能源行业的一个重要研究领域，而可再生能源的储存则是一种有效的利用方法。目前有多种储能方法，其中压缩空气储能因其容量大、工作介质成本低而脱颖而出。虽然陆基压缩空气储能电站已在世界各地建成，但其效率仍然很低。水下压缩空气储能有可能显著提高效率，但目前还没有这种装置。本文介绍了利用五个柔性气囊进行水下气体储存和排放的 UWCA-FABESD 的设计。此外，本文还介绍了绝热水下压缩空气储能系统和装置的工作原理。此外，还设计和制造了具有类似功能的小型物理模型，以模拟气囊在陆上充放电试验、姿态调整和升降布置试验以及水下充放电试验中的充气过程。这些试验验证了所设计的水下压缩空气柔性气囊储能装置的相关功能，同时提出了改进方法。这项研究为水下压缩空气储能提供了一种新方法。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Energies

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