The Performance of Micro Adiabatic Compressed Air Energy Storage System with Different Final Pressure of Air Storage Tank

IF 2.9 4区工程技术 Q1 MULTIDISCIPLINARY SCIENCES

Advanced Theory and Simulations Pub Date : 2025-05-12 DOI:10.1002/adts.202401298

Linhua Zhang, Mengjie Zhang, Yongxing Song, Zhiwen Wang, Yi Ge, Fajie Pu, Ziyuan Geng

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Abstract

Micro adiabatic compressed air energy storage (A-CAES) systems have emerged as a research hotspot due to their flexible compatibility with distributed energy systems. This study establishes a thermodynamic model of a micro A-CAES system based on a pneumatic motor (PM). The research systematically examines the influence of final gas tank pressure (Pf) within the range of 1.5–3.0 MPa on system performance, with particular focus on monitoring the response characteristics of pneumatic motor inlet pressure, air mass flow rate, and power output. Meanwhile, the expansion stage is divided into a stable operation stage and an unstable operation stage. The research results show that the final pressure of the gas storage tank affects the stable operation stage of the pneumatic motor, but has no obvious impact on the unstable operation stage. The round-trip efficiency of the system reaches the highest value of 5.4% when Pf = 2.5 MPa; the comprehensive efficiency reaches the highest value of 26.6% when Pf = 2 MPa; and the efficiency improvement index reaches the highest value of 21.5% when Pf = 1.5 MPa. Through the economic analysis, it is found that the economic performance of this system is optimal when Pf = 2 MPa.

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不同储气罐末压力下微绝热压缩空气储能系统性能研究

微绝热压缩空气储能（a - caes）系统由于其与分布式能源系统的灵活兼容而成为研究热点。本文建立了基于气动马达的微型a - caes系统的热力学模型。本研究系统考察了1.5-3.0 MPa范围内储气罐终压力（Pf）对系统性能的影响，重点监测了气动马达进口压力、空气质量流量和功率输出的响应特性。同时，将膨胀阶段分为稳定运行阶段和不稳定运行阶段。研究结果表明，储气罐终压力对气动马达稳定运行阶段有影响，对不稳定运行阶段无明显影响。当Pf = 2.5 MPa时，系统的往返效率最高，为5.4%；当Pf = 2 MPa时，综合效率最高，为26.6%；当Pf = 1.5 MPa时，效率提高指数最高，达到21.5%。通过经济分析，发现当Pf = 2 MPa时，该系统的经济性能最优。

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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来源期刊

Advanced Theory and Simulations Multidisciplinary-Multidisciplinary

CiteScore

5.50

自引率

3.00%

发文量

221

期刊介绍： Advanced Theory and Simulations is an interdisciplinary, international, English-language journal that publishes high-quality scientific results focusing on the development and application of theoretical methods, modeling and simulation approaches in all natural science and medicine areas, including: materials, chemistry, condensed matter physics engineering, energy life science, biology, medicine atmospheric/environmental science, climate science planetary science, astronomy, cosmology method development, numerical methods, statistics