Performance analysis of compressed air energy storage systems considering dynamic characteristics of compressed air storage

被引:66
作者
Guo, Cong [1 ]
Xu, Yujie [1 ]
Zhang, Xinjing [1 ]
Guo, Huan [1 ]
Zhou, Xuezhi [1 ]
Liu, Chang [1 ]
Qin, Wei [1 ]
Li, Wen [1 ]
Dou, Binlin [2 ]
Chen, Haisheng [1 ]
机构
[1] Chinese Acad Sci, Inst Engn Thermophys, Beijing 100190, Peoples R China
[2] Univ Shanghai Sci & Technol, Sch Energy & Power Engn, Shanghai 200093, Peoples R China
基金
中国国家自然科学基金;
关键词
Adiabatic Compressed Air Energy Storage; Dynamic model; Compressed air storage; Thermodynamic analysis; THERMODYNAMIC ANALYSIS; RENEWABLE ENERGY; THERMAL STORAGE; POWER-SYSTEM; WIND POWER; PLANT; SIMULATION; CAES; OPTIMIZATION; INTEGRATION;
D O I
10.1016/j.energy.2017.06.145
中图分类号
O414.1 [热力学];
学科分类号
摘要
The compressed air storage connects charging and discharging process and plays a significant role on performance of Adiabatic Compressed Air Energy Storage (A-CAES) system. In this paper, a thermodynamic model of A-CAES system was developed in Matlab Simulink software, and a dynamic compressed air storage model was applied in the simulation, revealing the influence of time-varying temperature and pressure of air on performance indicators, e.g., roundtrip efficiency and energy density. The analysis results can be used as an explanation of the contradicting conclusions on system efficiency from other articles, as well as a reference in the design and operation of an A-CAES plant. There exists an optimal after-throttle-valve pressure when applying energy density as objective function with constant expander inlet pressure. A relatively higher heat transfer coefficient between atmosphere and air in storage tank results in more stored air in charging process and more released air in discharging process, which are of great benefit for A-CAES system in terms of energy density. The dynamic performance characteristic of compressed air storage can affect design capacity of first heat exchanger of expansion train and moreover, reduce roundtrip efficiency and energy density of A-CAES system. (C) 2017 Elsevier Ltd. All rights reserved.
引用
收藏
页码:876 / 888
页数:13
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