The gas storage device is an important energy storage component of the compressed air energy storage system. During the operation of the system, the changes in thermodynamic characteristics such as temperature and pressure of the working fluid in the gas storage device have an important impact on the overall performance and safe operation of the system. The impact on the small and medium-sized compressed air energy storage system using the above-ground steel gas storage container as a gas storage device is particularly obvious. In this paper, FLUENT numerical simulation is taken as the research method. The above-mentioned steel gas storage device of compressed air energy storage system is taken as the research object, and the unsteady three-dimensional model of the gas storage device under time-varying conditions is established. The overall temperature distribution of the outer wall surface of the gas storage device and the change law of the internal working temperature and pressure during the aerated energy storage process are studied. The influences of multiple external factors such as the different external environmental conditions, gas flow rate of the gas storage chamber, surface condition of the gas storage outdoor wall and condition of the gas storage chamber on the thermodynamic characteristics of the gas storage chamber were obtained.%储气室是压缩空气储能系统重要的储能部件.在系统工作过程中,储气室内工质温度及压力等热力学特性的变化对系统的整体性能及安全运行具有重要的影响,对以地上钢制储气容器作为储气室的中小型压缩空气储能系统的影响尤为突出.以FLUENT数值模拟为研究方法,将压缩空气储能系统地上钢制储气室作为研究对象,建立了时变条件下的储气室非稳态三维模型,研究了系统充气储能过程中储气室外壁面的整体温度分布及内部工质温度、压力等热力学特性的变化规律,得到了不同外界环境条件、储气室充气流量、储气室外壁面表面状况及储气室自身条件等多重因素对储气室热力学特性的影响规律.
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