湿空气透平循环的压缩空气储能热电联供系统热力学分析

发布时间：2018-07-04 15:52

本文选题：压缩空气储能 + 湿空气　；参考：《西安交通大学学报》2016年07期

【摘要】：为提高传统压缩空气储能系统(CAES)的发电功率和能量利用率,设计了一种热电联供型湿空气透平循环的压缩空气储能系统(CAES-HAT),其将水作为压缩过程储热介质、通过合理利用压缩热和排气热量、以湿空气和水为工质分别对外输出电量和热量,同时分析了关键参数对系统燃烧室燃料质量流量、透平功率、供电量、供热量和系统效率的影响,揭示了释能机组进口工质温度随参数变化的规律。研究结果表明,与传统CAES相比,CAES-HAT具有更高的发电功率和效率,在给定系统条件下机组发电功率增加19.17%,达到354.75MW,供热功率达到66.36MW,相同发电量下节省燃料18.17%,系统效率达到58.14%。释能机组的参数对发电功率影响明显,供电量和供热量对水气比变化敏感,该结果可为CAES系统优化提供参考。
[Abstract]:In order to improve the power and energy efficiency of the traditional compressed air energy storage system (CAES), a heat and electricity combined wet air turbine cycle compressed air energy storage system (CAES-HAT) was designed, in which water was used as the heat storage medium in the compression process. Through the rational utilization of compression heat and exhaust heat, the quantity of electricity and heat of wet air and water are outputted respectively. At the same time, the key parameters for fuel mass flow, turbine power and power supply of the combustor are analyzed. The influence of heat supply and system efficiency reveals the variation of inlet working fluid temperature with parameters. The results show that compared with traditional CAES, CAES-HAT has higher generation power and efficiency. Under the given system conditions, the generating power of the unit increases 19.17%, reaching 354.75 MW, the heating power reaches 66.36 MW, the fuel is saved 18.17% and the system efficiency reaches 58.14% under the same generation capacity. The parameters of the unit have obvious influence on the generation power, and the power supply and heat supply are sensitive to the change of the water-gas ratio. The results can be used as a reference for the optimization of CAES system.
【作者单位】：西安交通大学叶轮机械研究所;西安交通大学动力工程多相流国家重点实验室;
【分类号】：TK02

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