中国电力 ›› 2016, Vol. 49 ›› Issue (7): 90-95.DOI: 10.11930/j.issn.1004-9649.2016.07.090.06

• 发电 • 上一篇    下一篇

回热式压缩空气储能系统改造与分析

韩中合, 刘士名, 周权, 庞永超   

  1. 电站设备状态监测与控制教育部重点实验室 华北电力大学,河北 保定 071003
  • 收稿日期:2015-11-27 出版日期:2016-07-20 发布日期:2016-07-28
  • 作者简介:韩中合(1964—),男,河北武邑人,教授,博士生导师,从事热力设备状态监测与故障诊断,两相流计算与测量,新能源开发利用等研究。E-mail: liu329754105@163.com
  • 基金资助:
    中央高校基本科研业务专项资金项目(13XS38)

Retrofit and Analysis of Recuperative A-CAES System

HAN Zhonghe, LIU Shiming, ZHOU Quan, PANG Yongchao   

  1. Key Lab of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Baoding 071003, China
  • Received:2015-11-27 Online:2016-07-20 Published:2016-07-28
  • Supported by:
    This work is supported by the Fundamental Research Funds for the Central Universities (No; 13XS38)

摘要: 为降低储热介质成本,基于以矿物油储热的绝热压缩空气储能系统(A-CAES),增设供热压缩机以降低储热温度,进而提出以水为储热介质的新型热电冷联产的压缩空气储能系统。建立改造后的系统模型,采用热力学方法对设计工况下两系统进行了计算,比较了供热压比(2.4~3.8)与换热器效能(0.6~0.9)变化时热电冷联产系统的性能参数。结果表明,热电冷联产系统的储热温度大幅降低,实现了储热介质的改变;与原系统相比,热电冷联产系统电耗率基本不变,热效率、效率分别提高约14%、2.6%;供热压比变化对系统性能及设备损影响较小,换热器效能变化对系统效率、损有显著影响。

关键词: 压缩空气储能, 热电冷联产, 热力学模型, 热力学方法

Abstract: To cut down the cost of thermal energy storage(TES) medium, the heating compressor is appended to the mineral oil-based adiabatic compressed air energy storage(A-CAES ) system to lower the TES temperature. Furthermore, a novel compressed air energy storage (CAES) system for combined cool, heat and power (CCHP) taking water as the TES medium is proposed. The thermodynamic model of the system is then established such that the thermodynamic calculations are conducted for two systems under designed operation conditions. In particular, the CCHP system performance parameters are computed and compared with the variation of heating pressure ratio (2.4~3.8) and heat exchanger efficiency(0.6~0.9) respectively. The results show that the TES temperature of the CCHP system is significantly reduced with the new water-based TES medium. Compared with the original system, the thermal efficiency and exergy efficiency are improved by about 14% and 2.6% respectively, while the ER remains almost unchanged. In addition, the impact of heating pressure ratio on system performance and exergy losses of the equipments is very minimum while the effectiveness shows significant impacts on system efficiency and exergy losses.

Key words: compressed air energy storage (CAES), CCHP, thermodynamic model, thermodynamic method

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