储能科学与技术 ›› 2018, Vol. 7 ›› Issue (2): 232-239.doi: 10.12028/j.issn.2095-4239.2017.0149

• 研究及进展 • 上一篇    下一篇

压气储能电站地下储气库之压缩空气热力学过程分析

刘澧源，蒋中明，王江营，胡炜，李鹏   

  1. 1长沙理工大学水利工程学院，湖南 长沙 410114；2 水沙科学与水灾害防治湖南省重点实验室，湖南 长沙  410114；3 中国电建中南勘测设计研究院有限公司，湖南 长沙 410014
  • 收稿日期:2017-09-23 修回日期:2017-12-03 出版日期:2018-03-01 发布日期:2018-03-01
  • 通讯作者: 蒋中明，教授，博士生导师，主要从事能源地下存储与开发方面的科研工作，E-mail：zzmmjiang@163.com。
  • 作者简介:刘澧源（1993—），女，硕士研究生，主要从事能源地下存储与开发方面的科研工作，E-mail：994811259@qq.com
  • 基金资助:
    国家自然科学基金项目（51778070），中国电建集团科技计划项目（GW-KJ-2012-26）。

Thermodynamic analyses of compressed air energy storage in a underground rock cavern#br#

LIU Liyuan，JIANG Zhongming, WANG Jiangying, HU Wei, LI Peng   

  1. 1School of Hydraulic Engineering , Changsha University of Science & Technology, Changsha 410114, Hunan, China; 2 Key Laboratory of Water-Sediment Sciences and Water Disaster Prevention of Hunan Province, Changsha 410114, Hunan, China; 3 Power China Zhongnan Engineering Corporation Limited, Changsha 410014, Hunan, China
  • Received:2017-09-23 Revised:2017-12-03 Online:2018-03-01 Published:2018-03-01

PDF

319

被引次数

3

摘要： 为定量分析压气储能电站地下储气库内压缩空气热力学过程，在建立空气质量和能量守恒方程基础上，提出了基于FLAC3D软件平台的、考虑围岩传热影响的压缩空气热力学过程分析的差分计算方法。研究了充放气速率、最低运行压力、空气入库温度、密封层材料特性对运行期压缩空气的温度和压力变化过程的影响，研究成果表明，充气阶段，压缩空气的温度和压力都将因为压缩空气与储气库围岩之间的热交换作用而出现不同程度的升高，并且在高压储气阶段出现不同程度的降低；充放气速率、最低运行压力、空气入库温度、密封层材料特性对运行期压缩空气的温度和压力变化过程影响显著；设计和运行过程中应该定量评价各种因素对储气库运行状态的影响，以保证储气库安全、可靠的运行。

关键词: 压气储能, 地下储气库, 压缩空气, 热力学过程, 能量损失

Abstract:

A finite difference method has been used for the thermodynamic analyses of compressed air energy storage in a underground rock cavern. This is based on the mass and energy balance equations and done on a FLAC3D software package. The influences of charge and discharge rates, minimum operating pressure, storage temperature and properties of sealing material on temperature and pressure of compressed air during operation were investigated. The results indicate that the temperature and pressure of the compressed air increase during charge due to heat exchange between compressed air and surrounding rock of the cavern, but decrease during high-pressure gas charge process. The air charge and discharge rates, the minimum operation pressure of the cavern, the inlet air temperature, the material characteristics of the sealing layer are found to be the main factors influencing the compressed air temperature and pressure.

Key words: compressed air energy storage, underground rock cavern, compressed air, thermodynamic process, energy loss