绝热-近等温复合压缩储能过程热-湿-压耦合动态特性研究

李瑞雄; 郭子奥; 蔡旭超; 孙旭杰; 刘时进; 张宇飞; 孙昊; 王焕然; 席光

doi:10.7652/xjtuxb202605002

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绝热-近等温复合压缩储能过程热-湿-压耦合动态特性研究

专题　储能技术 | 更新时间：2026-04-27

- 绝热-近等温复合压缩储能过程热-湿-压耦合动态特性研究
- Study on Thermo-Moisture-Pressure Coupled Dynamic Characteristics of Adiabatic-Near-Isothermal Hybrid Compressed Energy Storage Process
- 西安交通大学学报 2026年60卷第5期页码：12-23
- 作者机构：
  
  西安交通大学能源与动力工程学院，710049，西安
  西安交通大学未来技术学院，710049，西安
- 作者简介：
  
  作者简介：李瑞雄（1990—），男，副教授，博士生导师；
  王焕然（通信作者），男，教授，博士生导师。
- 基金信息：
  
  国家科技重大专项资助项目(2025ZD0805700)
- DOI：10.7652/xjtuxb202605002
  中图分类号： TK02
- 收稿：2025-09-18，
  
  纸质出版：2026-05-10
- 稿件说明：
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李瑞雄, 郭子奥, 蔡旭超, 等. 绝热-近等温复合压缩储能过程热-湿-压耦合动态特性研究[J]. 西安交通大学学报, 2026,60(5):12-23.

LI Ruixiong, GUO Zi'ao, CAI Xuchao, et al. Study on Thermo-Moisture-Pressure Coupled Dynamic Characteristics of Adiabatic-Near-Isothermal Hybrid Compressed Energy Storage Process[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 12-23.
李瑞雄, 郭子奥, 蔡旭超, 等. 绝热-近等温复合压缩储能过程热-湿-压耦合动态特性研究[J]. 西安交通大学学报, 2026,60(5):12-23. DOI： 10.7652/xjtuxb202605002.

LI Ruixiong, GUO Zi'ao, CAI Xuchao, et al. Study on Thermo-Moisture-Pressure Coupled Dynamic Characteristics of Adiabatic-Near-Isothermal Hybrid Compressed Energy Storage Process[J]. Journal of Xi'an Jiaotong University, 2026, 60(5): 12-23. DOI： 10.7652/xjtuxb202605002.

摘要

为了进一步明确复合压缩空气储能过程的能质转换机制及提升储能过程的能量转换效率，基于压缩干空气宏观质量和能量方程，通过引入非平衡态相变传热传质模型，建立了耦合蒸发冷凝的绝热-近等温复合压缩储能过程热湿传递模型。探究储能过程工质温度、压力、湿度参量的动态演化与竞合规律，进而明确复合压缩储能过程中热湿耦合作用对系统性能的影响机制。结果表明：液体活塞近等温压缩阶段的液相蒸发受温升/压升竞争机制调控，呈现非单调变化，膨胀阶段冷凝与蒸发现象极短时间内交替发生，表现出强烈的瞬态特征；缓冲罐出口空气的状态决定了液体活塞吸气阶段初始条件，而液体活塞的排气状态影响储气罐的冷凝强度，这种串并联耦合结构使储气罐内的冷凝效应沿系统传递并被放大，每日净冷凝能力达到11586.75 g；储能过程工质蒸发与冷凝所涉及的潜热交换，显著改变了系统的热惯性与温度响应，蒸发吸热效应一定程度上延缓了气温上升，增强了过程的近等温特性，而冷凝放热效应减缓了温度下降速率，延长了中高温的持续时间；相较于绝热压缩空气储能系统，复合压缩可以提升3.15%～3.57%的系统效率。研究结果对复合压缩储能系统的运行优化具有理论指导意义。

Abstract

To further clarify the energy-mass conversion mechanisms in hybrid compressed air energy storage (CAES) processes and enhance energy conversion efficiency

a thermal-moisture transfer model for adiabatic-near-isothermal hybrid compression energy storage coupled with evaporation and condensation is established. This model is based on the macroscopic mass and energy equations for compressed dry air

incorporating a non-equilibrium phase-change heat and mass transfer model. The dynamic evolution and competition patterns of the working fluid's temperature

pressure

and moisture during the energy storage process were investigated to elucidate the influence mechanism of thermal-moisture coupling on system performance. The research results indicate that liquid evaporation during the near-isothermal compression stage of the liquid piston is regulated by the mechanism of competition between temperature rise and pressure rise

exhibiting non-monotonic changes. In contrast

during the expansion stage

condensation and evaporation alternate within extremely short time intervals

demonstrating strong transient characteristics. The state of the air at the outlet of the buffer tank determines the initial conditions of the suction phase in the liquid piston

while the discharge state of the liquid piston influences the condensation intensity in the gas storage tank. This series-parallel coupling structure allows condensation effects within the gas storage tank to propagate and amplify through the system

resulting in a daily net condensation capacity of 11586.75 g. The latent heat exchange involved in the evaporation and condensation of the working fluid during the energy storage process significantly alters the system's thermal inertia and temperature response. The evaporative heat absorption effect delays the rise in gas temperature to some extent

enhancing the near-isothermal characteristics of the process

while the condensation heat release effect slows the temperature decline rate and prolongs the duration of medium to high temperatures. Compared to adiabatic compressed air energy storage systems

the hybrid compression approach can improve system efficiency by 3.15% to 3.57%. The findings provide theoretical guidance for optimizing the operation of hybrid compression energy storage systems.

关键词

Keywords

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