一种新型蒸汽恒压抽水压缩空气储能系统及其热力学分析

李丞宸; 李宇峰; 张严; 杨珍帅; 王焕然

doi:10.7652/xjtuxb202106011

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一种新型蒸汽恒压抽水压缩空气储能系统及其热力学分析

更新时间：2025-07-09

- 一种新型蒸汽恒压抽水压缩空气储能系统及其热力学分析
- Novel Steam Constant-Pressure Pumped Hydro with Compressed Air Energy Storage System and Thermodynamic Analysis
- 西安交通大学学报 2021年55卷第6期页码：84-91
- 作者机构：
  
  西安交通大学能源与动力工程学院,西安,710049
- 作者简介：
- 基金信息：
  
  : 2020-09-27。作者简介: 李丞宸(1992—),男,博士生;王焕然(通信作者),男,教授,博士生导师。基金项目: 国家自然科学基金资助项目(51676151)
- DOI：10.7652/xjtuxb202106011
  中图分类号： TK02
- 网络首发：2021-06-10，
  
  纸质出版：2021
- 稿件说明：
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李丞宸, 李宇峰, 张严, 等. 一种新型蒸汽恒压抽水压缩空气储能系统及其热力学分析[J]. 西安交通大学学报, 2021,55(6):84-91.

Novel Steam Constant-Pressure Pumped Hydro with Compressed Air Energy Storage System and Thermodynamic Analysis[J]. 2021, 55(6): 84-91.
李丞宸, 李宇峰, 张严, 等. 一种新型蒸汽恒压抽水压缩空气储能系统及其热力学分析[J]. 西安交通大学学报, 2021,55(6):84-91. DOI： 10.7652/xjtuxb202106011.

Novel Steam Constant-Pressure Pumped Hydro with Compressed Air Energy Storage System and Thermodynamic Analysis[J]. 2021, 55(6): 84-91. DOI： 10.7652/xjtuxb202106011.

摘要

针对原有抽水压缩空气储能系统的变工况特性

在本团队现有抽水压缩空气储能系统研究的基础上

提出了一种新型蒸汽恒压抽水压缩空气储能系统。该系统利用蒸汽凝结过程释放的潜热与显热

实现了释能过程的恒压运行

同时蒸汽凝结后参与做功

提高了系统的容量和储能密度。基于热力学第二定律对该系统的性能进行分析

重点研究了系统总效率和能量密度随各参数的变化规律

以及系统各部分设备的损失。结果表明:随着预置压力的增加

系统的能量密度逐渐增加

但总效率逐渐降低; 随着单个罐体的体积逐渐增加

系统的总效率和能量密度先后出现极小值和极大值; 蒸汽发生器和水气共容舱的损失占比最高。

Abstract

In view of off-design working condition characteristics of the original pumped hydro compressed air(PHCA)system

and based on previous research of PHCA

a novel steam constant-pressure pumped hydro combined with compressed air energy storage system is proposed. The system realizes constant pressure discharge process by using the latent heat and sensible heat released from steam

and steam also serves as working fluid after condensation

which improves energy capacity and energy density of whole system. Following the second-law of thermodynamics

the system performances are analyzed with focus on the dependence of energy efficiency and energy density on each parameter

and the exergy loss of the equipment in each part of the system is evaluated. The results show that with the increasing initial pressure

energy density of the system increases gradually

but the total efficiency decreases; with the increasing volume of a single cylinder

the total efficiency and energy density of the system reach the minimum and maximum successively; the exergy loss of steam generator and cylinder gets the highest.

关键词

Keywords

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