储能压力对液态压缩空气储能系统特性的影响

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储能压力对液态压缩空气储能系统特性的影响

更新时间：2025-07-09

- 储能压力对液态压缩空气储能系统特性的影响
- Issue 11, Pages: 1-9(2019)
- 作者机构：
  
  1. 西安交通大学能源与动力工程学院
  2. 国网冀北电力有限公司
  3. 国网冀北电力有限公司电力科学研究院
- 作者简介：
- 基金信息：
- DOI：
  CLC： TK02;TM61
- Published：2019
- 稿件说明：
移动端阅览
[J]. 2019, (11): 1-9.
DOI：

[J]. 2019, (11): 1-9. DOI：

摘要

为了探究液态压缩空气储能系统工作参数对系统性能的内在作用机理及系统能效提升方法

建立了该系统的热力学模型。应用Aspen Plus软件进行流程仿真

对系统进行了热力学特性分析

并深入研究了液态空气储能压力对系统各单元及系统能效的影响规律。研究结果表明:较高品位的压缩余热和较小的循环空气流量可有效提升系统余热再利用率

显著提升系统性能;当储能压力由0.86 MPa提升至1.67 MPa时

系统压缩热的品位得以提升

膨胀机级间再热温度由114℃提升至160℃

同时可降低循环空气流量约0.5%

使得压缩机耗功降低

同时膨胀机输出总功增加

系统效率由31.61%提升至42.54%;储能压力的提升有利于降低低温储罐漏热

并减少制冷膨胀机出口带液量

可进一步改善系统的整体性能。

Abstract

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references

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