Thermodynamic Analysis of an Integrated System Based on Electrolytic Water Hydrogen Production and Energy Storage and Allam Cycle Power Generation

LI Zhe; WANG Keke; WANG Shunsen; LI Bo; YAN Xiaojiang; WANG Jiangfeng

doi:10.7652/xjtuxb202309001

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Thermodynamic Analysis of an Integrated System Based on Electrolytic Water Hydrogen Production and Energy Storage and Allam Cycle Power Generation

更新时间：2025-07-09

- Thermodynamic Analysis of an Integrated System Based on Electrolytic Water Hydrogen Production and Energy Storage and Allam Cycle Power Generation
- Vol. 57, Issue 9, Pages: 1-9(2023)
- 作者机构：
  
  西安交通大学叶轮机械研究所,西安,710049
- 作者简介：
- 基金信息：
- DOI：10.7652/xjtuxb202309001
  CLC： TK11
- Online First：10 September 2023，
  
  Published：2023
- 稿件说明：
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LI Zhe, WANG Keke, WANG Shunsen, et al. Thermodynamic Analysis of an Integrated System Based on Electrolytic Water Hydrogen Production and Energy Storage and Allam Cycle Power Generation[J]. 2023, 57(9): 1-9.
DOI：

LI Zhe, WANG Keke, WANG Shunsen, et al. Thermodynamic Analysis of an Integrated System Based on Electrolytic Water Hydrogen Production and Energy Storage and Allam Cycle Power Generation[J]. 2023, 57(9): 1-9. DOI： 10.7652/xjtuxb202309001.

摘要

为充分利用可再生能源和提高发电系统效率

提出了一种基于固体氧化物的电解水制氢储能与Allam循环发电的集成系统。将高效率的Allam循环应用于电解水制氢储能系统

电解水储能系统负责为Allam循环提供燃料和纯氧

建立了该系统的热力学计算模型。通过Matlab自编程对该系统进行了仿真计算

重点分析了透平进出口参数、动力设备等熵效率、电解效率和循环最低温度对储能-发电系统的影响规律。结果表明:在设计工况下

集成系统效率达到54.47%

储能密度为214.85 kW·h·m

-3

。存在最佳透平进口温度、最佳透平进口压力、最佳透平出口压力使系统效率达到峰值。相较其他动力设备

透平内效率对集成系统性能影响最大

透平内效率从82%增大至92%

集成系统效率提高了2.55%。降低发电循环的最低温度可以提升集成系统性能

当循环最低温度从26 ℃降低至-4 ℃

集成系统效率提高了6.03%。该研究对发展新型大规模电储能技术具有一定的借鉴意义

参数分析结果可为工程实际应用提供理论支撑。

Abstract

In order to make full use of renewable energy and improve the efficiency of the power generation system

an integrated system based on solid oxide electrolytic water hydrogen production and energy storage and Allam cycle power generation was proposed. Specifically

the high-efficiency Allam cycle was applied to the energy storage system of electrolytic water hydrogen production and the energy storage system of hydrolysis was responsible for providing fuel and pure oxygen for the Allam cycle. Mean

while

the thermodynamic calculation model of the system was established and the simulation calculation of the system was carried out through Matlab self-programming with a focus on analyzing the influences of turbine inlet and outlet parameters

isentropical efficiency of power equipment

electrolytic efficiency and minimum cycle temperature on the energy storage-generation system. The results show that the efficiency of the integrated system reaches 54.47% and the energy storage density is 214.85 kW·h·m

-3

under the design condition; there are optimal turbine inlet temperature

optimal turbine inlet pressure and optimal turbine outlet pressure to make the system efficiency reach the peak; compared with other power equipment

the internal efficiency of the turbine has the greatest influence on the system performance

with the internal efficiency of the turbine increasing from 82% to 92% and the system efficiency seeing an improvement of 2.55 percentage points; the system performance can be improved by reducing the minimum cycle temperature. When the minimum cycle temperature is reduced from 26 ℃ to -4 ℃

the system efficiency is improved by 6.03 percentage points. This study can serve as a valuable reference for the development of new large-scale electric energy storage technology

and the results of parameter analysis can provide theoretical support for practical engineering applications.

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