CIESC Journal ›› 2023, Vol. 74 ›› Issue (S1): 320-328.DOI: 10.11949/0438-1157.20221598

• Energy and environmental engineering • Previous Articles     Next Articles

Simulation study of thermal management system of alkaline water electrolysis device for hydrogen production

Congqi HUANG(), Yimei WU, Jianye CHEN, Shuangquan SHAO()   

  1. School of Energy and Power Engineering, Huazhong University of Science and Technology, Wuhan 430074, Hubei, China
  • Received:2022-11-13 Revised:2022-12-25 Online:2023-09-27 Published:2023-06-05
  • Contact: Shuangquan SHAO


黄琮琪(), 吴一梅, 陈建业, 邵双全()   

  1. 华中科技大学能源与动力工程学院,湖北 武汉 430074
  • 通讯作者: 邵双全
  • 作者简介:黄琮琪(1999—),男,硕士研究生,
  • 基金资助:


Renewable energy power generation coupling alkaline water electrolysis for hydrogen production technology is one of the ideal ways to product green hydrogen, however, which is limited probably due to the volatility of electrolytic power that affects the stability of the operating temperature of the electrolytic cell, which influences the electrolytic efficiency. For the problem mentioned, this paper constructs a thermal management system of alkaline water electrolysis device for hydrogen production based on the design of an absorption heat transformer. Through the analysis of the operating parameters of the absorption heat transformer under different condensing temperatures, the characteristics of best operating performance are summarized. Through the analysis of the operating condition under different loads, as the heat released from the electrolytic cell drops from 32.28 kW to 25.08 kW, the recovery heat serving users decreases from 8.31 kW to 4.17 kW and the total cooling consumption of the system decreases by 44.55% when the temperature of the regurgitant lye increases from 58℃ to 70℃. The results above show that the system effectively regulates the operating temperature of electrolytic cell, at the same time decreases the cooling consumption and achieves heat recovery, which improves the comprehensive energy utilization efficiency.

Key words: alkaline water electrolysis for hydrogen production, absorption heat transformer, heat recovery, thermal management, simulation study


可再生能源发电耦合碱性电解水制氢是制取绿氢的理想技术路线之一,但是发电功率的波动性、间歇性影响着电解槽温度的稳定,影响制氢效率,因此构建了基于吸收式热泵的碱性电解水制氢热管理系统。通过分析不同冷凝温度下热泵运行参数,总结最优性能的工况特点。对不同负荷工况分析可得,随着电解槽散热负荷从32.28 kW降到25.08 kW,系统中回流碱液的温度由58℃升至70℃,热用户所得回收热从8.31 kW降至4.17 kW,同时总耗冷量降低44.55%。以上结果表明,所构建的碱性电解水制氢热管理系统有效调节电解槽的工作温度要求,可降低制冷能耗并回收热能,提升综合能源利用效率。

关键词: 碱性电解水制氢, 吸收式热泵, 热回收, 热管理, 仿真研究

CLC Number: