Research on the optimization of water electrolysis system based on electricity and heat resources

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摘要:

在“双碳”目标下,用电解水制备绿氢替代化石能源生产灰氢,对推动绿色低碳的现代能源体系建设具有重要意义。因输人电能和热能具有品位和经济性差异,如何快速确定经济节能的电制氢运行参数和换热结构是一个待解决的问题。为了降低制氢成本和减少能量品位浪费,针对3种类型的电解槽,通过调整运行参数、换热器配置结构和热电比,降低设备能耗、回收余热、进行能量梯级利用,从而实现减少运行成本、降低能量输入、减少能量品位浪费的目的。这与畑效率和制氢成本密切相关,为寻找畑效率最大和制氢成本最小的电解水方案,采用双目标优化算法解决同时考虑能量品位和经济性的混合整数非线性优化问题。最后,分析一个场景的案例,表明优化方法不仅可以提高经济性,还有助于提高畑效率。

Under the dual carbon goal, using water electrolysis to produce green hydrogen instead of fossil fuels to produce gray hydrogen is of great signilicance for promoting the construction of a green and low-carbon modern energy system.Due to the differences in grade and economy between input electrical energy and thermal energy, how to quickly determine the economic and energy-saving operating parameters and heat exchange structure of water electrolysis is a problem that needs to be solved. To reduce hydrogen production costs and minimize energy grade waste, three types of water electrolysis hydrogen production schemes are adjusted by adjusting operating parameters ,heat exchanger contiguration structure,and thermoelectric ratio to reduce equipment energy consumption, recover waste heat, and carry out energy cascade utilization, thereby achieving the goal of reducing operating costs , energy input, and energy grade waste. This is closely related to hydrogen production exergy elficiency and cost. To find the water electrolysis solution with the highest exergy efficiency and the lowest hydrogen production cost, a dual obiective optimization algorithm is adopted to solve the mixed integer nonlinear optimization problem that considers both energy grade and economy simultaneously, Finally, analyzing a case study of a scenario demonstrates that optimization methods can not only improve economic efficiency.but also contribute to improving exergy efficiency

作者:

程澄,徐昌哲,孔婵,叶爽,黄伟光

Cheng Cheng,Xu Changzhe, Kong Chan, Ye Shuang,Huang Weiguang

机构地区:

上海科技大学物质科学与技术学院;上海科技大学2060研究院;.中国科学院上海高等研究院;宁波诺丁汉大学理工学院

引用本文:

程澄,徐昌哲,孔婵等,基于电热资源的电解水制氢系统优化研究 [J] .河南师范大学学报(自然科学版),2025.53(4):90-98.(Cheng Cheng,Xu Changzhe, Kong Chan,et al.Research on the optimization of water electrolysis system based on electricity and heat resources [ J ]. Journal of Henan Normal University ( Natural Sciene Edition),2025,53(4):90-98.DO1:10.16366/j.cnki1000-2367.2024.04.04.0001.)

基金:

国家重点研发计划;中国科学院洁净能源创新研究院合作基金项目

关键词:

电解水制氢;换热网络;优化设计;过程系统;系统性能分析

hydrogen production by water electrolysis; heat exchanger network; optimal design; process systems; system performance analysis

分类号:

TK91


基于电热资源的电解水制氢系统优化研究.pdf


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  • Henan Normal University
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