中国舰船研究2024，Vol.19Issue(4)：82-91,10.DOI:10.19693/j.issn.1673-3185.03658
面向海上风电的碱性电解水制氢系统热力学分析与优化设计
Thermodynamic analysis and optimization design of alkaline water electrolysis hydrogen production system for offshore wind power
摘要
Abstract
[Objectives]In order to fully leverage electricity and seawater resources,this paper carries out the thermodynamic analysis and optimization design of an alkaline water electrolysis(AWE)hydrogen pro-duction system for offshore wind power.The focus comprises the impacts of operating pressure,temperature and lye flow rate on the operational characteristics of the system.[Methods]Thermodynamic,kinetic and flux balance analyses are carried out to develop a thermodynamic equilibrium model for hydrogen production by alkaline water electrolysis using Aspen Plus software,which is then validated in comparison with the exper-imental results.[Results]The optimum working pressure and temperature of the alkaline water electrolysis hydrogen production system are 9 bar and 70 ℃ respectively,and the optimum lye flow rate is 1 600 t/h.The system energy loss and exergy loss increase with the increase of input current density.When the alkaline wa-ter electrolysis input current density reaches 3 000 A/m2,the system energy efficiency and exergetic efficiency are 63.58%and 57.27%respectively,and the system energy loss accounts for 26%of the total energy input,of which the exergy loss of the electrolyzer is the highest,accounting for 93.39%of the total exergy loss of the system.[Conclusions]Through this parametric optimization method,a suitable range of operating paramet-ers can be obtained,providing useful references for the selection of offshore wind power hydrogen production parameters.关键词
海上风电/碱性电解水制氢/热力学/参数优化Key words
offshore wind power/alkaline water electrolysis hydrogen production/thermodynamic perform-ance/parametric optimization分类
交通工程引用本文复制引用
渠秀媛,李青山,余潜跃,孙立..面向海上风电的碱性电解水制氢系统热力学分析与优化设计[J].中国舰船研究,2024,19(4):82-91,10.基金项目
江苏省科技厅"双碳"项目资助(BE2022040) （BE2022040）
南京市科技局科技发展计划资助项目(202211007) （202211007）
