制冷学报2025，Vol.46Issue(5)：47-57,11.DOI:10.12465/j.issn.0253-4339.2025.05.047
低温储氢系统中三种正-仲催化转化放热量计算方法研究
Research on Three Methods for Calculating Heat Release from Ortho-Para Catalytic Conversion in Cryogenic Hydrogen Storage Systems
摘要
Abstract
In cryogenic hydrogen storage systems,an accurate calculation method for the heat release from different ortho-para hydrogen catalytic conversions is important to determine the load of hydrogen storage systems.The objective of this study is to present a precise calculation method for the conversion heat of ortho-para hydrogen.By establishing a conversion model,the methods of using a smoothing spline curve to fit the experimental data and energy balance calculations are used to derive the released heat in adiabatic conversion multistage converters and the released heat during continuous conversion.The heat release properties of different conversion methods are analyzed in this study.Notably,the heat release amount of continuous conversion is the smallest,that of isothermal conversion is the largest,and the conversion heat of adiabatic conversion is in between,which is related to the number of conversion stages.In addition,a specific method and procedure are programmed to solve the implicit differential formula for continuous conversion.Finally,the calculation results of the different methods are consistent with a maximum deviation of only 0.22％,indicating that the calculations in this study are valid and accurate.关键词
正-仲转化/转化热/储氢技术/数据处理/误差分析Key words
ortho-para conversion/conversion heat/hydrogen storage technology/data processing/error analysis分类
化学化工引用本文复制引用
岳腾龙,许婧煊..低温储氢系统中三种正-仲催化转化放热量计算方法研究[J].制冷学报,2025,46(5):47-57,11.基金项目
本文受上海市2023年度"科技创新行动计划"启明星项目(23YF1428500)资助.(The project was supported by the Shanghai Municipal Science and Technology Commission(No.23YF1428500).) （23YF1428500）
