可再生能源2025，Vol.43Issue(4)：427-432,6.
基于努塞尔数的液氢低温四区存储模型研究
Research on cryogenic Four-zone storage model of liquid hydrogen based on Nusselt number
摘要
Abstract
Aiming at the impact of thermal stratification on storage,the Four-zone storage model is proposed and Helmholtz energy equation is used to calculate the thermal properties of hydrogen in the study.According to different experimental conditions,the Nusselt number correlation formula is proposed,and the heat transfer coefficient of condensation surface is modified,and the modified Four-zone model is built.Compared with the experimental data,the error of the modified model is less than 3%,which has higher accuracy.On this basis,the influence of different filling ratio on self-pressurized storage is studied.The result shows that with the increase of filling ratio,the self-pressurized rate of storage tank first slows down and then becomes faster.There is an optimal filling ratio when liquid hydrogen is stored at low temperature,which makes the safe storage time the longest.关键词
液氢/亥姆霍兹能量方程/努塞尔数(Nu)/低温储存Key words
liquid hydrogen/Helmholtz energy equation/Nusselt number/cryogenic storage分类
能源科技引用本文复制引用
徐成佳,张小卿,新家正太..基于努塞尔数的液氢低温四区存储模型研究[J].可再生能源,2025,43(4):427-432,6.基金项目
国家自然科学基金项目(52020105009). （52020105009）
