【摘要】 以0.151 m~3的低温高压储罐为研究对象,构建了可描述低温高压氢存储过程温度和压力动态特性的热力分析模型,并与实验数据进行了对比分析。结果显示,该模型在实验工况下预测的温度最大偏差为2.8%,压力的最大偏差为11.3%,证明了该模型的有效性。此外,基于热力学分析方法研究了不同漏热和初始正氢含量下低温高压氢存储期内温度和压力的动态特性,揭示了低温高压氢存储过程不同阶段的主要影响因素,研究结果可为延长低温高压氢存储时间提供理论指导。更多还原

【Abstract】 A thermodynamic model is developed to describe the transient behaviors of temperature and pressure in a cryo-compressed hydrogen （CcH₂）tank with a volume of 0.151 m³.The model is validated from the experimental data and can achieve a maximum deviation of 2.8%and11.3%in predicting the temperature and pressure rise inside the tank.Benefiting from the model,this paper also presents a thermodynamic analysis of the pressurization rate during the no-vented storage period of CcH₂with different heat leaks and initial concentrations of ortho-hydrogen.Dominant parameters influencing the pressurization rate at different stages of the no-vented storage process are investigated and discussed to provide guide extending the dormancy period time o CcH₂.更多还原