model Solid_H2_storage2
// 导入具体的氢气介质包
//import Modelica.Media.Interfaces.PartialMedium;
// 使用具体的氢气介质包替换接口包
//import SI = Modelica.SIunits;
/* 介质 */
replaceable package Medium = Modelica.Media.IdealGases.SingleGases.H2
constrainedby Modelica.Media.Interfaces.PartialPureSubstance"介质"
annotation(choicesAllMatching = true, Protection(access = Access.nonPackageDuplicate));

// 定义压力、比焓和摩尔分数
parameter Real p = 40e5; // 压力，单位：Pa，这里假设压力为 40 bar 转换为 Pa
parameter Real h = 3000; // 比焓，单位：J/kg，这里假设一个比焓值
Medium.ThermodynamicState state_ph “热力状态(ph)”;
Real Xi[1] = {1}; // 氢气的摩尔分数，因为是纯氢气，所以为 1
annotation(__MWORKS);

equation
// 调用 setState_phX 函数设置状态
//ThermalState = Medium.setState_phX(p, h, Xi);
state_ph = Medium.setState_phX(p, h);
end Solid_H2_storage2;