高温氢工质热物理性质计算分析

氢工质在新能源与动力、航天推进、化工材料等领域有着广泛应用。通过开展高温氢工质热力学与输运性质研究，建立了原子态氢、分子态氢、热解平衡态氢的热物理性质计算模型，开发了热物性计算程序Prop_H_H2，适用范围为温度100~3 500 K、压力104~5×107 Pa 。验证表明，Prop_H_H2在适用范围内计算氢工质的物性参数合理可靠，在温度200~3 000 K、压力104~107 Pa范围内，程序预测值更加准确，相对偏差在±5%左右。本研究可为氢工质相关的航天推进、应用物理学、能源动力等行业的科研和应用提供支持借鉴。

Analysis of Thermophysical Property of High Temperature Hydrogen

Hydrogen is applied extensively in new energy and power, aerospace propulsion, chemical materials and other fields. Based on the study of thermodynamics and transport properties of high temperature hydrogen, the thermophysical properties models of atomic, molecular and dissociated hydrogen were established, and the calculation code Prop_H_H2 was developed in the temperature of 100 3 500 K and the pressure of 104 5×107 Pa. Code verification shows that the thermophysical properties of hydrogen calculated by Prop_H_H2 are reasonable and reliable. The predicted value of hydrogen is more accurate for the temperature of 200 3 000 K and the pressure of 104 107 Pa while the relative deviation was about ±5%. This study can provide a reference for the research and application of hydrogen in aerospace propulsion, applied physics, energy and power industries.