采用常规状态方程计算氦-3热力性质的可行性研究

3He作为一种特殊的工质在低温工程、基础物理学和空间技术等领域获得重要应用,这些应用需要可靠的3He热力学性质数据。但是目前没有适用于3He的宽范围状态方程。不仅如此,而且有关的热物性实验数据也十分稀缺,这给应用3He的研究人员带来了困难。本文基于全面收集和整理有关3He的各类数据,通过编写计算机程序,考察了五种常用的状态方程(理想气体状态方程,范德瓦尔方程,RK方程,RKS方程和PR方程)用于计算3He在4K~100K温区定压下比容-温度关系的可行性,并将计算结果与实验数据进行了比较。这些比较结果将为3He状态方程的研究提供有价值的参考。

Feasibility research on thermodynamic property of 3He by normal state equations

3He,as a special substance,is now having more and more applications in the field of cryogenic engineering,fundamental physics and space technology,etc.These applications need reliable thermodynamic data of 3He.However,there are not any state equations in wide range for 3He so far.In addition,its thermodynamic data are extremely shortage,which brings inconvenience for researchers on 3He.On the base of collecting and picking up different kinds of data of 3He,as well as writing down computer programs,this paper checks the feasibility of V-T relationship using five normal state equations from 4K ～100K,and compares the calculational data with the experimental data,which make valuable reference for the research of the state equation of 3He.