R1234ze(E)气液相平衡的分子动力学模拟研究  

Molecular dynamics simulation study on vapour-liquid equilibrium of R1234ze(E)

作　　者：文承泽 戴源德[1] Wen Chengze;Dai Yuande(School of Advanced Manufacturing,Nanchang University,Nanchang 330031,China)

机构地区：[1]南昌大学先进制造学院,南昌330031

出　　处：《低温与超导》2023年第11期61-67,共7页Cryogenics and Superconductivity

基　　金：国家自然科学基金(22068024)资助。

摘　　要：本文采用分子动力学模拟的方法研究了R1234ze(E)在288.15 K~338.15 K温度范围内6个不同温度点达到气液相平衡时的压强、气液相密度分布及气液界面性质。结果表明,R1234ze(E)的饱和压力与气相密度随温度的升高而增大,液相密度随饱和温度的升高而减小;气液界面厚度随饱和温度的升高而增加,说明高温状态下气、液相变的连续性要好于低温状态。In this paper,molecular dynamics simulation was used to study the pressure,vapour-liquid density distribution and vapour-liquid interface properties of R1234ze(E)when it reached vapour-liquid equilibrium at six different temperature points from 288.15 K to 338.15 K.The results show that the saturation pressure and vapour phase density of R1234ze(E)in-crease with increasing temperature,while the liquid phase density decreases with increasing saturation temperature.The thickness of the vapour-liquid interface increases with the increase in saturation temperature,indicating that the continuity of the vapour-liquid phase transition is better at high temperatures than at low temperatures.

关 键 词：环保工质 R1234ze(E) 气液相平衡 分子动力学 模拟 

分 类 号：TB612[一般工业技术—制冷工程]