广东工业大学学报 ›› 2020, Vol. 37 ›› Issue (05): 105-110.doi: 10.12052/gdutxb.190150

• 综合研究 • 上一篇    

分液联箱内有机工质气液分离过程数值模拟及对比研究

李逸帆, 黄锟腾, 罗向龙, 杨智, 陈健勇, 梁颖宗, 陈颖   

  1. 广东工业大学 材料与能源学院，广东 广州 510006
  • 收稿日期:2019-12-05 出版日期:2020-09-17 发布日期:2020-09-17
  • 通信作者: 罗向龙(1978-)，男，教授，博士生导师，主要研究方向为热力系统分析优化、工业节能、过程能量系统集成建模，E-mail：lxl-dte@gdut.edu.cn E-mail:lxl-dte@gdut.edu.cn
  • 作者简介:李逸帆(1994-)，男，硕士研究生，主要研究方向为两相流仿真及气液分离结构优化
  • 基金资助:
    国家自然科学基金资助面上项目(51876043)

Numerical Simulation and Comparative Study of Liquid-vapor Separation of Organic Working Fluid in Liquid-Separation Headers

Li Yi-fan, Huang Kun-teng, Luo Xiang-long, Yang Zhi, Chen Jian-yong, Liang Ying-zong, Chen Ying   

  1. School of Material and Energy, Guangdong University of Technology, Guangzhou 510006, China
  • Received:2019-12-05 Online:2020-09-17 Published:2020-09-17

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摘要： 为获得不同工质对分液联箱内气液分离过程的影响作用，以相同的进口流量和进口干度作为对比基准开展数值模拟研究。基于VOF （Volume of Fluid）多相流模型，模拟6种工质气液分离过程，物性变量为密度、黏度和表面张力。结果表明，受液气密度比的影响，工质的气液分离状态会发生转变，R134a气液分离性能最好；而根据对工质环保性能的要求，R1234ze （E）对R134a具有良好的可替代性，并给出了其他工质提高气液分离性能的优化方向。

关键词: 气液分离, 工质, 液气密度比

Abstract: In order to obtain the influence of different working fluids on the liquid-vapor separation in the liquid separation header, a numerical simulation was carried out with the same mass flow rate and vapor quality as the comparison benchmark. Based on the VOF(Volume of Fluid) multiphase model, the liquid-vapor separation among six working fluids was simulated. The property variables were density, viscosity and surface tension. The result demonstrated that the liquid-vapor separation state will change under the influence of liquid vapor density ration. In addition, it was found that R134a had the best performance in liquid-vapor separation, while R1234ze(E) could replace R134a well. The optimization direction of other working fluid to improve the performance of liquid-vapor separation was also given.

Key words: liquid-vapor separation, working fluid, liquid-vapor density ratio

中图分类号: 

  • O359.1
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