Journal of Guangdong University of Technology ›› 2020, Vol. 37 ›› Issue (05): 105-110.doi: 10.12052/gdutxb.190150

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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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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

CLC Number: 

  • O359.1
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