3D Numerical Simulation on Mixing Process in Ducts of Rotary Pressure Exchanger
Since there is no physical barrier between the brine and seawater streams in the rotor ducts of rotary Pressure:Exchanger (RPE),the degree of mixing between these streams has become an important criterion of the performance of RPE.In this paper,a 3D numerical simulation mode of a whole RPE is presented,followed by an illustration and discussion of the computational results to analyze the relationship between the rotation speed,flow rate and fluid mixing.It is demonstrated that under certain conditions,a stable liquid plug can be formed in RPE channels.It is clearly seen that movement of liquid piston separates the fresh water and brine to prevent from over-mixing with each other,Moreover,the mixing in RPE was controlled by the operating conditions.It was found that the volume mixing ratio rises with increasement of flow rate and decreasement of rotation speed.
numerical simulation mixing rotary pressure exchanger liquid piston
Liu Yu Zhou Yihui Bi Mingshu
School of Chemical Machinery, Dalian University of Technology, Dalian, China, 116024
国内会议
青岛
英文
459-464
2011-06-01（万方平台首次上网日期，不代表论文的发表时间）