Performance simulation and theoretical analysis of microgravitydynamic gas-liquid separator

被引：0

作者：

Zhang W. ^{[1
]}

Ke P. ^{[2
]}

机构：

[1] School of Aeronautic Science and Engineering, Beihang University, Beijing

[2] School of Transportation Science and Engineering, Beihang University, Beijing

来源：

Hangkong Xuebao/Acta Aeronautica et Astronautica Sinica | 2016年 / 37卷 / 09期

关键词：

Environmental control and life support; Gas-liquid two phase flow; Gas/liquid separation; Microgravity; Two-fluid model;

D O I：

10.7527/S1000-6893.2015.0354

中图分类号：

学科分类号：

摘要：

The research on the performance of microgravity dynamic gas-liquid separation is of great significance for the design and optimization of gas-liquid separation technology. A theoretical model based on the annular flow and couette flow assumptions is established according to internal structure and flow patterns of dynamic gas-liquid separator. Eulerian two-fluid model with an interface probability approximation method is proposed to describe multi-scale gas-liquid interfaces in the mixed flow caused by the flow pattern transformation, and the multiple references approach is used to deal with the issue of variables interaction between rotating and non-rotating regions. Both theoretical analysis and simulation are applied to studying the quasi-steady state and transient characteristics with dimensionless parameters of dynamic gas-liquid separator. The results show that the results from simulation model and theoretical model have a strong mutual authentication relationship; quasi-steady state pressure ratio and power consumption characteristics provide a basis for parameters design, and energy efficiency ratio determines the optimum operating range; transient characteristics during the separation stage are independent of inlet flow parameters; however, they are dependent of inlet flow parameters and the damping of liquid outlet during transport stage; once the transport pressure is chosen as a sufficient condition, liquid separation efficiency cannot be affected by inlet flow parameters. © 2016, Press of Chinese Journal of Aeronautics. All right reserved.

引用

页码：2646 / 2658

页数：12

共 34 条

[1]

Zhang W.W., Yang C.X., Progress of research on gas/liquid separation technology of regenerative environment control and life support system, Space Medicine and Medical Engineering, 24, 6, pp. 444-450, (2011)

[2]

Liu L.Z., Zhang T.P., Space gas-liquid separation technologies and applications, Vacuum and Cryogenics, 16, 1, pp. 6-11, (2010)

[3]

Bu J.J., Cao J., Yang X.L., Overview of manned spacecraft gas-liquid separation technology, Spacecraft Engineering, 23, 2, pp. 124-131, (2014)

[4]

Wang F., Zhou K.H., Li J.R., Et al., Experimental studies of a water/gas separator using hydrophilic micro-filtration membrane under simulated microgravity, Space Medicine and Medical Engineering, 21, 4, pp. 310-315, (2008)

[5]

Ding L., Wang C., Yang C.X., Et al., Experimental study on separation efficiency of static gas/liquid separator, Space Medicine and Medical Engineering, 24, 5, pp. 345-349, (2011)

[6]

Shang W.J., Gao F., Huang Y.H., Et al., Study on ground-based evaluation methods for dynamic liquid/gas separator performance in microgravity, Space Medicine and Medical Engineering, 26, 3, pp. 174-176, (2013)

[7]

Zhao J.F., Peng C., Li J., Et al., Experimental study on performance of a static water-air two-phase separator aboard reduced gravity airplane, Journal of Engineering Thermophysics, 32, 5, pp. 799-802, (2011)

[8]

Qiu R.H., Wu Z.Q., Gao F., Et al., Experimental study on performance of a space dynamic gas/liquid separator aboard zero-g plane, Manned Spaceflight, 21, 3, pp. 212-216, (2015)

[9]

Hoyt N.C., The performance of passive cyclonic separators in microgravity, (2013)

[10]

Westermann H., Muller R., Design Validation-via Parabolic Flight Tests-of a Condensate Buffer Equalizing a Discontinuous Gas/water Flow between a Condensing Heat Exchanger and a Water Separator, (2006)

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