SCI和EI收录∣中国化工学会会刊

›› 2017, Vol. 25 ›› Issue (7): 829-837.DOI: 10.1016/j.cjche.2016.10.024

• Fluid Dynamics and Transport Phenomena •    下一篇

Modeling the pressure drop of wet gas in horizontal pipe

Peining Yu1, Yi Li1, Jing Wei2, Ying Xu3, Tao Zhang3   

  1. 1 Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China;
    2 CFHI Tianjin C-E Electrical Automation Co. Ltd, Tianjin 300457, China;
    3 School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China
  • 收稿日期:2016-07-06 修回日期:2016-10-11 出版日期:2017-07-28 发布日期:2017-08-17
  • 通讯作者: Yi Li,E-mail address:liyi@sz.tsinghua.edu.cn
  • 基金资助:
    Supported by the National Nature Science Foundation of China (61603207 and 61571252) and Tsinghua University Shenzhen Graduate School Grant (050100001).

Modeling the pressure drop of wet gas in horizontal pipe

Peining Yu1, Yi Li1, Jing Wei2, Ying Xu3, Tao Zhang3   

  1. 1 Graduate School at Shenzhen, Tsinghua University, Shenzhen 518055, China;
    2 CFHI Tianjin C-E Electrical Automation Co. Ltd, Tianjin 300457, China;
    3 School of Electrical Engineering and Automation, Tianjin University, Tianjin 300072, China
  • Received:2016-07-06 Revised:2016-10-11 Online:2017-07-28 Published:2017-08-17
  • Supported by:
    Supported by the National Nature Science Foundation of China (61603207 and 61571252) and Tsinghua University Shenzhen Graduate School Grant (050100001).

摘要: A model for gas-liquid annular and stratified flow through a horizontal pipe is investigated, using the two-phase hydrokinetics theory. Taking into consideration the flow factors including the void fraction, the friction between the two phases and the entrainment in the gas core, the one-dimensional momentum equation for gas has been solved. The differential pressure of the wet gas between the two tapings in the straight pipe has been modeled in the pressure range of 0.1-0.8 MPa. In addition a more objective iteration approach to determine the local void fraction is proposed. Compared with the experimental data, more than 83% deviation of the test data distributed evenly within the band of ±10%. Since the model is less dependent on the specific empirical apparatus and data, it forms the foundation for further establishing a flow measurement model of wet gas which will produce fewer biases in results when it is extrapolated.

关键词: Gas-liquid flow, Pressure drop, Hydrodynamics, Model

Abstract: A model for gas-liquid annular and stratified flow through a horizontal pipe is investigated, using the two-phase hydrokinetics theory. Taking into consideration the flow factors including the void fraction, the friction between the two phases and the entrainment in the gas core, the one-dimensional momentum equation for gas has been solved. The differential pressure of the wet gas between the two tapings in the straight pipe has been modeled in the pressure range of 0.1-0.8 MPa. In addition a more objective iteration approach to determine the local void fraction is proposed. Compared with the experimental data, more than 83% deviation of the test data distributed evenly within the band of ±10%. Since the model is less dependent on the specific empirical apparatus and data, it forms the foundation for further establishing a flow measurement model of wet gas which will produce fewer biases in results when it is extrapolated.

Key words: Gas-liquid flow, Pressure drop, Hydrodynamics, Model