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Flooding Diagram For Multi-phase Flow In A Moving Bed

机译:移动床多相流驱图

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摘要

Flooding phenomena typically represent liquid overflow and unstable flow behaviour in a gas-liquid counter-current flow within a fixed bed. Understanding the flooding phenomena in a multi-phase flow system is important to process design and optimization. This paper presents a study of the flooding phenomena in two systems: gas-liquid flow and gas-liquid-powder flow in moving beds. Experiments are conducted in a one-dimensional column involving upward gas and powder flow and downward solids and liquid flow. Based on the experimental findings, a correlation is formulated which considers the effects of particle moving and the presence of powder phase. The correlation can be used to generate flooding diagrams to depict flooding and non-flooding regions for multi-phase flow in a moving bed.
机译:溢流现象通常表示固定床内的气液逆流中的液体溢出和不稳定的流动行为。了解多相流系统中的水淹现象对于过程设计和优化很重要。本文介绍了两个系统中的驱油现象:移动床中的气液流和气液粉流。实验在一维列中进行,涉及向上的气体和粉末流以及向下的固体和液体流。基于实验结果,制定了一种相关性,其中考虑了颗粒移动的影响和粉末相的存在。该相关性可用于生成注水图,以描绘移动床中多相流的注水区域和非注水区域。

著录项

  • 来源
    《ISIJ international》 |2009年第2期|189-194|共6页
  • 作者单位

    Laboratory for Simulation and Modelling of Particulate Systems, School of Materials Science and Engineering, The University of New South Wales, Sydney, NSW 2052, Australia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    flooding diagram; multi-phase flow; packed beds;

    机译:驱图;多相流;填料床;

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