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首页> 外文会议>10th international conference on phase change materials and slurries for refrigeration and air conditioning >STUDY ON STRATIFICATION MECHANISM AND ITS VARIATION REGULARITY OF ICE SLURRY FLOW IN HORIZONTAL PIPE
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STUDY ON STRATIFICATION MECHANISM AND ITS VARIATION REGULARITY OF ICE SLURRY FLOW IN HORIZONTAL PIPE

机译：水平管冰浆流分层机理及其变化规律研究

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摘要

Ice blockage is a severe problem in ice slurry transportation arising from stratification and aggregationrnof ice slurry flow, and the beginning of stratification is marked by critical deposition velocity.rnIn this study, the flow pattern, maximum aggregation concentration and determination method ofrncritical deposition velocity are introduced. Forces acting on ice slurry are analyzed from both macrornand micro perspective so as to clarify stratification mechanism. Then this paper focuses on numericalrnsimulation of critical deposition velocity of ice slurry flow in horizontal pipes. Results of numericalrnsimulation are compared with previous experimental data with the purpose of validatingrneffectiveness of the model. The influences of IPF, ice particle diameter, concentration of freezingrnpoint depressant and pipe diameter on critical deposition velocity are investigated, respectively. Thernsimulation results provide basis for predicting critical deposition velocity and drawing detailed flowrnpattern map of ice slurry flow, and is also of remarkable significance for guiding safty design andrnoperation of ice slurry system.
机译：结冰是分层和凝结冰浆流引起的冰浆运输中的一个严重问题，分层的开始以临界沉积速度为标志。 。从宏观和微观两个角度分析了作用在冰浆上的力，以阐明分层机理。然后，本文重点研究了水平管道中冰浆流的临界沉积速度的数值模拟。为了验证模型的有效性，将数值模拟的结果与先前的实验数据进行了比较。分别研究了IPF，冰粒径，降凝剂浓度和管径对临界沉积速度的影响。仿真结果为预测临界沉积速度和绘制详细的冰浆流模型提供了依据，对指导冰浆系统的安全设计和运行具有重要意义。

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  • 会议地点 Kobe(JP)
  • 作者

    QIQI TIAN; GUOGENG HE; HONG WANG; DEHUA CAI;

  • 作者单位

    School of Energy and Power Engineering, Huazhong University of Science and Technology,430074, Wuhan, China;

    School of Energy and Power Engineering, Huazhong University of Science and Technology,430074, Wuhan, China Tel: 86-027-87542818;

    Email:gghe@mail.hust.edu.cn;

    School of Energy and Power Engineering, Huazhong University of Science and Technology,430074, Wuhan, China;

    School of Energy and Power Engineering, Huazhong University of Science and Technology,430074, Wuhan, China;

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