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首页> 外文期刊>International Journal of Heat and Mass Transfer >Structured intra-tubular catalyst carrier for highly exothermic processes: modelling and CFD study
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Structured intra-tubular catalyst carrier for highly exothermic processes: modelling and CFD study

机译：用于高度放热过程的结构内管状催化剂载体：建模和CFD研究

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摘要

Numerical studies were conducted on heat transfer in tubes filled with structured catalyst carriers consisting of rosettes, rings and discs in different arrangements. The distribution of gas velocity and temperature were determined on the basis of computational fluid dynamics (CFD tool FLUENT®). The key problem of the research was heat transfer intensification to the inner tube wall. The Reynolds number range from 800 to 5000 was numerically examined. It was shown that the arrangement of the structure elements has a significant influence on heat transfer intensity. The best heat transfer was achieved for the composition of the U-shaped ring with one rosette, while the worst was for the ring (or disc) with two rosettes. The CFD results were in reasonable agreement with the experimental data. The application of the rather simple Generalised Leveque Equation (GLE) secured quite good accuracy with respect to experiments, comparable to CFD, and provided valuable design tips.
机译：对填充有由玫瑰花丝，环和圆盘组成的结构催化剂载体的管中的热传递进行了数值研究。 基于计算流体动力学（CFD工具FLUENT®）确定气体速度和温度的分布。 该研究的关键问题是内管壁的热传递强化。 雷诺数范围从800到5000进行了数值检查。 结果表明，结构元件的布置对传热强度具有显着影响。 为用一个莲座丛的U形环的组成实现了最佳的热传递，而最坏的情况是具有两个玫瑰花的环（或盘）。 CFD结果与实验数据合理一致。 相当简单的广义滑动式等式（GLE）的应用在与CFD相当的实验中获得了非常好的准确性，并提供了有价值的设计提示。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2021年第8期|121357.1-121357.13|共13页
  • 作者

    M. Iwaniszyn; A. Gancarczyk; A. Gaszczak; A. Kolodziej;

  • 作者单位

    Institute of Chemical Engineering Polish Academy of Sciences Baltycka 5 44-100 Gliwice Poland;

    Institute of Chemical Engineering Polish Academy of Sciences Baltycka 5 44-100 Gliwice Poland;

    Institute of Chemical Engineering Polish Academy of Sciences Baltycka 5 44-100 Gliwice Poland;

    Institute of Chemical Engineering Polish Academy of Sciences Baltycka 5 44-100 Gliwice Poland Faculty of Civil Engineering Opole University of Technology Katowicka 48 45-061 Opole Poland;

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

    Heat transfer; Flow resistance; Structured reactor; CFD modelling;

    机译：传播热量;流动阻力;结构化反应器;CFD建模;

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