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首页> 外文期刊>International Journal of Heat and Mass Transfer >Coiled-tube heat exchanger for high-pressure metal hydride hydrogen storage systems - Part 2. Computational model
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Coiled-tube heat exchanger for high-pressure metal hydride hydrogen storage systems - Part 2. Computational model

机译：高压金属氢化物储氢系统用盘管式换热器-第2部分。计算模型

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摘要

This second part of a two-part study presents a transient, three-dimensional numerical model for a high-pressure metal hydride (HPMH) hydrogen storage system that is cooled by a coiled-tube heat exchanger. The model uses the same geometry examined in the first part of the study and its predictions are compared to experimental results also discussed in the first part. The model involves solving coupled heat diffusion and hydriding reaction equations for Ti].,CrMn. These equations are solved to determine the spatial distribution of hydride temperature as a function of time over the entire duration of the hydriding reaction, which is shown to agree favorably with the experimental data. The model also serves as an effective means for tracking the detailed temporal variations of the heat exchanger's key performance parameters for different hydride locations relative to the coolant tube. These variations can aid in determining optimum placement of the coolant tube relative the hydride powder. Like the experimental study, the model proves that coolant temperature has the greatest influence on the time needed to complete the hydriding reaction.
机译：由两部分组成的研究的第二部分介绍了高压金属氢化物（HPMH）储氢系统的瞬态三维数值模型，该系统由盘管式热交换器冷却。该模型使用在研究的第一部分中检查过的相同几何形状，并将其预测与也在第一部分中讨论的实验结果进行比较。该模型涉及求解Ti，CrMn的耦合的热扩散和氢化反应方程。求解这些方程式以确定氢化物温度在整个氢化反应过程中随时间变化的空间分布，这表明与实验数据吻合良好。该模型还用作跟踪热交换器相对于冷却剂管的不同氢化物位置的关键性能参数的详细时间变化的有效手段。这些变化可以帮助确定冷却剂管相对于氢化物粉末的最佳放置。像实验研究一样，该模型证明冷却液温度对完成氢化反应所需的时间影响最大​​。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2012年第6期|p.1796-1806|共11页
  • 作者

    Milan Visaria; Issam Mudawar;

  • 作者单位

    Hydrogen Systems Laboratory (HSL) and Boiling and Two-Phase Flow Laboratory (BTPFL), School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, United States;

    Hydrogen Systems Laboratory (HSL) and Boiling and Two-Phase Flow Laboratory (BTPFL), School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, United States;

  • 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

    fuel cells; hydrogen storage; heat exchangers;

    机译：燃料电池;储氢换热器;

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