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Experimental validation of a CFD model for tubes in a phase change thermal energy storage system

机译：相变热能存储系统中管道CFD模型的实验验证

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摘要

A computational fluid dynamic (CFD) model for tubes in a phase change thermal energy storage system has been developed and validated with experimental results. The heat transfer fluid (HTF) flows in tubes which are configured in a unique arrangement during the charging and discharging processes. Water was used as the phase change material (PCM) which was contained in a cylindrical tank with four tubes coiled inside it. Experiments were conducted for both freezing and melting processes. A three-dimensional CFD model using Ansys code was developed and validated with experimental results. This model endeavoured to describe both the freezing and melting processes of the PCM. The inlet and outlet HTF temperatures as well as nine temperature locations in the PCM were compared with the CFD results. The average effectiveness as well as the duration of the phase change process of each experimental point was also compared with results from the CFD. From this study, it was concluded that the CFD model developed can accurately predict the behaviour of the thermal storage system during charging and discharging. The paper gives details of the CFD model and compares results from the model and experiments.
机译：已经开发了相变热能存储系统中的管道计算流体动力学（CFD）模型，并通过实验结果进行了验证。传热流体（HTF）在管子中流动，这些管子在充放电过程中以独特的方式配置。将水用作相变材料（PCM），将其包含在一个圆柱形容器中，内部缠绕有四个管。进行了冷冻和熔化过程的实验。开发了使用Ansys代码的三维CFD模型，并通过实验结果进行了验证。该模型致力于描述PCM的冻结和熔化过程。将入口和出口HTF温度以及PCM中的9个温度位置与CFD结果进行了比较。每个实验点的平均有效性以及相变过程的持续时间也与CFD结果进行了比较。从这项研究得出的结论是，开发的CFD模型可以准确地预测蓄热系统在充电和放电期间的行为。本文详细介绍了CFD模型，并比较了模型和实验的结果。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2012年第4期|p.574-585|共12页
  • 作者

    N.H.S. Tay; F. Bruno; M. Belusko;

  • 作者单位

    Barbara Hardy Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia;

    Barbara Hardy Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia;

    Barbara Hardy Institute, University of South Australia, Mawson Lakes Boulevard, Mawson Lakes, South Australia 5095, Australia;

  • 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

    phase change material; cold storage tank; tube in tank; computational fluid dynamic;

    机译：相变材料;冷储罐;罐中管;计算流体动力学;

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