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首页> 外文期刊>Heat Transfer Engineering >Numerical 2-D Modeling of a Coaxial Scraped Surface Heat Exchanger Versus Experimental Results Under the Laminar Flow Regime
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Numerical 2-D Modeling of a Coaxial Scraped Surface Heat Exchanger Versus Experimental Results Under the Laminar Flow Regime

机译：层流条件下同轴刮板式换热器的二维二维建模与实验结果

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摘要

Scraped surface heat exchangers (SSHEs) provide a versatile solution in the process industry for treating highly viscous fluids that may also contain paniculate matter. Although SSHEs are frequently used in industrial applications, literature on this topic, particularly on the laminar flow regime, is limited. Moreover, due to the specificity of each product, it is difficult to generalize the few data available, and this makes the thermal design of this type of apparatus a critical point. Regarding the numerical approach, several studies based on a two-dimensional (2-D) approximation are available in the open scientific literature, but there is a lack of experimentally validated models. To test the numerical modeling approach, an experimental investigation that focused on the behavior of a coaxial SSHE in the presence of laminar flow was conducted. The appropriateness of the 2-D numerical approach is discussed here. Comparison of the numerical results with the experimentally measured Nusselt number values demonstrates the limits of the 2-D approach in describing the behavior of this type of apparatus.
机译：刮板式换热器（SSHE）在加工业中提供了一种通用的解决方案，用于处理可能还含有颗粒物的高粘度流体。尽管SSHE在工业应用中经常使用，但有关此主题（尤其是关于层流状态）的文献有限。而且，由于每种产品的特殊性，很难归纳出少量的可用数据，这使得这类设备的热设计成为关键。关于数值方法，在开放的科学文献中可以进行基于二维（2-D）近似的多项研究，但是缺少经过实验验证的模型。为了测试数值建模方法，进行了针对层流存在下同轴SSHE行为的实验研究。此处讨论了二维数值方法的适当性。数值结果与实验测量的Nusselt值的比较表明，二维方法在描述此类设备的性能方面存在局限性。

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  • 来源
    《Heat Transfer Engineering》 |2012年第15期|p.1120-1129|共10页
  • 作者

    SARA RAINIERI; FABIO BOZZOLI; MARCO MORDACCI; GIORGIO PAGLIARINI;

  • 作者单位

    Department of Industrial Engineering, University of Parma, Parco Area delle Scienze 181 /A, 43124,Parma, Italy;

    Department of Industrial Engineering, University of Parma, Parma, Italy;

    SITEI PARMA Interdepartmental Centre, University of Parma, Parma, Italy Department of Industrial Engineering, University of Parma, Parma, Italy;

    Department of Industrial Engineering, University of Parma, Parma, Italy;

  • 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);
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