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A novel model for calculating the melting process of composite phase change materials

机译：一种计算复合相变材料熔化过程的新型模型

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摘要

Phase change materials are widely used in the field of energy storage. Phase change materials for energy storage are mostly composite materials. There is no fixed phase transition temperature, but a phase transition temperature zone. How to describe the melting characteristics of composites in the temperature range of transformation is a key. This paper summarizes the problems of various models in the field of solid-liquid phase transition. The relationship between the latent heat and liquid phase ratio with temperature is determined. Based on the traditional enthalpy-porous medium model, a phase change heat-porous medium model suitable for composite melting is established. The correctness of the model is verified by visual experiment. This model fully considers the non-linear relationship between the latent heat, the liquid phase ratio and the transformation temperature, and can describe the melting behavior of composite phase change materials more accurately.
机译：相变材料广泛用于储能领域。用于储能材料的相变材料主要是复合材料。没有固定相转变温度，但相变温度区。如何描述转化温度范围内复合材料的熔化特性是钥匙。本文总结了固液相转变领域各种模型的问题。确定潜热和液相比与温度之间的关系。基于传统的焓多孔介质模型，建立了适用于复合熔融的相变热多孔介质模型。通过视觉实验验证了模型的正确性。该模型充分考虑了潜热，液相比和转化温度之间的非线性关系，并且可以更准确地描述复合相变材料的熔化行为。

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  • 来源
    《Journal of Energy Storage》 |2020年第8期|101504.1-101504.7|共7页
  • 作者

    Li Xiaoqing; Yu Peng; Liu Renqiang; Jiang Hui; Liu Xiaoyan;

  • 作者单位

    Northeast Petr Univ Sch Civil & Engn Daqing 163318 Peoples R China|Heilongjiang Key Lab Disaster Prevent Mitigat & P Daqing 163318 Peoples R China;

    Northeast Petr Univ Sch Civil & Engn Daqing 163318 Peoples R China;

    Daqing Oilfield Co Explorat & Dev Res Inst Daqing 163712 Heilongjiang Peoples R China;

    Northeast Petr Univ Sch Civil & Engn Daqing 163318 Peoples R China;

    Heilongjiang Key Lab Disaster Prevent Mitigat & P Daqing 163318 Peoples R China;

  • 收录信息
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Phase change; Melting; Mathematical model; Composite;

    机译：相变;熔化;数学模型;复合材料;

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