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首页> 外文期刊>Journal of enhanced heat transfer >COMPARISON ON ENHANCED PHASE CHANGE HEAT TRANSFER OF LOW MELTING POINT METAL MELTING USING DIFFERENT HEATING METHODS
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COMPARISON ON ENHANCED PHASE CHANGE HEAT TRANSFER OF LOW MELTING POINT METAL MELTING USING DIFFERENT HEATING METHODS

机译：利用不同加热方法对低熔点金属熔化增强相变传热的比较

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摘要

The metal melting performances with different heating methods comprising external surface heating (ESH), internal surface heating (ISH) and uniform heat generation (UHG) are compared via theoretical analysis and numerical investigation. The comparison was conducted in a cylinder enclosure with gallium as the phase change material, and based on the same metal volume and heat power. Firstly, three metal melting models were established to predict the melting behavior; the temperature distribution equation was theoretically derived, which shows satisfactory agreement with the simulation results. A series of numerical investigations were performed and evaluated from the perspective of temperature distribution, velocity distribution, melting time and phase front evolution. Results show that compared to the ESH and ISH, UHG has the lowest operation temperature. UHG is strongly recommended if there is no electric insulation requirement. In addition, the corresponding dimensionless correlations are also obtained. The three melting models are comprehensively analyzed and recommended for different engineering fields. This study provides an insight into the metal melting performance comparisons of ESH, ISH, and UHG, which has a guiding significance to achieve fast metal melting in practical liquid metal thermal management systems.
机译：通过理论分析和数值研究比较了具有外表加热（ESH），内表面加热（ISH）和均匀的发热（UHG）的不同加热方法的金属熔化性能。将比较在汽缸外壳中，作为相变材料，并基于相同的金属体积和热功率。首先，建立了三种金属熔化模型以预测熔化行为;理论上，温度分布方程是衍生的，这与模拟结果显示了令人满意的一致性。从温度分布，速度分布，熔化时间和相位前进化的角度进行并评估并评估一系列数值研究。结果表明，与ESH和ISH相比，UHG的操作温度最低。如果没有电绝缘要求，强烈建议使用UHG。另外，还获得了相应的无量纲相关性。三种熔化模型被全面分析和推荐用于不同的工程领域。本研究提供了对ESH，ISH和UHG的金属熔化性能比较的洞察，这具有在实际液态金属热管理系统中实现快速金属熔化的指导意义。

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  • 来源
    《Journal of enhanced heat transfer》 |2019年第2期|179-194|共16页
  • 作者

    Zhang Xu-Dong; Gao Jian-Ye; Zhang Peng-Ju; Liu Jing;

  • 作者单位

    Chinese Acad Sci Tech Inst Phys & Chem Beijing Key Lab Cryobiomed Engn Beijing 100190 Peoples R China|Chinese Acad Sci Tech Inst Phys & Chem Key Lab Cryogen Beijing 100190 Peoples R China|Univ Chinese Acad Sci Sch Future Technol Beijing 100039 Peoples R China;

    Chinese Acad Sci Tech Inst Phys & Chem Beijing Key Lab Cryobiomed Engn Beijing 100190 Peoples R China|Chinese Acad Sci Tech Inst Phys & Chem Key Lab Cryogen Beijing 100190 Peoples R China;

    Chinese Acad Sci Tech Inst Phys & Chem Beijing Key Lab Cryobiomed Engn Beijing 100190 Peoples R China|Chinese Acad Sci Tech Inst Phys & Chem Key Lab Cryogen Beijing 100190 Peoples R China;

    Chinese Acad Sci Tech Inst Phys & Chem Beijing Key Lab Cryobiomed Engn Beijing 100190 Peoples R China|Chinese Acad Sci Tech Inst Phys & Chem Key Lab Cryogen Beijing 100190 Peoples R China|Univ Chinese Acad Sci Sch Future Technol Beijing 100039 Peoples R China|Tsinghua Univ Sch Med Dept Biomed Engn Beijing 100084 Peoples R China;

  • 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

    metal melting; liquid metal; heat generation; melting performance; dimensionless correlation;

    机译：金属熔化;液态金属;发热;熔化性能;无量纲相关性;

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