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首页> 外文期刊>Journal of Heat Transfer >Enhanced Subcooled Flow Boiling Heat Transfer in Microchannel with Piranha Pin Fin
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Enhanced Subcooled Flow Boiling Heat Transfer in Microchannel with Piranha Pin Fin

机译：具有食人鱼针鳍的微通道中增强的过冷流沸腾换热

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摘要

An experimental study on subcooled flow boiling with engineering fluid HFE-7000 in a microchannel fitted with piranha pin fins (PPFs) is presented. Heat fluxes of up to 735 W/cm2 were achieved and mass fluxes ranged from 618 kg/m2s to 2569 kg/m2 s. It was found that the flow boiling heat transfer was significantly enhanced with PPFs. The heat transfer coefficient with flow boiling was double the corresponding single-phase flow. Correlations for two-phase heat transfer coefficient and pressure drop in the nucleate flow boiling regime were developed based on the boiling, Weber, and Jakob numbers. The onset of nucleate boiling (ONB) and the critical heat flux (CHF) conditions were determined through visualization and was typically initiated from the last row of fins where temperatures were highest and flow rates lowest.
机译：提出了在装有食人鱼针状翅片（PPF）的微通道中用工程流体HFE-7000进行过冷流沸腾的实验研究。实现了高达735 W / cm2的热通量，质量通量范围从618 kg / m2s到2569 kg / m2 s。发现PPF显着增强了流动沸腾传热。流动沸腾的传热系数是相应单相流动的两倍。基于沸腾数，韦伯数和雅各布数，建立了核流沸腾状态下两相传热系数和压降的相关性。核沸腾（ONB）和临界热通量（CHF）条件的发生是通过可视化确定的，通常是从温度最高而流速最低的最后一排散热片开始的。

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  • 来源
    《Journal of Heat Transfer》 |2017年第11期|112402.1-112402.13|共13页
  • 作者

    Yu Xiangfei; Woodcock Corey; Wang Yingying; Plawsky Joel L.; Peles Yoav P.;

  • 作者单位

    Mechanical, Aerospace, and Nuclear Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, United States;

    Mechanical, Aerospace, and Nuclear Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, United States;

    Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL, United States;

    Chemical Engineering Department, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, United States;

    Department of Mechanical and Aerospace Engineering, University of Central Florida, 4000 Central Florida Boulevard, Orlando, FL, 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
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