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首页> 外文期刊>International Journal of Heat and Mass Transfer >Numerical and experimental research on the heat transfer of seawater desalination with liquid film outside elliptical tube
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Numerical and experimental research on the heat transfer of seawater desalination with liquid film outside elliptical tube

机译：椭圆管外液膜海水淡化传热的数值与实验研究

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摘要

The falling film evaporation outside the elliptical tube was studied and compared with the circular tube for the design and improvement of seawater desalination system using the method of theoretical analysis, CFD numerical simulation and experiments. The experiment shows that the thickness of liquid film outside elliptical tube of E (ellipticity) = 1.5 obtained from the simulation agrees well with the experimental data and the maximum deviation is within 8%. This fully illustrates that the numerical model is correct and that analog calculation is feasible. The experimental results also manifested that heat transfer coefficient of the system with E = 1.5 elliptical tubes increases by 20-22% compared with circular tubes. This study testified that it is superiority and feasibility that elliptical tubes were applied to falling-film evaporation and seawater desalination of horizontal tubes. The exploratory researches will be conducted for promoting the design and application of falling film evaporation with elliptical tubes in the seawater desalination system.
机译：利用理论分析，CFD数值模拟和实验方法，研究了椭圆管外部的降膜蒸发情况，并与圆形管进行了比较，以设计和改进海水淡化系统。实验表明，通过仿真得到的椭圆管外液膜厚度E（椭圆率）= 1.5与实验数据吻合良好，最大偏差在8％以内。这充分说明了数值模型是正确的，并且模拟计算是可行的。实验结果还表明，与圆形管相比，E = 1.5椭圆管的系统的传热系数提高了20-22％。这项研究证明了将椭圆管应用于水平管的降膜蒸发和海水淡化具有优越性和可行性。将进行探索性研究，以促进在海水淡化系统中使用椭圆管的降膜蒸发的设计和应用。

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  • 来源
  • 作者

    Qi Chun-hua; Feng Hou-jun; Lv Hong-qing; Miao Chao;

  • 作者单位

    Institute of Seawater Desalination & Multipurpose Utilization, SOA, Tianjin 300192, PR China;

    Institute of Seawater Desalination & Multipurpose Utilization, SOA, Tianjin 300192, PR China;

    Institute of Seawater Desalination & Multipurpose Utilization, SOA, Tianjin 300192, PR China,No. 1, Keyan East Road, Nankai District, Tianjin 300192, PR China;

    Institute of Seawater Desalination & Multipurpose Utilization, SOA, Tianjin 300192, PR 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

    Elliptical tube; CFD; Liquid film; Heat transfer; Seawater desalination;

    机译：椭圆管;差价合约液膜;传播热量;海水淡化;

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