...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Desalination and water treatment >Experimental study on overall heat transfer coefficient of seawater on three tube arrangements for horizontal-tube falling film evaporator
【24h】

Experimental study on overall heat transfer coefficient of seawater on three tube arrangements for horizontal-tube falling film evaporator

机译：水平管降膜蒸发器三管布置海水总传热系数的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

In this paper, two sets of experimental devices have been established for studying the falling film evaporation outside a horizontal tube and condensation inside a horizontal tube, with three different tube arrangements and seawater as the experimental fluid. The rules of the overall heat transfer coefficient (K) are determined by changing saturation temperature (T), Reynolds number (Re), total temperature difference (Delta T), inlet steam velocity (v(s)), and vapor quality (x). Experimental results indicate that the overall heat transfer coefficient of the rotated square arrangement (K-rs) is higher than that of the triangular arrangement (K-t), and the square one (K-s) is the lowest with less impact on Re, T, Delta T, v(s), or x changing. With Re increasing, the K increases first and then declines, especially when Re>Re-cr, K-rs and K-t are almost the same. The increment of T and Delta T leads to the decreasing of the K, while v(s) has little effect on the K. The growth of x contributes a lot to the increment of the K. In the evaporator, the vapor quality contributes a lot in the horizontal direction, while Re is more influential in the vertical direction.
机译：在本文中，已经建立了两组实验装置，用于研究水平管外的降膜蒸发和水平管内的冷凝，其中三种不同的管布置和海水作为实验流体。通过改变饱和温度（T），雷诺数（Re），总温差（Delta T），入口蒸汽速度（v（s））和蒸汽质量（x）确定总传热系数（K）的规则。 ）。实验结果表明，旋转方形排列的总传热系数（K-rs）高于三角形排列的整体传热系数（Kt），而方形排列的最小传热系数（Ks）对Re，T，Delta的影响较小T，v（s）或x发生变化。随着Re的增加，K值先增加然后下降，尤其是当Re> Re-cr时，K-rs和K-t几乎相同。 T和Delta T的增加导致K的减小，而v（s）对K的影响很小。x的增大对K的增加有很大的贡献。在蒸发器中，蒸气质量对K的贡献很大。在水平方向上影响很大，而Re在垂直方向上影响更大。

著录项

  • 来源
    《Desalination and water treatment》 |2016年第21期|9993-10002|共10页
  • 作者

    Mu Xingsen; Shen Shengqiang; Yang Yong; Liang Gangtao; Chen Xue; Zhang Jili;

  • 作者单位

    Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Liaoning Prov Desalinat, Dalian 116024, Liaoning, Peoples R China;

    Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Liaoning Prov Desalinat, Dalian 116024, Liaoning, Peoples R China;

    Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Liaoning Prov Desalinat, Dalian 116024, Liaoning, Peoples R China;

    Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Liaoning Prov Desalinat, Dalian 116024, Liaoning, Peoples R China;

    Dalian Univ Technol, Sch Energy & Power Engn, Key Lab Liaoning Prov Desalinat, Dalian 116024, Liaoning, Peoples R China;

    Dalian Univ Technol, Sch Civil Engn Dalian, Dalian 116024, Liaoning, Peoples R China;

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

    Tube arrangement; Seawater; Overall heat transfer coefficient; Horizontal-tube falling film; Desalination;

    机译：管子布置;海水;总传热系数;水平管降膜;脱盐;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号