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Study on steam-carrying effect in static flash evaporation

机译：静态闪蒸过程中载气效应的研究

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摘要

Study on steam-carrying effect in static flash of both pure water and aqueous NaCl solution was present. Properties, including steam-carrying ratio, waterfilm height drop and equilibrium concentration of waterfilm, were measured in experiments. Their dependences on separating height, initial waterfilm concentration and mean pressure difference were analyzed. Particularly, steam-carrying ratio was defined as the mass ratio of be-carried liquid and generated steam. Results suggested that this ratio increased with the decreasing of separating height or the rising of initial waterfilm concentration, and a peak value existed in its evolution versus mean pressure difference. At last, according to experimental results and basic principles a calculating model for steam-carrying effect in static flash was built.
机译：对纯净水和氯化钠水溶液在静态闪蒸中的载气作用进行了研究。在实验中测量了载气率，水膜高度下降和水膜平衡浓度等性质。分析了它们对分离高度，初始水膜浓度和平均压差的依赖性。特别地，将载水率定义为被载液与产生的蒸汽的质量比。结果表明，该比值随着分离高度的减小或初始水膜浓度的增加而增加，并且在其相对于平均压差的变化中存在一个峰值。最后，根据实验结果和基本原理，建立了静态闪蒸中载气效果的计算模型。

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  • 来源
    《International Journal of Heat and Mass Transfer》 |2012年第18期|p.4487-4497|共11页
  • 作者

    Dan Zhang; Daotong Chong; Junjie Yan; Yousen Zhang;

  • 作者单位

    State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy & Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China;

    State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy & Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China;

    State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy & Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, PR China;

    State Key Laboratory of Multiphase Flow in Power Engineering, School of Energy & Power Engineering, Xi'an Jiaotong University, Xi'an, Shaanxi 710049, 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

    flash evaporation; steam-carrying effect; pressure difference; aqueous nacl solution;

    机译：闪蒸蒸汽作用压差氯化钠水溶液;

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