Investigation on Characteristics of Pressure Drop for Binary Mixture in Horizontal Micro-fin Tube

doi:10.3969/j.issn.0253-4339.2006.04.004

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Investigation on Characteristics of Pressure Drop for Binary Mixture in Horizontal Micro-fin Tube

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- Investigation on Characteristics of Pressure Drop for Binary Mixture in Horizontal Micro-fin Tube
- Journal of Refrigeration Vol. 27, Issue 4, Pages: 13-16(2006)
- 作者机构：
  
  上海理工大学动力工程学院,上海,200093
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2006.04.004
  CLC：
- Published：2006
- 稿件说明：
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Investigation on Characteristics of Pressure Drop for Binary Mixture in Horizontal Micro-fin Tube[J]. Journal of Refrigeration, 2006, 27(4): 13-16.
DOI：

Investigation on Characteristics of Pressure Drop for Binary Mixture in Horizontal Micro-fin Tube[J]. Journal of Refrigeration, 2006, 27(4): 13-16. DOI： 10.3969/j.issn.0253-4339.2006.04.004.

摘要

对非共沸混合工质R32／R134a在水平微翅管内流动沸腾阻力特性进行了实验研究，分析了影响压特性的一些因素，讨论了混合物在水平微翅管内流动沸腾的流动阻力特点和规律。通过对试验数据的拟合，按分相模型计算了加速阻力，并建立了预测摩擦阻力的关联式，计算结果与实验较吻合。

Abstract

Using non-azeotropic refrigerant mixture R32/R134a as the working fluid

the experimental study on the horizontal micro-fin tubes was conducted.Several factors affecting pressure drop were analyzed

and the characteristics of flow boiling and pressure drop of the mixture in the horizontal micro-fin tubes were discussed.Based on the experimental data

the acceleration resistance was calculated according to the phase separation model

and the empirical correlations for frictional resistance were obtained.The calculation result is well consistent with the experimental data.

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