...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Multiphase Flow >Pressure drop of pure hfc refrigerants and their mixtures flowing in capillary tubes
【24h】

Pressure drop of pure hfc refrigerants and their mixtures flowing in capillary tubes

机译：纯HFC制冷剂及其混合物在毛细管中流动的压降

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

The pressure drop of a capillary tube flow is experimentally investigated. In this study, pure refrigerants such as R32, R125 and R134a and their mixtures such as R32/R134a (30/70 by mass fraction), R32/R125 (60/40), R125/R134a (30/70) and R32/R125/R134a (23/25/52) are used as test fluids. The binary interaction parameters for viscosities of the liquid state of refrigerant mixtures are found based upon the experimental data in the open literature. Several homogeneous flow models predicting the viscosity of two-phase region are compared and Cicchitti's equation is shown to be the most adequate for adiabatic capillary flows. A model for the prediction of the frictional pressure drop of single and two-phase flow is presented for the refrigerant mixtures in this study.
机译：实验研究了毛细管流的压降。在这项研究中，使用纯制冷剂，例如R32，R125和R134a及其混合物，例如R32 / R134a（质量分数为30/70），R32 / R125（60/40），R125 / R134a（30/70）和R32 / R125 / R134a（23/25/52）用作测试液。基于公开文献中的实验数据，找到了制冷剂混合物的液态粘度的二元相互作用参数。比较了预测两相区域粘度的几种均匀流动模型，并证明了Cicchitti方程最适合绝热毛细管流动。本研究提出了一种用于制冷剂混合物的单相和两相流摩擦压降预测的模型。

著录项

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