• CN:11-2187/TH
  • ISSN:0577-6686

›› 2005, Vol. 41 ›› Issue (6): 118-122.

• 论文 • 上一篇    下一篇

制冷剂在绝热毛细管内流动的线性特性

张春路   

  1. 上海交通大学制冷与低温工程研究所
  • 发布日期:2005-06-15

LINEAR CHARACTERISTICS OF REFRIGERANT FLOW THROUGH ADIABATIC CAPILLARY TUBES

Zhang Chunlu   

  1. Institute of Refrigeration and Cryogenics, Shanghai Jiaotong University
  • Published:2005-06-15

摘要: 虽然制冷剂在毛细管内的流动为非线性的两相临界流,但是在很多特定工况条件下毛细管流量特性表现出良好的线性特性。这类线性特性的存在有利于改进和简化毛细管的设计方法。基于绝热毛细管近似分析解,对这些线性特性从理论上进行了解释和扩展,并用R22、R410A和R407C三种工质的数据进行了验证,结果与理论分析一致。

关键词: 毛细管, 制冷, 制冷剂

Abstract: Although the critical two-phase flow of refrigerant through adiabatic capillary tube is nonlinear, its mass flow characteristics under some typical operating conditions show good linearity. Application of the linear characteristics is helpful to modify or simplify the design and rating method of capillary tube. The linear characteristics are interpreted and extended by the approximate analytic method. Experimental data from the open literature and additional numerical data from an advanced distributed-parameter model for R22, R410A and R407C are used to illustrate the proposed theoretical relations and conform well to the theory.

Key words: Capillary tube, Refrigerant, Refrigeration

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