小型空调装置毛细管长度计算方法研究  

Research on the Calculation Method of Capillary Length about Small Air Conditioning Equipment

作　　者：孔祥敏 刘何清[2,3] 王浩[3] 

机构地区：[1]广东省江门技师学院,广东江门529030 [2]煤矿安全开采技术湖南省重点实验室,湖南湘潭411201 [3]湖南科技大学能源与安全工程学院,湖南湘潭411201

出　　处：《制冷》2013年第1期1-6,共6页Refrigeration

基　　金：国家自然科学基金资助项目(51074072);国家自然科学基金重点项目(51134005)

摘　　要：通过分析比较,选择根据动量方程导出的壅塞流判据作为确定毛细管合理长度的判据,选择了用于计算机模拟计算的两相区毛细管长度计算数学模型;计算毛细管长度的计算机程序基于Matlab软件进行编译。通过分析制冷剂通量、毛细管管径、制冷剂冷凝压力对毛细管长度的影响,总结得出了制冷剂通量、毛细管管径、制冷剂冷凝压力对毛细管长度的影响规律。编写的计算机程序可方便、快速、准确确定不同制冷量下小型空调装置的毛细管参数,为设计高效空调装置提供便利。Through analysis and comparison, got choking flow criterion which deduced by the momentum equations as the determination of calculation capillary length; chose the mathematical calculation model used by computer in calculating the two - phase area capillary length; and then used Mallab for programming of capillary length in computing process. Through analyzing of Refrigerants flux, capillary diameter and refrigerant condensing pressure, get the influents law caused by these. The written calculation program was convenient, fast and accurate to compute the capillary parameters of small air conditioning equipments, and these can provide convenient for design air conditioning device.

关 键 词：毛细管长度 单相流区 两相流区 计算机模拟 

分 类 号：TB657[一般工业技术—制冷工程] TK172.4[动力工程及工程热物理—热能工程]