期刊名称：International Journal of Innovative Research in Science, Engineering and Technology
印刷版ISSN：2347-6710
电子版ISSN：2319-8753
出版年度：2016
卷号：5
期号：8
页码：15160
DOI：10.15680/IJIRSET.2016.0508069
出版社：S&S Publications
摘要：Capillary tubes are widely used as refrigerant flow control device in small refrigeration systems. Sincethe flow behavior inside a capillary tube is complex, several physical models are necessary to predict the characteristicsof refrigerant flow in the capillary tube. A refrigerant leaves the compressor at high pressure & temperature and entersthe condenser. After leaving the condenser the refrigerant is at medium temperature & high pressure and then it entersthe Capillary tube. In a Capillary tubes the pressure and the temperature of a refrigerant is reduced drastically andsuddenly. Thus us it is a throttling valve where the temperature of the refrigerant is reduced and it is then able toproduce the cooling effect in evaporator of the refrigerator or cooling coil of the air conditioner.In the presentinvestigation, an attempt is made to analyze the two phase flow of the refrigerant 134a inside a helical capillary tube foradiabatic flow conditions. First of all a validation of Liang and Wong 2001 is made to analyze. The proposed modelinvestigate flow characteristics in adiabatic capillary tubes for a given mass flow rate. In the present study 134a hasbeen used as a working fluid inside the helical capillary tube of diameter 0.66 mm and used the same model to studythe flow characteristics of refrigerant in ANSYS FLUENT software.
关键词：Computational Fluid Dynamics; Volume of fluid Method; Finite Volume Method; Implicit Method;Refrigerant; Two Phase Flow.
