FLOW ANALYSIS OF ISOBUTANE (R-600A) INSIDE AN ADIABATIC CAPILLARY TUBE

International Conference on Advances in Materials and Manufacturing Applications 2017

Alok, Praveen^1 ; Sahu, Debjyoti^1

Department of Mechanical Engineering, Amrita School of Engineering, Bengaluru, Amrita Vishwa Vidyapeetham, Amrita University, India^1

关键词: Adiabatic capillary tube;    Adiabatic flow;    Flow analysis;    Flow charac-teristics;    Homogeneous equilibrium models;    Load condition;    Pressure and temperature;    R600a;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/310/1/012148/pdf
DOI  :  10.1088/1757-899X/310/1/012148

来源: IOP

【 摘 要 】

Capillary tubes are simple narrow tubes but the phase change which occurs inside the capillary tubes is complex to analyze. In the present investigation, an attempt is made to analyze the flow of Isobutane (R-600a) inside the coiled capillary tubes for different load conditions by Homogeneous Equilibrium Model. The Length and diameter of the capillary tube not only depend on the pressure and temperature of the condenser and evaporator but also on the cooling load. The present paper investigates the change in dimensions of the coil capillary tube with respect to the change in cooling load on the system for the constant condenser and evaporator conditions. ANSYS CFX (Central Florida Expressway) software is used to study the flow characteristics of the refrigerant. Appropriate helical coil is selected for this analysis.