THE CAPILLARY TUBE APPLICATION IN A CO2 AIR –CONDITIONING SYSTEM
This paper presents a non-adiabatic homogeneous model of carbon dioxide flowing through a capillary tube,where the carbon dioxide undergoes a phase change from supercritical fluid flow to subcritical two-phase flow. The model is based on the fundamental conservation equations of mass, momentum and energy. These equations are solved simultaneously through iterations. The in-tube flow can be divided into a single-phase region and a two-phase region. The extreme choked situation at the outlet is evaluated by local sonic velocity judgment. Relationships between gas pressure in the cooler, evaporating temperature, heat transfer to the ambient coefficient and other working parameters are presented and analyzed in detail.
B.BIALKO Z.KROLICKI
Wroclaw University of Technology, Department of Mechanical and Power Engineering Wybrzeze Wyspianskiego 27, 50-370 Wroclaw, Poland
国际会议
The 22nd International Congress of Refrigeration(第22届国际制冷大会)
北京
英文
2007-08-21（万方平台首次上网日期，不代表论文的发表时间）