THE THERMO-FLOW PROCESSES PROCEEDING DURING THE TWO – PHASE FLOW IN SUPERSONIC EJECTOR APPLIED IN LOW POWER SOLAR AIR CONDITIONING SYSTEMS
In the paper, the selected designing problems which can result from using the supersonic two-phase flow steam (R 718) ejector in low power refrigerating systems where the high heat source is solar energy have been presented. The numerical calculations were carried out using finite element method in ANSYS CFX software and the mesh was generated using ANSYS ICEM. In order to validate the numerical results, a special set-up was designed and constructed. A series of experiments was carried out at the entrainment ratio range from 0 to 0.3. During the experiments temperature and pressure of primary motive, secondary induced and outlet stream were measured. The experimental results were compared with the numerical calculations. For boundary conditions and SST model of turbulence applied for calculations, the numerical results showed a good agreement with the data obtained during experiments.
S.Pietrowicz J.Kasperski
Wroclaw University of Technology, Institute of Heat Engineering and Fluid Mechanics,Wybrzeze Wyspianskiego 27, Wroclaw 50–370, 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）