NUMERICAL SIMULATION AND ANALYSIS OF MULTI-CHANNEL PARALLEL-FLOW CONDENSER
A numerical model of parallel-flow condenser, which is composed of multi-channel tubes and louvered fins, is established based on the ε-NTU method. The tube-side refrigerant was divided into three regions including the superheating, two-phase and supercooling region. The calculational data have a good agreement with the experimental data. The heat transfer coefficient of refrigerant was studied on the basis of the model. The effect of flow distribution on the condenser capacity and pressure drop of refrigerant side was simulated. A critical ratio of the first pass number to the second pass number was observed at which the maximum heat transfer rate and the minimum pressure drop of refrigerant side occur.
Multi-channel parallel-flow condenser numerical model heat transfer characteristics flow distribution
Zhaogang QI Jiangping CHEN Zhijiu CHEN
Institute of Refrigeration and Cryogenics, No. 1954, Huashan Rd.,Shanghai 200030, China
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）