流体机械

2012, v.40;No.483(09) 72-75

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多元平行流冷凝器的数值模拟研究
Simulation Study of a Multi-unit Parallel-flow Condenser

黄晓峰;曹小林;潘雯;谭志文;李江;孙浩;
HUANG Xiao-feng,CAO Xiao-lin,PAN wen,TAN Zhi-wen,LI Jiang,SUN Hao(Central South University,Hunan Provincial Key Laboratory of Process Industry Energy-saving,Changsha 410083,China)

摘要(Abstract):

采用能量平衡的方法对多元平行流冷凝器建立计算模型,对管内制冷剂和管外空气侧的流动和换热进行了数值分析,模拟结果与实验结果吻合良好进行了比较。研究表明:由于多元平行流冷凝器的变流程结构及制冷剂的相态变化,制冷剂侧传热系数、压降,制冷剂压力和温度及干度沿管长出现多次突变。
A model was developed for a parallel flow type condenser with the energy balance method.Fluid flow and heat transfer processes in both refrigerant and air sides were analyzed with the latest physical properties database and the corresponding correlations,the numerical simulation results agree well with the experimental data,The study showed that the refrigerant heat transfer coefficient and the pressure drop along the passage vary significantly because of the structural process change of condenser and the refrigerant phase-change.

关键词(KeyWords): 平行流冷凝器;制冷剂;换热
parallel-flow condenser;refrigerant;heat transfer coefficient

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作者(Author): 黄晓峰;曹小林;潘雯;谭志文;李江;孙浩;
HUANG Xiao-feng,CAO Xiao-lin,PAN wen,TAN Zhi-wen,LI Jiang,SUN Hao(Central South University,Hunan Provincial Key Laboratory of Process Industry Energy-saving,Changsha 410083,China)

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