| 多元平行流冷凝器流程布置的模拟研究与分析 |
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| 引用本文： | 解文正,杜岭岭,高学攀,王振华. 多元平行流冷凝器流程布置的模拟研究与分析[J]. 机械设计与制造, 2011, 0(3) |
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| 作者姓名： | 解文正 杜岭岭 高学攀 王振华 |
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| 作者单位： | 河北工程大学,机电学院,邯郸,056038 |
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| 摘 要： | 根据多元平行流冷凝器的特点,采用分布参数法对其建立了稳态数学模型.对不同流程数的多元平行流冷凝器的传热和流动性能进行了模拟计算和分析比较,发现了增加流程数对换热量和制冷剂侧压降影响的规律;得出了为保证冷凝器合适的压降,不宜使整体流程数过多的结论.同时,对多元平行流冷凝器的多种各流程扁管排数分配方式进行了模拟比较.结果表明:各种各流程扁管排数分配方式对冷凝器的换热量影响相对较小,主要影响制冷剂侧压降的变化;两相段应该作为冷凝器芯体的主体部分,以保证整个冷凝器有较高的换热性能;由于过冷段扁管排数对制冷剂侧压降影响较大,不宜过少.
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| 关 键 词： | 平流流冷凝器 流程布置 管数分配 换热量 压降 |
Simulation study on multi-unit parallel-flow condenser with flow configuration |
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| XIE Wen-zheng,DU Ling-ling,GAO Xue-pan,WANG Zhen-hua. Simulation study on multi-unit parallel-flow condenser with flow configuration[J]. Machinery Design & Manufacture, 2011, 0(3) |
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| Authors: | XIE Wen-zheng DU Ling-ling GAO Xue-pan WANG Zhen-hua |
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| Affiliation: | XIE Wen-zheng,DU Ling-ling,GAO Xue-pan,WANG Zhen-hua(School of Electrical and Mechanical,Hebei University of Engineering,Handan 056038,China) |
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| Abstract: | A steady-state general-purpose mathematic model of distributed parameter for multi-unit parallel-flow type condenser was derived according to the characteristics of it.The simulation and analysis of the heat transfer and the flow characteristics in parallel-flow type condenser of different pass number were carried out.It is found the law that increasing the pass number has an effect on heat transfer and refrigerant side pressure drop,and get the conclusion that to ensure the condenser has appropriate pressu... |
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| Keywords: | Parallel-flow type condenser Flow configuration Tube number arrangement Heat transfer capacity Pressure drop |
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