| 板翅式换热器动态特性的试验研究 |
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| 引用本文： | 杜浦,徐益峰,李美玲,蔡祖恢.板翅式换热器动态特性的试验研究[J].上海理工大学学报,1996(1). |
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| 作者姓名： | 杜浦 徐益峰 李美玲 蔡祖恢 |
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| 作者单位： | 华东工业大学动力工程学院 |
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| 摘 要： | 建立了可进行两股及多股流换热器动态特性试验研究的装置．对一．个两股流板翅式换热器施加流量按阶跃变化、进口温度按指数函数变化的时间域扰动信号，进行了动态试验．得到了换热器动态模型对流量扰动可接线性建模的扰动范围，确定了各股流体对进口温度扰动的响应延滞时间的计算公式．对换热器进行了一系列的动态特性测试，并获得其动态响应过程曲线．试验工况的传热单元数范围为０．６～３，雷诺数为２００～２０００，普朗特数为２～７．试验数据为建立完善的理论模型提供了可对比的依据．
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| 关 键 词： | 板翅式换热器 动态特性 试验研究 迟延时间 |
Experimental investigation of the trsnsient characteristics of the Plate-fin heat exchangers |
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| Du Pu,Xu Yifeng,Li Mailing,Cai Zuhui.Experimental investigation of the trsnsient characteristics of the Plate-fin heat exchangers[J].Journal of University of Shanghai For Science and Technology,1996(1). |
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| Authors: | Du Pu Xu Yifeng Li Mailing Cai Zuhui |
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| Abstract: | series of experimental investigations have been done to study the hansicnt characteristics of the plate-fin heat exchangers. The dynamic. response tests were carried out for different values of Reynolds numbers, Prandtl numbers and NTU. The scalings of flowrate erturbation were examined based on the experimental results, with a linear theoretical model. Furthermore, two formulae are presented which can be used to calculate the time delay of response' according to the inlet temperature.change. |
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| Keywords: | Plate-fin heat exchanger dyamic characteristics experimental study delay time |
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