| 矩形微槽道饱和沸腾临界热流密度特性 |
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| 引用本文： | 罗小平,唐杨.矩形微槽道饱和沸腾临界热流密度特性[J].低温与超导,2010,38(6). |
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| 作者姓名： | 罗小平 唐杨 |
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| 作者单位： | 华南理工大学机械与汽车工程学院,广州,510640 |
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| 摘 要： | 对矩形微槽中的流动沸腾临界热流密度进行了实验研究。研究CHF随质量流速、进口过冷度和出口干度的增加而出现的变化趋势,以及槽道尺寸对CHF的影响。搭建试验平台,在不同槽道当量直径、较大范围的质量流速和不同进口过冷度条件下,获得以去离子水为工质两相沸腾传热的实验数据。由于常规尺寸槽道CHF预测关联式并不具有普遍性,所以提出了一个适用于微槽道饱和沸腾CHF的预测模型。并通过与该文以及参考文献中实验数据进行对比,验证了该模型的适用性。
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| 关 键 词： | 矩形微槽道 临界热流密度 去离子水 饱和沸腾 预测模型 |
Properties of saturated flow boiling critical heat flux through rectangular micro-channel |
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| Luo Xiaoping,Tang Yang.Properties of saturated flow boiling critical heat flux through rectangular micro-channel[J].Cryogenics and Superconductivity,2010,38(6). |
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| Authors: | Luo Xiaoping Tang Yang |
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| Institution: | Luo Xiaoping,Tang Yang(School of Mechanical and Automotive Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | Extensive experimentation was performed in rectangular microchannels to obtain the flow boiling critical heat flux(CHF).Two-phase boiling heat transfer was in microchannels ranging from three kinds of diameters over a wide range of mass fluxes and inlet subcoolings,for demin-water as working fluids.The effect of different operating parameters-mass flux,inlet subcoolings,exit quality and diameter were assessed in detail and compared with other microchannels data from literature.There was a characteristic sha... |
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| Keywords: | Rectangular micro-channels Critical heat flux(CHF) Demin-water Saturated flow boiling Predicted model |
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