| 微槽道内流动沸腾的流阻特性研究 |
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| 引用本文： | 廖寿学,罗小平. 微槽道内流动沸腾的流阻特性研究[J]. 化工机械, 2011, 38(3): 276-279,319 |
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| 作者姓名： | 廖寿学 罗小平 |
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| 作者单位： | 华南理工大学机械与汽车工程学院 |
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| 摘 要： | 研究了去离子水在3种规格矩形微槽内竖直向上流动沸腾的流阻特性,着重考察了出口干度、质量流速、进口过冷度和微槽尺寸对沸腾流动压降的影响.试验结果表明,两相摩擦压降随出口干度增大而增大,在相同出口干度下,入口质量流速越大摩擦压降越大,摩擦压降与入口过冷度无关;随着微槽道尺寸减小,摩擦压降增大.
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| 关 键 词： | 流动沸腾 流动阻力 微槽 |
Flow Resistance Research of Boiling Flow in Microgrooves |
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| LIAO Shou-xue,LUO Xiao-ping. Flow Resistance Research of Boiling Flow in Microgrooves[J]. Chemical Engineering & Machinery, 2011, 38(3): 276-279,319 |
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| Authors: | LIAO Shou-xue LUO Xiao-ping |
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| Affiliation: | (School of Mechanical ＆ Automotive Engineering,South China University of Technology,Guangzhou 510640,China) |
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| Abstract: | The up-flow resistance of deionized water in three different rectangle microgrooves was analyzed,and the influence of outlet dryness,mass flow rate,inlet subcooling degree and micro-groove size on the heat flux pressure drop were discussed.The testing results show that the frictional pressure drop can increase with the rise of outlet vapor quality and decrease of micro-grooves size,and has no relation with the inlet subcooling degree;and because of the same outlet vapor quality,the frictional pressure drop is in direct proportion to the inlet mass flow rate |
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| Keywords: | boiling flow flow resistance microgroove |
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