| 非共沸混合物微通道内流动沸腾特性 |
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| 引用本文： | 马虎根,胡自成.非共沸混合物微通道内流动沸腾特性[J].化工学报,2006,57(3):526-529. |
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| 作者姓名： | 马虎根 胡自成 |
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| 作者单位： | 上海理工大学动力工程学院,上海,200093;上海理工大学动力工程学院,上海,200093;江苏大学能源与动力工程学院,江苏,镇江,212013 |
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| 基金项目： | 上海市高等教育科技发展基金 |
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| 摘 要： | 引言 近30年来,工程技术的发展正朝微型化迈进,微型结构冷却技术在微电子、航天航空、生物医药和微型换热器等高新技术领域得到越来越多应用,由于沸腾换热是一种高强度的换热方式,微型通道内的流动沸腾换热特征的研究变得越来越重要.
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| 关 键 词： | 微尺度通道 流动沸腾 混合工质 |
| 文章编号： | 0438-1157（2006）03-0526-04 |
| 收稿时间： | 12 6 2004 12:00AM |
| 修稿时间： | 2004-12-062005-09-15 |
Flow boiling in microchannel with nonazeotropic mixture |
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| MA Hugen,HU Zicheng.Flow boiling in microchannel with nonazeotropic mixture[J].Journal of Chemical Industry and Engineering(China),2006,57(3):526-529. |
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| Authors: | MA Hugen HU Zicheng |
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| Affiliation: | 1 College of Power Engineering, University of Shanghai for Science and Technology, Shanghai 200093, China; 2 College of Energy and Power Engineering, University of Jiangsu, Zhenjiang 212013, Jiangsu, China |
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| Abstract: | Experimental results are reported for the flow boiling heat transfer characteristics of nonazeotropic refrigerant mixture of R32 and R134a(25%/75%) in a microchannel with d=0.86 mm.The research results show that when the mass quality is greater than 0.1, the mass quality and mass flux have almost no effects on the heat transfer coefficients of flow boiling.Heat transfer coefficients of the flow boiling in the microchannel are dependent mainly on heat flux.Nucleation is dominant in the heat transfer process for most situations.The flow boiling heat transfer coefficients in microchannel are 30%—200% higher than those in normal tubes.Experimental correlation is presented with deviation of no more than 25%. |
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| Keywords: | microchannel flow boiling nonazoetropic mixture |
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