| 不互溶液体内泡滴的直接接触传热模型(英文) |
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| 引用本文： | 张鹏,王一平,张金利,王琨.不互溶液体内泡滴的直接接触传热模型(英文)[J].天津大学学报(英文版),2001,7(1). |
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| 作者姓名： | 张鹏 王一平 张金利 王琨 |
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| 作者单位： | 1. 天津大学化工学院,
2. 吉林化工学院精 细化工系, |
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| 摘 要： | 研究垂直管内两不互溶液体——正戊烷 -水系统的直接接触传热 ,管内易汽化的液体从管底用氮气压入形成分散泡滴 ,不易汽化的连续相液体在加热到一定温度后 ,以并流形式流过 .在考虑气泡被连续相流体破碎的情况下 ,借助于平均体积传热系数模型 ,在理论分析基础上通过实验研究建立了单个气泡的传热系数模型 ,模型参数有较好的关联性
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| 关 键 词： | 直接接触传热 传热系数 模型 |
HEAT TRANSFER MODEL OF A DROPLET IN AN IMMISCIBLE LIQUID |
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| ZHANG Peng,WANG Yi-ping,ZHANG Jin-li,WANG Kun.HEAT TRANSFER MODEL OF A DROPLET IN AN IMMISCIBLE LIQUID[J].Transactions of Tianjin University,2001,7(1). |
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| Authors: | ZHANG Peng WANG Yi-ping ZHANG Jin-li WANG Kun |
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| Institution: | ZHANG Peng 1,WANG Yi-ping 1,ZHANG Jin-li 1,WANG Kun 2 |
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| Abstract: | The heat transfer of the dispersed droplets of a volatile liquid sprayed upward in an immiscible continuous-phase liquid in a vertical tube are analyzed for an n-pentane-water system.According to the definition of the turbulent film heat transfer coefficient based on a surface area of a spherical two-phase droplet,a heat transfer model of a droplet in an immiscible liquid is developed.Making use of the volumetric heat transfer coefficient derived under taking into account the fragmentation of the two-phase droplet,the parameters in the model are determined by the theoretical analysis and the experimental research. |
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| Keywords: | direct-contact heat transfer heat transfer coefficient model |
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