| 垂直管内载气强化二元混合物沸腾传热 |
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| 引用本文： | 高军,张艳红,朱兆友,徐维勤,沈自求. 垂直管内载气强化二元混合物沸腾传热[J]. 青岛科技大学学报(自然科学版), 2002, 23(4): 52-56 |
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| 作者姓名： | 高军 张艳红 朱兆友 徐维勤 沈自求 |
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| 作者单位： | 青岛化工学院 山东青岛266042(高军，张艳红，朱兆友)，大连理工大学 辽宁大连116012(徐维勤)，大连理工大学 辽宁大连116012(沈自求) |
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| 基金项目： | 山东省教委资助项目 ( J99C5 2) |
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| 摘 要： | 在垂直管内二元混合物的流动沸腾传热过程中 ,引入空气作为载气 ,改变其传热机理从而强化其传热性能。研究不同质量分数的乙醇水溶液 ,在不同操作压力、液体流速和载气流速条件下 ,其平均传热膜系数和壁面过热度的变化规律。分析讨论了载气引入强化沸腾传热各因素的影响并对实验数据进行了关联计算。结果表明 ,关联式能较好的反映各因素的影响 ,其偏差在 -2 3 %～ +2 0 %之间 ,平均偏差为 8.3 1 4
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| 关 键 词： | 垂直管 强化 沸腾传热 |
| 文章编号： | 1001-4764-(2002)04-0052-05 |
| 修稿时间： | 2001-10-08 |
Enhancement of Boiling Heat Transfer for Binary Mixture in Vertical Tube |
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| GAO Jun ,ZHANG Yan-hong ,ZHU Zhao-you ,XU Wei-qin ,SHEN Zi-qiu. Enhancement of Boiling Heat Transfer for Binary Mixture in Vertical Tube[J]. Journal of Qingdao University of Science and Technology:Natutral Science Edition, 2002, 23(4): 52-56 |
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| Authors: | GAO Jun ZHANG Yan-hong ZHU Zhao-you XU Wei-qin SHEN Zi-qiu |
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| Affiliation: | GAO Jun 1,ZHANG Yan-hong 1,ZHU Zhao-you 1,XU Wei-qin 2,SHEN Zi-qiu 2 |
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| Abstract: | The experimental apparatus was set up to study the boiling heat transfer for binary mixture by introducing air into the system. The ethanol aqueous solrtion with different concentration was used to conduct the experiment.The results showed that the average heat transfer coefficient increased with increasing the air velocity,but decreased with increasing the ethanol concentrations and the vacuum. The correlation was given by dimensional analysis method with consideration of the effect of pressure,liquid and gas velocity. The calcrlated results showed a better agreement with the experimental data. |
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| Keywords: | vertical tube enhancement boiling heat transfer |
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