| 多孔涂层横向抽吸效应强化膜状凝结换热的研究 |
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| 引用本文： | 马学虎,陈嘉宾,王补宣.多孔涂层横向抽吸效应强化膜状凝结换热的研究[J].工程热物理学报,2000,21(4):471-474. |
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| 作者姓名： | 马学虎 陈嘉宾 王补宣 |
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| 作者单位： | 1. 大连理工大学化学工程研究所,辽宁 大连 116012
2. 清华大学热能工程系,北京 100084 |
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| 基金项目： | 中国博士后科学基金!19964，大连理工大学中青年骨干教师培养基金!1999 |
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| 摘 要： | 研究多孔涂层界面抽吸效应对强化膜状凝结换热的影响。考察了多孔涂层的特性参数对凝液膜厚度和换热系数的影响。与Nusselt理论预示值对照表明，多孔涂层界面抽吸效应是强化膜状凝结换热的重要因素。
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| 关 键 词： | 强化冷凝传热 多孔涂层 界面抽吸效应 |
| 文章编号： | 0253-231X(2000)04-0471-04 |
| 修稿时间： | 1999年5月22日 |
INTERFICIAL SUCTION EFFECTS OF A POROUS LAYER ON FILMWISE CONDENSATION HEAT TRANSFER ENHANCEMENT |
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| MA Xuehu,CHEN Jiabin,WANG Buxuan.INTERFICIAL SUCTION EFFECTS OF A POROUS LAYER ON FILMWISE CONDENSATION HEAT TRANSFER ENHANCEMENT[J].Journal of Engineering Thermophysics,2000,21(4):471-474. |
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| Authors: | MA Xuehu CHEN Jiabin WANG Buxuan |
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| Abstract: | Considered the liquid transverse suction effect at the porous layer interface,mathematical models was presented to investigate the influences of the porous layer charac-teristic parameters on condensation heat transfer. The results revealed that the enhancement ratio increased with the increase of the porous layer thickness and permeability. The effectivethermal conductivity of the porous layer was, however, of little significance for condensationheat transfer enhancement. Also, the enhancement mechanism was analyzed by comparisingthe thermal resistances within the external condensate film and the porous layer. |
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| Keywords: | condensation heat transfer enhancement porous layer interfacial suction effect |
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