| 伴随有水蒸气凝结的烟气对流换热的实验研究 |
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| 引用本文： | 曹彦斌,艾效逸,郭全,潘树源,Fu Zhongcheng,傅忠诚,王随林.伴随有水蒸气凝结的烟气对流换热的实验研究[J].工程热物理学报,2000,21(6):729-733. |
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| 作者姓名： | 曹彦斌 艾效逸 郭全 潘树源 Fu Zhongcheng 傅忠诚 王随林 |
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| 作者单位： | 1. 北京建筑工程学院城建系,北京 100044
2. Urban Construction Department, Beijing Institute ofArchitecture and Civil Engineering,Beijing 100044,China |
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| 摘 要： | 本文通过实验研究了冷凝式燃气热水器中烟气伴随有水蒸气凝结的受迫对流换热过程。着重介绍实验系统、测试方法和对塔板式换热器和肋片板式换热器的实验研究结果。实验表明，有水蒸气凝结时的烟气对流换热系数远大于无凝结时的换热系数，可提高数倍。在冷凝式换热器中，塔板式换热器的换热系数大于肋片板式换热器。
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| 关 键 词： | 烟气对流换热 凝结 肋片换热器 |
| 文章编号： | 0253-231X(2000)06-0729-05 |
| 修稿时间： | 2000年1月13日 |
INVESTIGATION ON FORCED CONVECTIVE HEAT TRANSFER WITH STEAM CONDENSATION OF FLUE BY EXPERIMENT |
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| CAO Yanbin,AI Xiaoyi,GUO Quan,PAN Shuyuan,FU Zhongcheng,WANG Suilin.INVESTIGATION ON FORCED CONVECTIVE HEAT TRANSFER WITH STEAM CONDENSATION OF FLUE BY EXPERIMENT[J].Journal of Engineering Thermophysics,2000,21(6):729-733. |
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| Authors: | CAO Yanbin AI Xiaoyi GUO Quan PAN Shuyuan FU Zhongcheng WANG Suilin |
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| Abstract: | The forced convective heat transfer of heat exchangers used in gas boilers withsteam condensing was investigated experimentally. Three kinds of the heat exchangers wereinvestigated, including column trays, single finned circular tubes and stagger filnned circulartubes heat exchanger. The experimental system and investigating method are presented inthe papers. The experimental results indicate that, compared with the heat transfer withoutcondensation, the heat transfer coefficient of heat exchangers with steam condensation isseveralfold higher than that of the heat exchangers without condensation. Comparing theinvestigated condensing heat exchangers, the heat transfer coefficient of the column heatexchangers is higher than that of the finned circular tubes heat exchangers. |
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| Keywords: | forced convective heat transfer of flue condensation finned heat exchanger |
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