| 板式蒸发器冷凝侧传热及压降性能实验研究 |
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| 作者姓名： | 苏国萍 张建丽 周洪光 杜小泽 唐大伟 |
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| 作者单位： | 1. 神华国华(北京)电力研究院有限公司, 北京 100025;
2. 华北电力大学电站设备状态监测与控制教育部重点实验室, 北京 102206;
3. 中国科学院工程热物理研究所, 北京 100190 |
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| 基金项目： | 国家自然科学基金(U1361108)资助 |
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| 摘 要： | 基于板式蒸发器水蒸汽冷凝传热实验,对人字形板式蒸发器水蒸汽冷凝侧的传热和压降性能进行分析.使用两相流冷凝模型预测本文人字形板式蒸发器冷凝侧的换热性能,采用多元线性回归方法拟合得出人字形板式蒸发器水蒸汽冷凝换热实验关联式.实验得出沿单位长度人字形波纹板的压降随水蒸汽流速的增大不断增大;比较了几种人字形板式蒸发器水蒸汽冷凝侧压降模型,并拟合推导出摩擦因子与当量雷诺数的实验关联式.
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| 关 键 词： | 板式蒸发器 传热特性 压降 水蒸汽冷凝 实验研究 |
| 收稿时间： | 2014-06-19 |
| 修稿时间： | 2014-08-08 |
Experimental study on the characteristics of heat transfer and pressure drop of steam condensation in desalination plate evaporator |
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| Authors: | SU Guoping ZHANG Jianli ZHOU Hongguang DU Xiaoze Tang Dawei |
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| Institution: | 1. Electric Power Research Institute, Beijing 100025, China;
2. Key Laboratory of Condition Monitoring and Control for Power Plant Equipment of Ministry of Education, North China Electric Power University, Beijing 102206, China;
3. Institute of Engineering Thermophysics, Chinese Academy of Sciences, Beijing 100190, China |
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| Abstract: | The characteristics of heat transfer and pressure drop of the steam condensation in plate evaporator were analyzed based on experiment platform of the steam condensation test. The properties of heat transfer of steam condensation in herringbone plate evaporator were predicted by using the two-phase flow condensation model. A correlation of steam condensation heat transfer coefficient in herringbone plate evaporator was fitted by the multiple linear regression analysis method. Pressure drop per unit length along herringbone plate increased with the velocity of steam. Several pressure drop models of steam condensation in herringbone plate evaporator were compared. The experimental correlation between steam condensation friction factor and the equivalent Reynolds number was derived. |
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| Keywords: | plate evaporator characteristics of heat transfer pressure drop steam condensation experimental study |
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