| 弹性管束汽－水换热器强化传热试验研究 |
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| 引用本文： | 程林,田茂诚,林颐清,张冠敏. 弹性管束汽－水换热器强化传热试验研究[J]. 工程热物理学报, 2001, 22(2): 199-202 |
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| 作者姓名： | 程林 田茂诚 林颐清 张冠敏 |
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| 作者单位： | 山东大学动力工程系,;山东大学动力工程系,;山东大学动力工程系,;山东大学动力工程系, |
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| 基金项目： | 国家自然科学基金资助项目!（No．50076022） |
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| 摘 要： | 本文设计了一种新的传热元件－弹性管束,它对管内外流体流动具有良好的振动响应特性。利用传热表面振动提高管外对流换热系数的同时,利用振动变形减少积垢,降低污垢热阻,实现了复合强化传热。在汽水换热条件下,对流作诱导振动强化传热规律进行了试验研究,得到了管外对流换热的准则方程式。
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| 关 键 词： | 流体诱导振动 强化传热 换热器 |
| 文章编号： | 0253-231X(2001)02-0199-04 |
| 修稿时间： | 2000-11-05 |
EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN STEAM-WATER HEAT EXCHANGERS MADE UP WITH ELASTIC TUBE BUNDLES |
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| CHENG Lin,TIAN Mao-cheng,LIN Yi-qing,ZHANG Guan-min. EXPERIMENTAL INVESTIGATION OF HEAT TRANSFER ENHANCEMENT IN STEAM-WATER HEAT EXCHANGERS MADE UP WITH ELASTIC TUBE BUNDLES[J]. Journal of Engineering Thermophysics, 2001, 22(2): 199-202 |
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| Authors: | CHENG Lin TIAN Mao-cheng LIN Yi-qing ZHANG Guan-min |
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| Abstract: | A novel heat transfer element called elastic tube bundles has been designed which has excellent response characteristics of vibration induced by the flow. The vibration of the heat transfer surface can increase the heat transfer coefficient, meantime, the vibration of the tubes can also remove the fouling adhered to the tube surface easily. Experiments were carried out on the heat transfer characteristics of the elastic tube bundles used in steam-water heat exchanger. The non-dimensional equations of the outside heat transfer coefficient for the elastic tube bundles were obtained. |
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| Keywords: | Flow-induced vibration heat transfer enhancement heat exchanger |
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