| 空气横掠波纹管束的流动与传热性能 |
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| 引用本文： | 王秋旺,屈治国,李惠珍,林梅,陶文铨.空气横掠波纹管束的流动与传热性能[J].化工学报,2003,54(7):1009-1012. |
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| 作者姓名： | 王秋旺 屈治国 李惠珍 林梅 陶文铨 |
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| 作者单位： | 西安交通大学能源与动力工程学院，陕西 西安 710049 |
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| 基金项目： | 国家重点基础研究发展规划项目(No G2 0 0 0 0 2 63 0 3 )~~ |
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| 摘 要： | 引 言管壳式换热器是石油化工行业应用十分广泛的换热设备 ,它具有易于制造、耐压高等特点 .但是普通管壳式换热器换热效率低 ,因此开发高效传热元件对管壳式换热器的进一步推广应用具有十分重要的意义 .采用翅片管换热器可以大大强化换热 ,但是阻力也增加很多 ,并且容易积垢 ,影响使用 .近年来开发的波纹管换热器由于加工方便、易于制造而越来越受到人们的重视1～ 4 ] .但对于流体横掠波纹管束时流动传热性能的研究却少见报道 .本文对如图 1所示的波纹管束组成的换热器进行了实验测定 ,研究了 3种排数的阻力与换热规律 ,为设计换热器提供…
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| 关 键 词： | 波纹管束 充分发展 传热强化 |
| 文章编号： | 0438-1157(2003)07-1009-04 |
| 收稿时间： | 2002-4-2 |
| 修稿时间： | 2002年4月2日 |
HEAT TRANSFER AND FLUID FLOW OF AIR ACROSS CORRUGATED TUBE BUNDLES |
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| WANG Qiuwang,QU Zhiguo,LI Huizhen,LIN Mei,TAO Wenquan.HEAT TRANSFER AND FLUID FLOW OF AIR ACROSS CORRUGATED TUBE BUNDLES[J].Journal of Chemical Industry and Engineering(China),2003,54(7):1009-1012. |
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| Authors: | WANG Qiuwang QU Zhiguo LI Huizhen LIN Mei TAO Wenquan |
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| Abstract: | The characteristics of pressure drop and heat transfer of air across the corrugated tubes with three values of row number were investigated experimentally by measuring the average heat transfer coefficients and friction factors. The results were compared with that of the corresponding same row number smooth tube bundles.The corresponding correlation for the Nusselt numbers and Euler numbers vs the Reynolds numbers for the corrugated tubes were obtained. It was found that the corrugated tube bundles will reach the developed state at a smaller row number compared with the smooth tube bundles. Within the range of Reynolds numbers of the present work, the heat transfer coefficients and the friction factors of the corrugated tube bundles were 13.6%-29.2% and 3.2%-60.0% higher than those of the smooth tube bundles respectively. |
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| Keywords: | corrugated tube bundles developed state heat transfer enhancement |
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