| 波纹管内强制对流换热与阻力特性的实验研究 |
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| 引用本文： | 曾敏,王秋旺,屈治国,柏巍,陶文铨.波纹管内强制对流换热与阻力特性的实验研究[J].西安交通大学学报,2002,36(3):237-240. |
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| 作者姓名： | 曾敏 王秋旺 屈治国 柏巍 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,710049,西安 |
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| 基金项目： | 国家基础研究规划项目 (G2 0 0 0 2 6 30 3)，国家自然科学基金资助项目 (5 9995 46 0 - 2，5 980 6 0 11) |
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| 摘 要： | 用实验方法研究了空气在具有3种不同管径19、25、32mm的波纹管内的流动与换热特性。管的外壁采用电加热，来模拟均匀热流的条件，测得了不同工况下各种管径的平均对流换热系数和阻力系数，拟合出了所测的参数范围内的阻力和换热实验关联式，并比较了相同管径的波纹管和光管的换热效果，发现无论在哪种比较条件下，波纹管均比相同管径下的光管综合换热性能强。
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| 关 键 词： | 波纹管 强制对流换热 阻力特性 实验研究 管壳式换热器 |
| 文章编号： | 0253-987X(2002)03-0237-04 |
| 修稿时间： | 2001年8月2日 |
Experimental Study on the Pressure Drop and Heat Transfer Characteristics in Corrugated Tubes |
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| Characteristics in Corrugated Tubes Zeng Min,Wang Qiuwang,Qu Zhiguo,Bo Wei,Tao Wenquan.Experimental Study on the Pressure Drop and Heat Transfer Characteristics in Corrugated Tubes[J].Journal of Xi'an Jiaotong University,2002,36(3):237-240. |
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| Authors: | Characteristics in Corrugated Tubes Zeng Min Wang Qiuwang Qu Zhiguo Bo Wei Tao Wenquan |
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| Abstract: | The characteristics of turbulent flow and heat transfer in corrugated tubes with three kinds of diameter were investigated experimentally. The outer tube surfaces were electrically heated to simulate the condition of constant heat flux. Average heat transfer coefficients and fric-tion factors were measured for different tubes. The corresponding correlation for the friction fac-tors and Nusselt numbers to the Reynolds numbers were obtained for the corrugated tubes. The results of the above corrugated tubes were compared with that of the smooth tubes. It was found that the corrugated tubes can significantly enhance the heat transfer under any of the three kinds of comparison conditions. |
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| Keywords: | corrugated tubes turbulent flow and heat transfer experimental study |
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