| 换热管内置开边槽扭带的阻力与传热特性研究＊ |
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| 引用本文： | 詹三江,林清宇,孙瑞娟,冯振飞.换热管内置开边槽扭带的阻力与传热特性研究＊[J].化工科技,2012,20(1):6-9. |
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| 作者姓名： | 詹三江 林清宇 孙瑞娟 冯振飞 |
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| 作者单位： | 1. 广西大学化学与化工学院,广西南宁,530004
2. 广西大学化学与化工学院,广西南宁 530004;广西石化资源加工及过程强化技术重点实验室,广西南宁 530004 |
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| 基金项目： | 广西自然科学基金项目(桂科青0447005);广西大学基金项目 |
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| 摘 要： | 将21种不同结构参数的铝制扭带分别置入换热管进行冷态和热态实验，研究并分析了换热管内置开三角形边槽扭带的阻力和传热特性。实验结果表明，插入开边槽扭带后管内的流动阻力和传热系数都有较大的提高。通过多元线性回归分析，得到了相应的阻力系数关联式和换热系数关联式。由强化传热性能评价分析，得到评价因子φ=1．05～1．35，证明了所研究的扭带具有强化传热的应用价值。
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| 关 键 词： | 强化传热 开边槽扭带 阻力特性 换热管 |
Heat transfer and resistance characteristics in a circular tube fitted with triangular groove twisted-tape insert |
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| ZHAN San-jiang
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LIN Qing-yu
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SUN Rui-juan
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FENG Zhen-fei.Heat transfer and resistance characteristics in a circular tube fitted with triangular groove twisted-tape insert[J].Science & Technology In Chemical Industry,2012,20(1):6-9. |
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| Authors: | ZHAN San-jiang LIN Qing-yu SUN Rui-juan FENG Zhen-fei |
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| Affiliation: | 1,2(1.College of Chemistry and Chemical Engineering,Guangxi University,Nanning 530004,China;2.Guangxi Key Laboratory of Petrochemical Resource Processing and Process Intensification Technology,Nanning 530004,China) |
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| Abstract: | This paper reported an experimental study on heat transfer and friction resistance characteristics in a heat transfer tube equipped with triangular groove twisted-tape insert.The cold and heat experiments of 21 different structural parameters twisted-tapes were proceeded.The results showed that the friction resistance and heat transfer coefficient of heat transfer tubes have a grate improvement after fitted with triangular groove twisted-tape.The resistance coefficient equation and heat transfer coefficient equation were obtained by Multiple Linear Regression Analysis and the factor Φ=1.05-1.35 was observed by comprehensively estimating and analysis,it indicated that the transfer enhancement of triangular groove twisted-tape is good. |
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| Keywords: | Heat transfer enhancement Triangular groove twisted-tape Resistance characteristic Heat transfer tube |
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