| 星型内插件高温换热管强化传热研究 |
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| 引用本文： | 姜德成,钟明,刘莹峰,汤成学,王彦斌.星型内插件高温换热管强化传热研究[J].齐齐哈尔大学学报(自然科学版),1997(1). |
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| 作者姓名： | 姜德成 钟明 刘莹峰 汤成学 王彦斌 |
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| 作者单位： | 齐齐哈尔轻工学院(姜德成，钟明)，齐齐哈尔油漆化工总厂(刘莹峰)，齐齐哈尔纺织厂(汤成学)，齐齐哈尔第一机床厂(王彦斌) |
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| 摘 要： | 采用实验的方法对星型内插件高温换热管强化传热进行了探讨和研究。对不同翅片内插件高温换热管辐射传热对整体换热系数的影响进行了讨论。结果表明：随着管壁平均温度的增加或翅片数的增多，内插件强化管总体对流技热系数增大，辐射热影响程度增加。若允许摩擦阻力系数增加一倍强，就可使总的对流换热系数较先管提高50％。
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| 关 键 词： | 强化传热 高温换热管 星型内插件 |
Study on Heat Transfer Augmentation of Circular Tubes with Star-Shaped Inserts in High Temperature |
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| Jiang Decheng, Zhong Ming, Liu Yingfeng.Study on Heat Transfer Augmentation of Circular Tubes with Star-Shaped Inserts in High Temperature[J].Journal of Qiqihar University(Natural Science Edition),1997(1). |
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| Authors: | Jiang Decheng Zhong Ming Liu Yingfeng |
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| Institution: | Jiang Decheng; Zhong Ming; Liu Yingfeng(Qiqihar Light Industry Institute) (Qiqihar Genral Paint Chemical Plant)Tang Chengxue; Wang Yanbin(Qiqihar Fabric Plant) (First Machine Tool Plant of Qiqihar) |
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| Abstract: | An experimental investigation was made for circular tubes with straight fin star-shaped inserts in high temperature heat transfer enhancement. With each insert,friction factor characteristics and the effect of radiant heat transfer enhancement to overall heart transfer coefficients are analysed. We plotted the curves of overall heat transfer coefficients via average wall temperature for variable fin numbers and mass flow rates.Experimental results are presented: With the increasing average wall temperiture or fin numbers. overall heat transfer coefficents were promoted, the effect of thermal radiation inluence becomes great. |
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| Keywords: | Heat transfer augmentation Star-shaped inserts High temperiture heat exchange tube |
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