流体机械

2007, No.415(01) 79-81+48

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螺旋扁管冷凝器强化传热评价与应用
Evaluation and Its Appplication of the Enhanced Heat Transfer on Twisted Tube Condensator

卿德藩;邹家柱;
QING De-fan,ZOU Jia-zhu(Nanhua University,Hengyang 421001,China)

摘要(Abstract):

提出了螺旋扁管强化传热评价指标。通过实验,得出了螺旋扁管强化传热及阻力性能特性。结果表明,在较低Re下螺旋扁管强化传热效果较好,在传热的同时,使流动阻力系数增大,其增长幅度基本上与传热系数增长幅度相同。
The evaluation criterion of the enhanced heat transfer on twisted tube has been given.Based experimentations,the performance characteristic on enhanced heat transfer and flow resistance of twisted tube were educed.The result shows that there is better enhanced heat transfer performance with low Reynolds number.And at the same time of enhanced heat transfer,the flow resistance coefficients get augment.The augment scale of enhanced heat transfer coefficient and flow resistance coefficient are almost the same level.

关键词(KeyWords): 螺旋扁管;强化传热;评价准则
twisted tube;enhanced heat transfer;evaluation criterion

Abstract:

Keywords:

基金项目(Foundation): 湖南省教育厅基金资助项目(03C422);; 衡阳市科技计划项目(200415)

作者(Author): 卿德藩;邹家柱;
QING De-fan,ZOU Jia-zhu(Nanhua University,Hengyang 421001,China)

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