| 锯齿翅片紧凑式换热器的熵产分析 |
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| 引用本文： | 李大鹏,孙丰瑞.锯齿翅片紧凑式换热器的熵产分析[J].电站系统工程,1998,14(1):3-7. |
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| 作者姓名： | 李大鹏 孙丰瑞 |
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| 作者单位： | 武汉海军工程学院 |
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| 摘 要： | 对锯齿翅片紧凑式换热器进行了熵产分析，将熵产率与无肋情况进行了比较，引入参数Ｎ表征。对不同的热负荷情况，讨论了几何参数一定的换热器Ｎ随流动雷诺数变化情况。研究了肋条长度与水力直径之比和肋条厚度与水和直径之比、通道宽高比α＊对Ｎ的影响。
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| 关 键 词： | 锯齿翅片 紧凑换热器 熵产 |
Entropy Generation Analysis for Offset Strip Fin Compact Heat Exchangers |
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| Li Dapeng et al..Entropy Generation Analysis for Offset Strip Fin Compact Heat Exchangers[J].Power System Engineering,1998,14(1):3-7. |
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| Authors: | Li Dapeng |
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| Affiliation: | Li Dapeng et al. |
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| Abstract: | Entropy generation for Offset Strip Fin compact heat exchangers was analyzed in this papaer. The comditions between finned surfaces and unfinned surfaces were compared, which were expressed as entropy generction ratio N. N versus Reynolds number Re were investigated with different heat duty. The influence of δ/D h(δ : fin thickness, D h :hydraulic diameter), L ef /D h(L ef :fin length) and α *(aspect ratio α *= L 2/b 1, L 2: flow passage width, b 1: flow passage height) on N were discussed. |
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| Keywords: | Offset Strip Fin Compact Heat Exchanger Entropy Generation |
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