侧风环境下自然通风湿式冷却塔周向进风变化规律

被引：9

作者：

高明 ^{[1
]}

史月涛 ^{[1
]}

王妮妮 ^{[2
]}

孙奉仲 ^{[1
]}

平亚明 ^{[1
]}

机构：

[1] 山东大学能源与动力工程学院

[2] 山东电力工程咨询院

来源：

山东大学学报(工学版) | 2009年 / 39卷 / 03期

关键词：

侧风; 湿式冷却塔; 进风; 传热传质性能;

D O I：

暂无

中图分类号：

TB65 [制冷机械和设备];

学科分类号：

0807 ; 080705 ;

摘要：

研究了自然通风湿式冷却塔底部周向进风随着外界侧风变化的规律,整个研究在一个热态模型冷却塔试验台上进行.研究表明:无风时,塔底周向进风是均匀轴对称的,即塔内填料各处的传热传质性能也是轴对称分布的.但侧风环境下,外界侧风破坏了冷却塔底部周向进风的轴对称分布规律,侧风风速大于0.2 m/s时各处进风越不均匀.与无风工况相比,当侧风风速为0.5 m/s时,迎风面进风口风速为无风时的1.875倍,而背风面进风口风速仅为无风时的30%.因此,外界侧风影响了进入塔内的总体通风量,恶化了塔内的传热传质性能.

引用

页码：154 / 158

页数：5

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