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首页> 外文期刊>International Journal of Heat and Mass Transfer >Heat and momentum transfer for compact louvered fin- and-tube heat exchangers in wet conditions
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Heat and momentum transfer for compact louvered fin- and-tube heat exchangers in wet conditions

机译：潮湿条件下紧凑型百叶窗翅片管换热器的热量和动量传递

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摘要

The air side performances of two louvered fin surfaces under dehumidifying conditions were examined in this study. The test results indicated that the effect of fin pitch on the heat transfer performance is comparatively small. and the friction factors increase significantly with fin pitch for fully wet conditions. The effect of inlet relative humidity on the sensible heat transfer performance is negligible. However, there is a detectable effect of inlet condition on the friction factors for type (I) louver due to condensate retention. A correlation of heat, momentum, and mass transfer was proposed to correlate the present database with a mean deviation of 5.94/100, 6.l/100, and 7.89/100, respectively.
机译：在这项研究中，研究了在除湿条件下两个百叶窗式散热片表面的空气侧性能。试验结果表明，翅片间距对传热性能的影响较小。在完全湿润的条件下，摩擦系数随翅片间距的增加而显着增加。入口相对湿度对显热传递性能的影响可以忽略不计。但是，由于冷凝物的滞留，进气条件对（I）型百叶窗的摩擦系数有可检测的影响。提出了热，动量和传质的相关性，以使当前数据库的平均偏差分别为5.94 / 100、6.1.l / 100和7.89 / 100。

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