Sensible heat and friction characteristics of plate fin-and-tube heat exchangers having plane fins
Sensible heat and friction characteristics of plate fin-and-tube heat exchangers having plane fins
复制标题
DOI：
10.1016/0140-7007(96)00021-7
复制
发表时间：
1996-05
期刊：
影响因子：
--
通讯作者：
Chi-Chuan Wang;Yu-Juei Chang;Y. Hsieh;Yur-Tsai Lin
中科院分区：
文献类型：
--
作者：
Chi-Chuan Wang;Yu-Juei Chang;Y. Hsieh;Yur-Tsai Lin
在本研究中，在诱导流开放式风洞中对15个具有不同几何参数（包括管排数、翅片间距和翅片厚度）的板翅式换热器样品进行了测试和比较。结果以摩擦系数和 Colburn j 系数相对于雷诺数的形式呈现，管环直径范围为 300 至 7500。还报告了与现有板翅相关性的比较。发现翅片间距不影响传热系数。管排数对摩擦系数的影响可以忽略不计，翅片厚度不影响传热或摩擦特性。
In the present study, 15 samples of plate fin heat exchangers with different geometrical parameters, including the number of tube rows, fin spacing and fin thickness are tested and compared in an induced flow open wind tunnel. Results are presented in the form of friction factor and Colburn j-factor against Reynolds number based on the tube collar diameter in the range of 300 to 7500. Comparisons with the existing plate fin correlation are also reported. It is found that the fin spacing does not affect the heat-transfer coefficient. The number of tube rows has negligible effect on the friction factor, and the fin thickness does not affect the heat-transfer or friction characteristics.