Investigation of header configuration and its effect on flow maldistribution in plate-fin heat exchanger

被引：0
|
作者：
Wen, J. [1 ]
Li, Y. Z. [1 ]
Zhang, K. [1 ]
机构：
[1] Xian Jiaotong Univ, Sch Energy & Power Engn, Xian 710049, Peoples R China
来源：
ICEC 20: PROCEEDINGS OF THE TWENTIETH INTERNATIONAL CRYOGENIC ENGINEERING CONFERENCE | 2005年
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D O I：
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中图分类号：
O414.1 [热力学];
学科分类号：
摘要：
In order to enhance the uniformity of flow distribution, a baffle with small holes of different diameters is recommended to install in the header. The flow maldistribution parameter S is obtained under different header configuration. When the baffle is properly installed with an optimum length, with stagger arranged and suitably distributed holes from axial line to baffle boundary, the ratio of the maximum velocity to the minimum drops from 3.04 similar to 3.44 to 1.57 similar to 1.68 for various Reynolds numbers. The improved configuration is of great significance in the improvement of plate-fin heat exchanger.
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页码：781 / 784
页数：4
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