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CFD-based structure optimization of plate bundle in plate-fin heat exchanger considering flow and heat transfer performance
International Journal of Chemical Reactor Engineering ( IF 1.6 ) Pub Date : 2021-05-01 , DOI: 10.1515/ijcre-2020-0219
Yao Li 1 , Haiqing Si 1 , Jingxuan Qiu 1 , Yingying Shen 1 , Peihong Zhang 2 , Hongyin Jia 2
Affiliation  

The plate-fin heat exchanger has been widely applied in the field of air separation and aerospace due to its high specific surface area of heat transfer. However, the low heat transfer efficiency of its plate bundles has also attracted more attention. It is of great significance to optimize the structure of plate-fin heat exchanger to improve its heat transfer efficiency. The plate bundle was studied by combining numerical simulation with experiment. Firstly, according to the heat and mass transfer theory, the plate bundle calculation model of plate-fin heat exchanger was established, and the accuracy of the UDF (User-Defined Functions) for describing the mass and heat transfer was verified. Then, the influences of fin structure parameters on the heat and mass transfer characteristics of channel were discussed, including the height, spacing, thickness and length of fins. Finally the influence of various factors on the flow field performance under different flow states was integrated to complete the optimal design of the plate bundle.

中文翻译:

考虑流动和传热性能的基于CFD的板翅式换热器板束结构优化

板翅式换热器由于其高的传热比表面积而被广泛应用于空气分离和航空航天领域。但是,其板束的​​低传热效率也引起了更多关注。优化板翅式换热器的结构对提高换热效率具有重要意义。通过数值模拟与实验相结合的方法对板束进行了研究。首先,根据传热传质理论,建立了板翅式换热器的板束计算模型,验证了用户自定义函数UDF的精确度。然后,讨论了翅片结构参数对通道传热和传质特性的影响,包括高度,间距,鳍的厚度和长度。最后,综合考虑了各种因素对不同流动状态下流场性能的影响,完成了板束的优化设计。
更新日期:2021-05-12
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