Shell-side heat transfer enhancement of a novel longitudinal flow oil cooler

被引：0
|
作者：
Liu S. [1 ,2 ,3 ]
Mo X. [1 ,2 ,3 ]
Tu A. [1 ,2 ,3 ]
Zhu D. [1 ,2 ,3 ]
Tan L. [4 ]
机构：
[1] Guangzhou Institute of Energy Conversion, Chinese Academy of Sciences, Guangdong, Guangzhou
[2] CAS Key Laboratory of Renewable Energy, Guangdong, Guangzhou
[3] Guangdong Key Laboratory, New and Renewable Energy Research and Development, Guangdong, Guangzhou
[4] Foshan Bulu Energy Saving Technology Co., Ltd., Guangdong, Foshan
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2022年 / 41卷 / 07期
关键词：
heat transfer enhancement; longitudinal flow heat exchanger; low Re; oil cooler; twisted trifoliate tube;
D O I：
10.16085/j.issn.1000-6613.2021-1879
中图分类号：
学科分类号：
摘要：
In this paper, a heat transfer enhancement scheme for the novel twisted trifoliate tube longitudinal flow oil cooler was proposed. The heat transfer and pressure drop performance of the shell side of twisted trifoliate tube oil cooler was experimentally investigated and compared to the twisted oval tube oil cooler and conventional segmental baffle oil cooler. The experimental results showed that under the same oil flow rate, the shell-side heat transfer coefficient, pressure drop and h/∆ p of the twisted trifoliate tube oil cooler were 138.7%—190.5%, 19.6%—37.8% and 77.2%—130.4% higher than that of the conventional segmental baffle oil cooler, and were 257.8%—298.6%, 140.5%—158.4% and 40.1%—65.7% higher than that of the twisted elliptical tube oil cooler, respectively. The results proved the twisted trifoliate tube oil cooler had a good heat transfer enhancement effect. The mechanism of heat transfer enhancement was also analyzed. Based on the experimental data, the correlations of Nu and f on the shell side of twisted trifoliate tube and twisted oval tube oil cooler were deduced with Re ranging from 80 to 550. © 2022 Chemical Industry Press. All rights reserved.
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页码：3475 / 3482
页数：7
相关论文
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