叉排三维外肋管的传热特性

doi:10.11949/j.issn.0438-1157.20170315

化工学报 ›› 2017, Vol. 68 ›› Issue (10): 3733-3738.DOI: 10.11949/j.issn.0438-1157.20170315

叉排三维外肋管的传热特性

葛铭¹, 赵利杰², 戴维葆¹, 蔡培¹, 舒少辛³, 杨海瑞⁴, 吕俊复⁴

1 国电科学技术研究院, 江苏南京 210031;
2 北京兆阳光热技术有限公司, 北京 101102;
3 江苏海德节能科技有限公司, 江苏无锡 214215;
4 清华大学热能工程系, 北京 100084

收稿日期:2017-03-29 修回日期:2017-08-31 出版日期:2017-10-05 发布日期:2017-10-05
通讯作者: 吕俊复,lvjf@mail.tsinghua.edu.cn
基金资助:
国家重点研发计划项目（2016YFB0600203）。

Heat transfer of staggered three-dimensional externally finned tube

GE Ming¹, ZHAO Lijie², DAI Weibao¹, CAI Pei¹, SHU Shaoxin³, YANG Hairui⁴, LÜ Junfu⁴

1 Guodian Science and Technology Research Institute, Nanjing 210031, Jiangsu, China;
2 Beijing Tera Solar Photothermal Technologies Co., Ltd., Beijing 101102, China;
3 Hi-Tech(Jiangsu) Research & Science Co., Ltd., Wuxi 214215, Jiangsu, China;
4 Department of Thermal Engineering, Tsinghua University, Beijing 100084, China

Received:2017-03-29 Revised:2017-08-31 Online:2017-10-05 Published:2017-10-05
Supported by:
supported by the National Key Research and Development Program of China(2016YFB0600203).

摘要/Abstract

摘要：

以纯净水为换热工质，空气为换热气体，搭建了换热实验台。对光管和叉排三维外肋管进行了传热实验研究。详细介绍了传热实验台的搭建以及实验步骤，并为求解传热系数进行了理论模型的推导。结果发现，由于叉排三维外肋管的特殊结构，相同条件下其传热系数是光管传热系数的3.1倍左右。对光管和外肋管的传热系数进行线性拟合，得到了各自的换热关联式，为叉排三维外肋管的工业应用提供了参考。最后对实验数据进行了误差分析，实验数据可信。

关键词: 叉排三维外肋管, 强化传热, 传热系数, 实验研究

Abstract:

Heat transfer test rig had been built with pure water as heat transfer medium and air as heat transfer gas.Heat transfer experimental investigation on circle tube and staggered three-dimensional externally finned tube had been carried out.The building of test rig and experimental procedure had been introduced in details accompany with the theoretical model being derived for solving heat transfer coefficients.It was found that due to the special structure of staggered three-dimensional externally finned tube,its overall heat transfer coefficient is 3.1 times bigger than that of circular tube.By a linear regressive method,the experimental data were processed.The criterion relations of heat transfer were obtained and compared with circular tube.The results could provide reference for the industrial application.Finally,the deviation of the experimental data is analyzed and the result is believable.

Key words: staggered three-dimensional externally finned tube, enhanced heat transfer, overall heat transfer, experimental research

中图分类号:

TQ021.3

葛铭, 赵利杰, 戴维葆, 蔡培, 舒少辛, 杨海瑞, 吕俊复. 叉排三维外肋管的传热特性[J]. 化工学报, 2017, 68(10): 3733-3738.

GE Ming, ZHAO Lijie, DAI Weibao, CAI Pei, SHU Shaoxin, YANG Hairui, LÜ Junfu. Heat transfer of staggered three-dimensional externally finned tube[J]. CIESC Journal, 2017, 68(10): 3733-3738.

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叉排三维外肋管的传热特性

Heat transfer of staggered three-dimensional externally finned tube

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