Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints
The finite element simulation method was used to obtain the distribution of contact stress between the fin and the base pipe. It is proposed that the overall contact stress is not just the average value of the node contact stress, and a more reasonable method of calculation method is proposed. A hea...
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| Format: | Article |
| Language: | zho |
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Journal of Refrigeration Magazines Agency Co., Ltd.
2020-01-01
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| Series: | Zhileng xuebao |
| Subjects: | |
| Online Access: | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.03.038 |
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| _version_ | 1850071676589441024 |
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| author | Li Sisi Ouyang Xinping Xia Rongxin Li Donglei |
| author_facet | Li Sisi Ouyang Xinping Xia Rongxin Li Donglei |
| author_sort | Li Sisi |
| collection | DOAJ |
| description | The finite element simulation method was used to obtain the distribution of contact stress between the fin and the base pipe. It is proposed that the overall contact stress is not just the average value of the node contact stress, and a more reasonable method of calculation method is proposed. A heat transfer performance test of a sleeve-type heat exchanger was undertaken to determine the contact thermal resistance between the fin and the base pipe. The correlation between the overall contact stress and the contact thermal resistance was established. The finite element simulation method was used to determine the overall contact stress under various expansion factors, and to determine the optimal process dimension. Finally, the contact stress value calculated by the elastoplastic theory was used for internal verification. The relative deviation between the contact stress calculated using elastoplastic theory and the simulated value was small (7.3%). |
| format | Article |
| id | doaj-art-ae1fc706294c4c078370337771ea5e2e |
| institution | DOAJ |
| issn | 0253-4339 |
| language | zho |
| publishDate | 2020-01-01 |
| publisher | Journal of Refrigeration Magazines Agency Co., Ltd. |
| record_format | Article |
| series | Zhileng xuebao |
| spelling | doaj-art-ae1fc706294c4c078370337771ea5e2e2025-08-20T02:47:15ZzhoJournal of Refrigeration Magazines Agency Co., Ltd.Zhileng xuebao0253-43392020-01-014166507848Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin JointsLi SisiOuyang XinpingXia RongxinLi DongleiThe finite element simulation method was used to obtain the distribution of contact stress between the fin and the base pipe. It is proposed that the overall contact stress is not just the average value of the node contact stress, and a more reasonable method of calculation method is proposed. A heat transfer performance test of a sleeve-type heat exchanger was undertaken to determine the contact thermal resistance between the fin and the base pipe. The correlation between the overall contact stress and the contact thermal resistance was established. The finite element simulation method was used to determine the overall contact stress under various expansion factors, and to determine the optimal process dimension. Finally, the contact stress value calculated by the elastoplastic theory was used for internal verification. The relative deviation between the contact stress calculated using elastoplastic theory and the simulated value was small (7.3%).http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.03.038mechanical expansionnumerical simulationcontact thermal resistancethermoelectric analogyoptimal design |
| spellingShingle | Li Sisi Ouyang Xinping Xia Rongxin Li Donglei Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints Zhileng xuebao mechanical expansion numerical simulation contact thermal resistance thermoelectric analogy optimal design |
| title | Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints |
| title_full | Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints |
| title_fullStr | Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints |
| title_full_unstemmed | Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints |
| title_short | Thermal Resistance Analysis and Numerical Optimization of Mechanical Expanded Tube-to-Fin Joints |
| title_sort | thermal resistance analysis and numerical optimization of mechanical expanded tube to fin joints |
| topic | mechanical expansion numerical simulation contact thermal resistance thermoelectric analogy optimal design |
| url | http://www.zhilengxuebao.com/thesisDetails#10.3969/j.issn.0253-4339.2020.03.038 |
| work_keys_str_mv | AT lisisi thermalresistanceanalysisandnumericaloptimizationofmechanicalexpandedtubetofinjoints AT ouyangxinping thermalresistanceanalysisandnumericaloptimizationofmechanicalexpandedtubetofinjoints AT xiarongxin thermalresistanceanalysisandnumericaloptimizationofmechanicalexpandedtubetofinjoints AT lidonglei thermalresistanceanalysisandnumericaloptimizationofmechanicalexpandedtubetofinjoints |