Research on flow testing and correction method for parallel multi-branch liquid cooling system
The flow testing of parallel multi-branch liquid cooling systems often yields inaccurate results, due to the resistance introduced by an additional flow meter connected and temperature changes of the liquid cooling medium during the testing process. In this paper, a novel flow testing and correction...
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| Format: | Article |
| Language: | zho |
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Editorial Department of Electric Drive for Locomotives
2024-11-01
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| Series: | 机车电传动 |
| Subjects: | |
| Online Access: | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.101 |
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| _version_ | 1850274402148548608 |
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| author | WU Hui HE Kai LI Hua KUANG Jia LUO Qian |
| author_facet | WU Hui HE Kai LI Hua KUANG Jia LUO Qian |
| author_sort | WU Hui |
| collection | DOAJ |
| description | The flow testing of parallel multi-branch liquid cooling systems often yields inaccurate results, due to the resistance introduced by an additional flow meter connected and temperature changes of the liquid cooling medium during the testing process. In this paper, a novel flow testing and correction method was proposed to address this issue. Based on the liquid cooling system of a specific traction converter used in EMU and locomotives, the accuracy of the proposed flow testing and correction method was verified, indicating a flow correction error within 4%. By building a digital model of the parallel multi-branch liquid cooling system for the traction converter, the influence of variables on the flow testing and correction method was studied, such as the temperatures of the liquid cooling medium and the numbers of disconnected branches. The results showed that the maximum deviation of flows measured by the flow testing tool reached 4.6%, when the cooling medium temperature changed by 20 ℃. Variations in the cooling medium temperature during the three testing rounds exhibited little effect on the flow correction method. Increasing the number of branches disconnected in the third testing round led to an improvement of the flow correction method, yielding a lower error. For the flow testing and correction method with multiple variables, the maximum error between the corrected results and real values was only 3.2%, which was consistent with the testing results. This further demonstrated the reliability of the flow correction method and its application potential in engineering practices. |
| format | Article |
| id | doaj-art-2b4c08eb5ad344d9911b6b601bb0b479 |
| institution | OA Journals |
| issn | 1000-128X |
| language | zho |
| publishDate | 2024-11-01 |
| publisher | Editorial Department of Electric Drive for Locomotives |
| record_format | Article |
| series | 机车电传动 |
| spelling | doaj-art-2b4c08eb5ad344d9911b6b601bb0b4792025-08-20T01:51:09ZzhoEditorial Department of Electric Drive for Locomotives机车电传动1000-128X2024-11-0111212082049020Research on flow testing and correction method for parallel multi-branch liquid cooling systemWU HuiHE KaiLI HuaKUANG JiaLUO QianThe flow testing of parallel multi-branch liquid cooling systems often yields inaccurate results, due to the resistance introduced by an additional flow meter connected and temperature changes of the liquid cooling medium during the testing process. In this paper, a novel flow testing and correction method was proposed to address this issue. Based on the liquid cooling system of a specific traction converter used in EMU and locomotives, the accuracy of the proposed flow testing and correction method was verified, indicating a flow correction error within 4%. By building a digital model of the parallel multi-branch liquid cooling system for the traction converter, the influence of variables on the flow testing and correction method was studied, such as the temperatures of the liquid cooling medium and the numbers of disconnected branches. The results showed that the maximum deviation of flows measured by the flow testing tool reached 4.6%, when the cooling medium temperature changed by 20 ℃. Variations in the cooling medium temperature during the three testing rounds exhibited little effect on the flow correction method. Increasing the number of branches disconnected in the third testing round led to an improvement of the flow correction method, yielding a lower error. For the flow testing and correction method with multiple variables, the maximum error between the corrected results and real values was only 3.2%, which was consistent with the testing results. This further demonstrated the reliability of the flow correction method and its application potential in engineering practices.http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.101multi-branchliquid coolingsimulationflow testingflow correction |
| spellingShingle | WU Hui HE Kai LI Hua KUANG Jia LUO Qian Research on flow testing and correction method for parallel multi-branch liquid cooling system 机车电传动 multi-branch liquid cooling simulation flow testing flow correction |
| title | Research on flow testing and correction method for parallel multi-branch liquid cooling system |
| title_full | Research on flow testing and correction method for parallel multi-branch liquid cooling system |
| title_fullStr | Research on flow testing and correction method for parallel multi-branch liquid cooling system |
| title_full_unstemmed | Research on flow testing and correction method for parallel multi-branch liquid cooling system |
| title_short | Research on flow testing and correction method for parallel multi-branch liquid cooling system |
| title_sort | research on flow testing and correction method for parallel multi branch liquid cooling system |
| topic | multi-branch liquid cooling simulation flow testing flow correction |
| url | http://edl.csrzic.com/thesisDetails#10.13890/j.issn.1000-128X.2024.05.101 |
| work_keys_str_mv | AT wuhui researchonflowtestingandcorrectionmethodforparallelmultibranchliquidcoolingsystem AT hekai researchonflowtestingandcorrectionmethodforparallelmultibranchliquidcoolingsystem AT lihua researchonflowtestingandcorrectionmethodforparallelmultibranchliquidcoolingsystem AT kuangjia researchonflowtestingandcorrectionmethodforparallelmultibranchliquidcoolingsystem AT luoqian researchonflowtestingandcorrectionmethodforparallelmultibranchliquidcoolingsystem |