Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel
Ampacity is an important parameter in power cable operation. In order to provide a reference for the operation of ultra-high voltage cables laid in tunnel,a three-dimensional geometric model is established to simulate the thermal-fluid coupling by COMSOL Multiphysics according to the actual cable tu...
| Main Authors: | , , , , , |
|---|---|
| Format: | Article |
| Language: | zho |
| Published: |
Editorial Department of Electric Power Engineering Technology
2022-05-01
|
| Series: | 电力工程技术 |
| Subjects: | |
| Online Access: | https://www.epet-info.com/dlgcjs/article/pdf/200722535 |
| _version_ | 1818478066559614976 |
|---|---|
| author | LIN Ziqi ZHOU He NIU Linhua FU Xiao LIU Yaozhong SUN Qiuqin |
| author_facet | LIN Ziqi ZHOU He NIU Linhua FU Xiao LIU Yaozhong SUN Qiuqin |
| author_sort | LIN Ziqi |
| collection | DOAJ |
| description | Ampacity is an important parameter in power cable operation. In order to provide a reference for the operation of ultra-high voltage cables laid in tunnel,a three-dimensional geometric model is established to simulate the thermal-fluid coupling by COMSOL Multiphysics according to the actual cable tunnel structure and internal cable arrangement. The distribution of temperature and wind velocity under different operating modes and environmental conditions is analyzed based on finite element method. The ampacity of tunnel ultra-high voltage cables is calculated. It is observed that the highest temperature appears at the conductor. The temperature decreases gradually along the radial direction of cable. Temperature and wind velocity at the exit are increased compared to the entrance. With the increase of current,the influence of cable heating on ambient temperature also increases. The steady-state load capacity of cable for double-loop or four-loop laying is higher than that for eight-loop laying. Cable surface temperature decreases with increasing ventilation rate. |
| first_indexed | 2024-12-10T09:43:37Z |
| format | Article |
| id | doaj.art-fead369c505e4edfbef2bddd7a60c91b |
| institution | Directory Open Access Journal |
| issn | 2096-3203 |
| language | zho |
| last_indexed | 2024-12-10T09:43:37Z |
| publishDate | 2022-05-01 |
| publisher | Editorial Department of Electric Power Engineering Technology |
| record_format | Article |
| series | 电力工程技术 |
| spelling | doaj.art-fead369c505e4edfbef2bddd7a60c91b2022-12-22T01:53:55ZzhoEditorial Department of Electric Power Engineering Technology电力工程技术2096-32032022-05-0141321622310.12158/j.2096-3203.2022.03.026Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnelLIN Ziqi0ZHOU He1NIU Linhua2FU Xiao3LIU Yaozhong4SUN Qiuqin5College of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaAnhui Electric Power Design Institute Co., Ltd., China Energy Engineering Group, Hefei 230601, ChinaAnhui Electric Power Design Institute Co., Ltd., China Energy Engineering Group, Hefei 230601, ChinaState Grid Hefei Power Supply Company of Anhui Electric Power Co., Ltd., Hefei 230601, ChinaAnhui Electric Power Design Institute Co., Ltd., China Energy Engineering Group, Hefei 230601, ChinaCollege of Electrical and Information Engineering, Hunan University, Changsha 410082, ChinaAmpacity is an important parameter in power cable operation. In order to provide a reference for the operation of ultra-high voltage cables laid in tunnel,a three-dimensional geometric model is established to simulate the thermal-fluid coupling by COMSOL Multiphysics according to the actual cable tunnel structure and internal cable arrangement. The distribution of temperature and wind velocity under different operating modes and environmental conditions is analyzed based on finite element method. The ampacity of tunnel ultra-high voltage cables is calculated. It is observed that the highest temperature appears at the conductor. The temperature decreases gradually along the radial direction of cable. Temperature and wind velocity at the exit are increased compared to the entrance. With the increase of current,the influence of cable heating on ambient temperature also increases. The steady-state load capacity of cable for double-loop or four-loop laying is higher than that for eight-loop laying. Cable surface temperature decreases with increasing ventilation rate.https://www.epet-info.com/dlgcjs/article/pdf/200722535thermal-fluid couplingfinite element methodampacitytemperature distributionfluid fieldcable tunnel |
| spellingShingle | LIN Ziqi ZHOU He NIU Linhua FU Xiao LIU Yaozhong SUN Qiuqin Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel 电力工程技术 thermal-fluid coupling finite element method ampacity temperature distribution fluid field cable tunnel |
| title | Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel |
| title_full | Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel |
| title_fullStr | Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel |
| title_full_unstemmed | Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel |
| title_short | Thermal-fluid coupling analysis of ultra-high voltage cables laid in tunnel |
| title_sort | thermal fluid coupling analysis of ultra high voltage cables laid in tunnel |
| topic | thermal-fluid coupling finite element method ampacity temperature distribution fluid field cable tunnel |
| url | https://www.epet-info.com/dlgcjs/article/pdf/200722535 |
| work_keys_str_mv | AT linziqi thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel AT zhouhe thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel AT niulinhua thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel AT fuxiao thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel AT liuyaozhong thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel AT sunqiuqin thermalfluidcouplinganalysisofultrahighvoltagecableslaidintunnel |