Subchannel Analysis of Wire Wrapped SCWR Assembly
Application of wire wrap spacers in SCWR can reduce pressure drop and obtain better mixing capability. As a consequence, the required coolant pumping power is decreased and the coolant temperature profile inside the fuel bundle is flattened which will obviously decrease the peak cladding temperature...
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| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Wiley
2014-01-01
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| Series: | Science and Technology of Nuclear Installations |
| Online Access: | http://dx.doi.org/10.1155/2014/301052 |
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| _version_ | 1832565112263671808 |
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| author | Jianqiang Shan Henan Wang Wei Liu Linxing Song Xuanxiang Chen Yang Jiang |
| author_facet | Jianqiang Shan Henan Wang Wei Liu Linxing Song Xuanxiang Chen Yang Jiang |
| author_sort | Jianqiang Shan |
| collection | DOAJ |
| description | Application of wire wrap spacers in SCWR can reduce pressure drop and obtain better mixing capability. As a consequence, the required coolant pumping power is decreased and the coolant temperature profile inside the fuel bundle is flattened which will obviously decrease the peak cladding temperature. The distributed resistance model for wire wrap was developed and implemented in ATHAS subchannel analysis code. The HPLWR wire wrapped assembly was analyzed. The results show that: (1) the assembly with wire wrap can obtain a more uniform coolant temperature profile than the grid spaced assembly, which will result in a lower peak cladding temperature; (2) the pressure drop in a wire wrapped assembly is less than that in a grid spaced assembly, which can reduce the operating power of pump effectively; (3) the wire wrap pitch has significant effect on the flow in the assembly. Smaller Hwire/Drod will result in stronger cross flow a more uniform coolant temperature profile, and also a higher pressure drop. |
| format | Article |
| id | doaj-art-9867d48bdf454de08e749e3c830fea79 |
| institution | Kabale University |
| issn | 1687-6075 1687-6083 |
| language | English |
| publishDate | 2014-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | Science and Technology of Nuclear Installations |
| spelling | doaj-art-9867d48bdf454de08e749e3c830fea792025-02-03T01:09:28ZengWileyScience and Technology of Nuclear Installations1687-60751687-60832014-01-01201410.1155/2014/301052301052Subchannel Analysis of Wire Wrapped SCWR AssemblyJianqiang Shan0Henan Wang1Wei Liu2Linxing Song3Xuanxiang Chen4Yang Jiang5Xi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaXi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaXi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaXi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaXi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaXi’an Jiaotong University, Xi’an, Shannxi 710049, ChinaApplication of wire wrap spacers in SCWR can reduce pressure drop and obtain better mixing capability. As a consequence, the required coolant pumping power is decreased and the coolant temperature profile inside the fuel bundle is flattened which will obviously decrease the peak cladding temperature. The distributed resistance model for wire wrap was developed and implemented in ATHAS subchannel analysis code. The HPLWR wire wrapped assembly was analyzed. The results show that: (1) the assembly with wire wrap can obtain a more uniform coolant temperature profile than the grid spaced assembly, which will result in a lower peak cladding temperature; (2) the pressure drop in a wire wrapped assembly is less than that in a grid spaced assembly, which can reduce the operating power of pump effectively; (3) the wire wrap pitch has significant effect on the flow in the assembly. Smaller Hwire/Drod will result in stronger cross flow a more uniform coolant temperature profile, and also a higher pressure drop.http://dx.doi.org/10.1155/2014/301052 |
| spellingShingle | Jianqiang Shan Henan Wang Wei Liu Linxing Song Xuanxiang Chen Yang Jiang Subchannel Analysis of Wire Wrapped SCWR Assembly Science and Technology of Nuclear Installations |
| title | Subchannel Analysis of Wire Wrapped SCWR Assembly |
| title_full | Subchannel Analysis of Wire Wrapped SCWR Assembly |
| title_fullStr | Subchannel Analysis of Wire Wrapped SCWR Assembly |
| title_full_unstemmed | Subchannel Analysis of Wire Wrapped SCWR Assembly |
| title_short | Subchannel Analysis of Wire Wrapped SCWR Assembly |
| title_sort | subchannel analysis of wire wrapped scwr assembly |
| url | http://dx.doi.org/10.1155/2014/301052 |
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