MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA
This paper presents the results of an analysis of flow distribution in VVER-1000 mixed core consisting of fuel assemblies with non-identical spacing grids. The calculation was carried out using the modified subchannel code SUBCAL-AZ which allows to calculate 3D thermal-hydraulic characteristics of t...
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| Language: | English |
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Czech Technical University in Prague
2018-12-01
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| Series: | Acta Polytechnica CTU Proceedings |
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| Online Access: | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5223 |
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| author | Vojtěch Caha Jiří Čížek |
| author_facet | Vojtěch Caha Jiří Čížek |
| author_sort | Vojtěch Caha |
| collection | DOAJ |
| description | This paper presents the results of an analysis of flow distribution in VVER-1000 mixed core consisting of fuel assemblies with non-identical spacing grids. The calculation was carried out using the modified subchannel code SUBCAL-AZ which allows to calculate 3D thermal-hydraulic characteristics of the coolant flow in the full core subchannel model coupled with the neutron-physical code ANDREA. This full core subchannel model was created in three variants depending on the ANDREA calculations. The first variant (homogeneous core) consisted of 163 hydraulically identical fuel assemblies TVSA-T mod.2, whereas the other variants (mixed cores) consisted of fuel assemblies TVSA-T mod.0, mod.1 and mod.2. These fuel assemblies mainly differ in types, number and axial coordinate of spacing grids and also in diameter of guide tubes. The influence of mixed core to flow distribution was obtained by comparing these variants. |
| format | Article |
| id | doaj-art-ead6f3cbb73d44b1ba0209aaeab4c71a |
| institution | Kabale University |
| issn | 2336-5382 |
| language | English |
| publishDate | 2018-12-01 |
| publisher | Czech Technical University in Prague |
| record_format | Article |
| series | Acta Polytechnica CTU Proceedings |
| spelling | doaj-art-ead6f3cbb73d44b1ba0209aaeab4c71a2025-08-20T03:57:54ZengCzech Technical University in PragueActa Polytechnica CTU Proceedings2336-53822018-12-011901610.14311/APP.2018.19.00014291MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREAVojtěch CahaJiří ČížekThis paper presents the results of an analysis of flow distribution in VVER-1000 mixed core consisting of fuel assemblies with non-identical spacing grids. The calculation was carried out using the modified subchannel code SUBCAL-AZ which allows to calculate 3D thermal-hydraulic characteristics of the coolant flow in the full core subchannel model coupled with the neutron-physical code ANDREA. This full core subchannel model was created in three variants depending on the ANDREA calculations. The first variant (homogeneous core) consisted of 163 hydraulically identical fuel assemblies TVSA-T mod.2, whereas the other variants (mixed cores) consisted of fuel assemblies TVSA-T mod.0, mod.1 and mod.2. These fuel assemblies mainly differ in types, number and axial coordinate of spacing grids and also in diameter of guide tubes. The influence of mixed core to flow distribution was obtained by comparing these variants.https://ojs.cvut.cz/ojs/index.php/APP/article/view/5223subchannel analysis, SUBCAL, mixed core, code coupling, VVER-1000 |
| spellingShingle | Vojtěch Caha Jiří Čížek MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA Acta Polytechnica CTU Proceedings subchannel analysis, SUBCAL, mixed core, code coupling, VVER-1000 |
| title | MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA |
| title_full | MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA |
| title_fullStr | MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA |
| title_full_unstemmed | MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA |
| title_short | MIXED CORE SUBCHANNEL MODEL FOR SUBCAL AND COUPLING WITH ANDREA |
| title_sort | mixed core subchannel model for subcal and coupling with andrea |
| topic | subchannel analysis, SUBCAL, mixed core, code coupling, VVER-1000 |
| url | https://ojs.cvut.cz/ojs/index.php/APP/article/view/5223 |
| work_keys_str_mv | AT vojtechcaha mixedcoresubchannelmodelforsubcalandcouplingwithandrea AT jiricizek mixedcoresubchannelmodelforsubcalandcouplingwithandrea |