Моделювання вимірювань термопар на виході з активної зони реактора ВВЕР-1000 за допомогою спареного коду ATHLET/BIPR-VVER
The aim of the performed study is to find a reliable correlation between the measured thermocouples values at core outlet of reactor WER-1000 with the coolant temperatures at the assemblies ’ outlets at these positions. Firstly, the solution is related with the correct interpretation of the measured...
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| Date: | 2007 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
| Published: |
State Scientific and Technical Center for Nuclear and Radiation Safety
2007
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| Online Access: | https://nuclear-journal.com/index.php/journal/article/view/1078 |
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| Journal Title: | Nuclear and Radiation Safety |
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Nuclear and Radiation Safety| Summary: | The aim of the performed study is to find a reliable correlation between the measured thermocouples values at core outlet of reactor WER-1000 with the coolant temperatures at the assemblies ’ outlets at these positions. Firstly, the solution is related with the correct interpretation of the measured results, and secondly with the correct modelling of the coolant flow at the location of the measuring device. Studies have been performed with the system coupled code ATHLET/BIPR-WER, which allows to model the thermal-hydraulics and kinetics processes in WER reactors in a 3D manner.
The analysis is based on local in-core measurements data collected during the commissioning phase of WER- 1000 NPP Kalinin-З [1]. The studied transient is a switch off of one main circulation pump at nominal power while the other there pumps remain in operation. |
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