Break location influence in pressure vessel SBLOCA scenarios
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| Natura: | Artículo científico |
| Lingua: | en |
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Sociedade Brasileira de Proteção Radiológica - SBPR
2020
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| _version_ | 1876462074640465920 |
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| author | M. Lorduy |
| author_facet | M. Lorduy |
| contents | Break location influence in pressure vessel SBLOCA scenarios M. Lorduy A. Querol S. Gallardo G. Verdú Biología SBLOCA AM actions The inspections performed in Davis Besse and the South Texas Project Unit-I reactors pointed out safety issues regarding the structural integrity of the Pressure Vessel (PV). In these inspections, two anomalies were found: a wall thinning and degradation in the PV upper head of the Davis Besse reactor and a small amount of residue around two instrument-tube penetration nozzles located in the PV lower plenum of the South Texas Project Unit-I reactor. The evolution of these defects could have resulted in Small Break Loss-Of-Coolant Accidents (SBLOCA) if they had not been detected in time. In this frame, the OECD/NEA considered the necessity to simulate these accidental sequences in the OECD/NEA ROSA Project using the Large Scale Test Facility (LSTF). This work is focused on simulating different hypothetical accidental scenarios in the PV using the thermalhydraulic code TRACE5. These simulations allow studying the break localization influence in the transient and the effectiveness of the accident management (AM) actions considered mitigating the consequences of these hypothetical accidental scenarios. 2020 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280926016 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3B Vol.8 |
| format | Artículo científico |
| id | redalyc_722280926016 |
| institution | Redalyc |
| language | en |
| publishDate | 2020 |
| publisher | Sociedade Brasileira de Proteção Radiológica - SBPR |
| spellingShingle | Break location influence in pressure vessel SBLOCA scenarios M. Lorduy Biología SBLOCA AM actions Break location influence in pressure vessel SBLOCA scenarios M. Lorduy A. Querol S. Gallardo G. Verdú Biología SBLOCA AM actions The inspections performed in Davis Besse and the South Texas Project Unit-I reactors pointed out safety issues regarding the structural integrity of the Pressure Vessel (PV). In these inspections, two anomalies were found: a wall thinning and degradation in the PV upper head of the Davis Besse reactor and a small amount of residue around two instrument-tube penetration nozzles located in the PV lower plenum of the South Texas Project Unit-I reactor. The evolution of these defects could have resulted in Small Break Loss-Of-Coolant Accidents (SBLOCA) if they had not been detected in time. In this frame, the OECD/NEA considered the necessity to simulate these accidental sequences in the OECD/NEA ROSA Project using the Large Scale Test Facility (LSTF). This work is focused on simulating different hypothetical accidental scenarios in the PV using the thermalhydraulic code TRACE5. These simulations allow studying the break localization influence in the transient and the effectiveness of the accident management (AM) actions considered mitigating the consequences of these hypothetical accidental scenarios. 2020 artículo científico 2319-0612 https://www.redalyc.org/articulo.oa?id=722280926016 en http://www.redalyc.org/revista.oa?id=7222 Brazilian Journal of Radiation Sciences application/pdf Sociedade Brasileira de Proteção Radiológica - SBPR Brazilian Journal of Radiation Sciences (Brasil) Num.3B Vol.8 |
| title | Break location influence in pressure vessel SBLOCA scenarios |
| topic | Biología SBLOCA AM actions |
| url | https://www.redalyc.org/articulo.oa?id=722280926016 |