Deterministic analysis of emergency AC power recovery during SB-LOCA along with LOOP accident in Bushehr nuclear power plant
The availability of current AC electrical power is essential for the safe operation and accident recovery of commercial nuclear power plants. Loss of offsite power (LOOP) considers as one of the significant post-Fukushima accidents. When the onsite diesel generators are not recovered in the power pl...
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| Format: | Article |
| Language: | fas |
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Nuclear Science and Technology Research Institute
2021-06-01
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| Series: | مجله علوم و فنون هستهای |
| Subjects: | |
| Online Access: | https://jonsat.nstri.ir/article_1209_981a4ff4cb9dfe2bea2f13886b4b4afb.pdf |
| _version_ | 1797835403794841600 |
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| author | S.A. Hosseini A.S. Shirani |
| author_facet | S.A. Hosseini A.S. Shirani |
| author_sort | S.A. Hosseini |
| collection | DOAJ |
| description | The availability of current AC electrical power is essential for the safe operation and accident recovery of commercial nuclear power plants. Loss of offsite power (LOOP) considers as one of the significant post-Fukushima accidents. When the onsite diesel generators are not recovered in the power plant, the accident encounters with station blackout (SBO) situation. In this study, the emergency AC power recovery is investigated during SB-LOCA along with LOOP accident for 25 mm, 50 mm, and 100 mm breaks with RELAP5 thermal-hydronic. Likewise, in evaluating the emergency power recovery scenario, the power plant's recovery in the first and second hours has been investigated. The results showed that in the first hour of emergency power recovery, the reactor is not reached the core damage threshold in all three breaks. Meanwhile, in the second hour of emergency power recovery for 25 mm and 50 mm, the reactor core reaches to core damage threshold before the emergency diesel generators are activated. Therefore, the results show that in SB-LOCAs with a lack of emergency power recovery, there is a chance to recover emergency power and safety systems at least until the first hour. |
| first_indexed | 2024-04-09T14:53:30Z |
| format | Article |
| id | doaj.art-aa8c61bfaa6342ae8f59f0860fe34862 |
| institution | Directory Open Access Journal |
| issn | 1735-1871 2676-5861 |
| language | fas |
| last_indexed | 2024-04-09T14:53:30Z |
| publishDate | 2021-06-01 |
| publisher | Nuclear Science and Technology Research Institute |
| record_format | Article |
| series | مجله علوم و فنون هستهای |
| spelling | doaj.art-aa8c61bfaa6342ae8f59f0860fe348622023-05-02T09:06:10ZfasNuclear Science and Technology Research Instituteمجله علوم و فنون هستهای1735-18712676-58612021-06-0142212213110.24200/nst.2021.12091209Deterministic analysis of emergency AC power recovery during SB-LOCA along with LOOP accident in Bushehr nuclear power plantS.A. Hosseini0A.S. Shirani1Faculty of Engineering, Shahid Beheshti University, P.O.Box: 1983969411, Tehran – IranFaculty of Engineering, Shahid Beheshti University, P.O.Box: 1983969411, Tehran – IranThe availability of current AC electrical power is essential for the safe operation and accident recovery of commercial nuclear power plants. Loss of offsite power (LOOP) considers as one of the significant post-Fukushima accidents. When the onsite diesel generators are not recovered in the power plant, the accident encounters with station blackout (SBO) situation. In this study, the emergency AC power recovery is investigated during SB-LOCA along with LOOP accident for 25 mm, 50 mm, and 100 mm breaks with RELAP5 thermal-hydronic. Likewise, in evaluating the emergency power recovery scenario, the power plant's recovery in the first and second hours has been investigated. The results showed that in the first hour of emergency power recovery, the reactor is not reached the core damage threshold in all three breaks. Meanwhile, in the second hour of emergency power recovery for 25 mm and 50 mm, the reactor core reaches to core damage threshold before the emergency diesel generators are activated. Therefore, the results show that in SB-LOCAs with a lack of emergency power recovery, there is a chance to recover emergency power and safety systems at least until the first hour.https://jonsat.nstri.ir/article_1209_981a4ff4cb9dfe2bea2f13886b4b4afb.pdfbushehr nuclear power plantdeterministic safety assessmentsb-localoss of offsite powerstation black-outrelap5 |
| spellingShingle | S.A. Hosseini A.S. Shirani Deterministic analysis of emergency AC power recovery during SB-LOCA along with LOOP accident in Bushehr nuclear power plant مجله علوم و فنون هستهای bushehr nuclear power plant deterministic safety assessment sb-loca loss of offsite power station black-out relap5 |
| title | Deterministic analysis of emergency AC power recovery during
SB-LOCA along with LOOP accident in Bushehr nuclear power plant |
| title_full | Deterministic analysis of emergency AC power recovery during
SB-LOCA along with LOOP accident in Bushehr nuclear power plant |
| title_fullStr | Deterministic analysis of emergency AC power recovery during
SB-LOCA along with LOOP accident in Bushehr nuclear power plant |
| title_full_unstemmed | Deterministic analysis of emergency AC power recovery during
SB-LOCA along with LOOP accident in Bushehr nuclear power plant |
| title_short | Deterministic analysis of emergency AC power recovery during
SB-LOCA along with LOOP accident in Bushehr nuclear power plant |
| title_sort | deterministic analysis of emergency ac power recovery during sb loca along with loop accident in bushehr nuclear power plant |
| topic | bushehr nuclear power plant deterministic safety assessment sb-loca loss of offsite power station black-out relap5 |
| url | https://jonsat.nstri.ir/article_1209_981a4ff4cb9dfe2bea2f13886b4b4afb.pdf |
| work_keys_str_mv | AT sahosseini deterministicanalysisofemergencyacpowerrecoveryduringsblocaalongwithloopaccidentinbushehrnuclearpowerplant AT asshirani deterministicanalysisofemergencyacpowerrecoveryduringsblocaalongwithloopaccidentinbushehrnuclearpowerplant |