タイトル | シビアアクシデント発生時におけるPWRプラント挙動の基礎的研究(1): (1次系LOCA+ECCS 失敗)事故 |
その他のタイトル | Basic Study on PWR Plant Behavior under the Condition of Severe Accident (1) |
著者(日) | 尾崎, 禎彦; 井田, 将馬; 中村, 真也 |
著者(英) | Ozaki, Yoshihiko; Ida, Shohma; Nakamura, Shinya |
著者所属(日) | 福井工業大学; 福井工業大学; 福井工業大学 |
著者所属(英) | Fukui University of Technology; Fukui University of Technology; Fukui University of Technology |
発行日 | 2015-07-30 |
発行機関など | 福井工業大学 Fukui University of Technology |
刊行物名 | 福井工業大学研究紀要 Memoirs of Fukui University of Technology |
号 | 45 |
開始ページ | 293 |
終了ページ | 303 |
刊行年月日 | 2015-07-30 |
言語 | jpn eng |
抄録 | In this paper, we report on the results using the PWR plant simulator about the plant behavior under the condition of the severe accident that LOCA occurs but ECCS fails the water irrigation into the reactor core. As for the results about the relationship between the LOCA area and the time from LOCA occurs until fuel temperature rise start, the time became shorter as the area was the larger. But, in LOCA area of 1000cm2 or more large, the time was almost constant regardless of the area. For small LOCA of 25cm2 area, from the results of the comparative experiments for RCS natural circulation cooling effect in the case of SG open or not, in SG open condition compared with SG not open, the effect was observed more, but the reactor water level was greatly reduced and the time until the fuel temperature rise start was shortened, so the fuel temperature at the time of water irrigation into the reactor core has become higher. On the other hand, for the large LOCA of 1000cm2, the effect was not observed regardless of SG open or not. In addition, the reactor core damage was not spared in the irrigation into the reactor core after 30 minutes from LOCA, however, the hydrogen concentration in the containment building is less than the lower limit of hydrogen detonation, and also the pressure in the containment building is less than the designed value. That is, although suffered the core damage, the integrity of the containment building has been shown to be secured. |
内容記述 | 形態: カラー図版あり 形態: CD-ROM1枚 Physical characteristics: Original contains color illustrations Note: One CD-ROM |
キーワード | Nuclear Power Plant; Safety Assessment; Severe Accident; Severe Accident Management; Plant Behavior in Severe Accident; PWR Plant Simulator |
資料種別 | Departmental Bulletin Paper |
NASA分類 | Nuclear Physics |
ISSN | 1884-4456 |
NCID | AA12450746 |
SHI-NO | AA1540286010 |
URI | https://repository.exst.jaxa.jp/dspace/handle/a-is/556434 |
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