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題名 | Calculation of Core Melt Fraction Following a Large Break LOCA in Swimming Pool Type Research Reactors=水池式研究反應器大量冷卻水流失事故後爐心熔化分率之計算 |
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作者姓名(外文) | Shoaib Raza,S.; Salahuddin,A.; | 書刊名 | 核子科學 |
卷期 | 34:4 1997.08[民86.08] |
頁次 | 頁265-270 |
分類號 | 449.2 |
關鍵詞 | 水池式; 反應器; 冷卻水流失; 爐心; 熔化; 分率; LOCA; Research reactor; Core meltdown; |
語文 | 英文(English) |
英文摘要 | Analysis of a large break LOCA has been performed for swimming pool type research reactors. The fission products decay heat produced in the core after reactor shutdown was calculated. The core temperature rise rate and the fuel clad melt fraction were determined using the analytical techniques. The calculations were performed for 10 MW steady state operational power level of the reactor The results indicated that the core (after conplete loss of coolant) would attain a temperature of 600 ℃ (the clad melting limit) in about 6 min. A complete clad meltdown was predicted in another about 10 min. This time was important for the design. of any engineered safety system like the Emergency Core Cooling System (ECCS) . It was concluded that an instantaneous release of fission products could be assumed, for radiological consequence analysis of the research reactors. |
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