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http://dx.doi.org/10.5516/NET.2009.41.5.617

INVESTIGATIONS ON THE RESOLUTION OF SEVERE ACCIDENT ISSUES FOR KOREAN NUCLEAR POWER PLANTS  

Kim, Hee-Dong (Korea Atomic Energy Research Institute)
Kim, Dong-Ha (Korea Atomic Energy Research Institute)
Kim, Jong-Tae (Korea Atomic Energy Research Institute)
Kim, Sang-Baik (Korea Atomic Energy Research Institute)
Song, Jin-Ho (Korea Atomic Energy Research Institute)
Hong, Seong-Wan (Korea Atomic Energy Research Institute)
Publication Information
Nuclear Engineering and Technology / v.41, no.5, 2009 , pp. 617-648 More about this Journal
Abstract
Under the government supported long-term nuclear R&D program, the severe accident research program at KAERI is directed to investigate unresolved severe accident issues such as core debris coolability, steam explosions, and hydrogen combustion both experimentally and numerically. Extensive studies have been performed to evaluate the in-vessel retention of core debris through external reactor vessel cooling concept for APR1400 as a severe accident management strategy. Additionally, an improvement of the insulator design outside the vessel was investigated. To address steam explosions, a series of experiments using a prototypic material was performed in the TROI facility. Major parameters such as material composition and void fraction as well as the relevant physics affecting the energetics of steam explosions were investigated. For hydrogen control in Korean nuclear power plants, evaluation of the hydrogen concentration and the possibility of deflagration-to-detonation transition occurrence in the containment using three-dimensional analysis code, GASFLOW, were performed. Finally, the integrated severe accident analysis code, MIDAS, has been developed for domestication based on MELCOR. The data transfer scheme using pointers was restructured with the modules and the derived-type direct variables using FORTRAN90. New models were implemented to extend the capability of MIDAS.
Keywords
Severe Accidents; In-vessel Retention; Steam Explosion; Hydrogen Combustion; Severe Accident Analysis Code;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
Times Cited By Web Of Science : 2  (Related Records In Web of Science)
Times Cited By SCOPUS : 1
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