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원자력발전소 중대사고시 소외결말분석상에 방사선원항 특성의 영향
한석중 ( Seok Jung Han ),안광일 ( Kwang Ll Ahn ) 한국안전학회(구 한국산업안전학회) 2013 한국안전학회지 Vol.28 No.7
The effects of the radiological source term characteristics on an off-site consequence analysis owing to severe accident of a unclear power plants have been examined. The typical source tem features, i.e., (1) plume characteristics of release time and duration, (2) aerosol size, and (3) sensible heat, were derived from the MELCOR code as a severe accident code. Their effects on off-site consequence were examined according to a sensitivity analysis approach for each parameter. The results showed that the release time and duration had a considerable effect on a consequence, but the aerosol size and the sensible heat had a limited effect. Based on the obtained insights, it is recommended that it is necessary to apply the source term features to consequence analysis. A further study is recommended to utilize this key finding for a precise estimation of the source term.