Assessment of two uncertainty quantification methods for source term analysis = 방사선원 분석을 위한 두가지 불확실성 정량화 방법의 평가

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Two methods of uncertainty quantification have been assessed for application to the source term analysis of Younggwang 3 & 4 using the MAAP code. The two methods of uncertainty analysis, i.e., the response surface method and the Latin hypercube sampling method, produced slightly different results for the empirical cumulative distribution function of the CsI release fraction from containment. In source term analysis, the response surface method has the relative merits in the importance and the sensitivity analyses and by this method, important qualitative information about the relation between the inputs and the output can be obtained. However, the calculated uncertainties of the CsI release fraction were large and the information was insufficient to generate an appropriate response surface. It was difficult to substitute a typical second order response surface model for the original code. Thus, it is found that it is difficult to ascertain the reliability of the response surface method. When the approximate model is not suitable, above advantages of the response surface method do not outweigh the lack of accuracy. The Latin hypercube method is preferred in this case. It is directly and easily implemented and does not require any trial to obtain an approximate model.
Advisors
Chun, Moon-Hyun전문헌
Description
한국과학기술원 : 원자력공학과,
Publisher
한국과학기술원
Issue Date
1994
Identifier
69274/325007 / 000923550
Language
eng
Description

학위논문(석사) - 한국과학기술원 : 원자력공학과, 1994.2, [ vii, 44 p. ]

URI
http://hdl.handle.net/10203/49316
Link
http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=69274&flag=dissertation
Appears in Collection
NE-Theses_Master(석사논문)
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