scholarly journals Simplification process of safety assessment model for engineered barrier system by using adjoint sensitivity analysis method.

1988 ◽  
Vol 30 (5) ◽  
pp. 450-459 ◽  
Author(s):  
Hiroyuki UMEKI ◽  
Masahiko KUROKI ◽  
Atsuyuki SUZUKI
Keyword(s):  
Sensitivity Analysis ◽  
Safety Assessment ◽  
Assessment Model ◽  
Adjoint Sensitivity Analysis ◽  
Analysis Method ◽  
Adjoint Sensitivity ◽  
Sensitivity Analysis Method ◽  
Engineered Barrier

Application of the Adjoint Sensitivity Method to the Analysis of a Supersonic Ejector

1984 ◽  
Vol 106 (4) ◽  
pp. 425-429 ◽  
Author(s):  
E. Wacholder ◽  
J. Dayan
Keyword(s):  
Sensitivity Analysis ◽  
Analysis Method ◽  
Adjoint Sensitivity ◽  
Supersonic Ejector ◽  
Sensitivity Analysis Method ◽  
Manufacturing Tolerances ◽  
Adjoint Functions ◽  
The One ◽  
Sensitivity Method

Although the concepts of various types of ejectors have been thoroughly discussed in the literature during the past sixty years, a rigorous sensitivity analysis of the ejector’s performance has never been presented. In the present work a sensitivity analysis method, based on the use of adjoint functions, is introduced and applied to the one-dimensional model of a supersonic ejector. The advantage of the proposed method over all other possible techniques is that a single computer run can provide the response function sensitivities with respect to all input parameters. The usefulness of the sensitivity coefficients in predicting the ejector’s performance and the uncertainty involved, as well as in the determination of manufacturing tolerances, is demonstrated and proven to be a powerful tool in the design.

Application of a Comprehensive Sensitivity Analysis Method on the Safety Assessment of TRU Waste Disposal in JAPAN

2006 ◽  
Vol 985 ◽  
Author(s):  
Takao Ohi ◽  
Hiroyasu Takase ◽  
Manabu Inagaki ◽  
Kiyoshi Oyamada ◽  
Tomoyuki Sone ◽  
...  
Keyword(s):  
Sensitivity Analysis ◽  
Waste Disposal ◽  
Safety Assessment ◽  
Quantitative Information ◽  
Point Of View ◽  
Analysis Method ◽  
Threshold Values ◽  
Efficient Manner ◽  
Sensitivity Analysis Method ◽  
Independent Parameters

AbstractA comprehensive sensitivity analysis method has been developed with the aim of providing quantitative information in an efficient manner. This methodology is composed of the following two components: (1) a statistical method with random sampling of independent parameters, which identifies important parameters and extracts threshold values of parameters and/or combinations yielding a 'successful condition' where maximum dose does not exceed a target value, (2) A nuclide migration model that as far as possible incorporates a comprehensive set of phenomena occurring within the repository. This approach was applied as part of a safety assessment of the geological disposal of TRU waste in Japan (TRU-2). It was shown that the concept of TRU waste disposal is robust from the point of view of safety.

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