Application of the Monte Carlo Method in the Performance Assessment of a Hypothetical HLW Repository in Salt

1988 ◽  
Vol 127 ◽  
Author(s):  
Alexander Nies
Keyword(s):  
Monte Carlo ◽  
Safety Assessment ◽  
Salt Dome ◽  
High Level Waste ◽  
Parameter Uncertainties ◽  
Output Uncertainty ◽  
The Monte Carlo Method ◽  
Waste Repository ◽  
High Level ◽  
Hlw Repository

ABSTRACTRecent advances in complementing the capabilities of our safety assessment code development allow for an explicit investigation of the consequences of parameter uncertainties by Monte Carlo simulation of the disposal system. The implemented methods aire described and applied to impact assessment of a brine intrusion scenario on a high level waste repository in a salt dome. Results display the strong effect of parameter uncertainties on the analysis results. With help of several sensitivity estimators input parameters are ranked according to their influence on output uncertainty.

Numerical and Experimental Investigations on the Time Dependent Behaviour of a Salt Dome With a High-Level Waste Repository

1983 ◽  
Vol 26 ◽  
Author(s):  
Jan Prij ◽  
Leo H. Vons
Keyword(s):  
Elevated Temperatures ◽  
Salt Dome ◽  
Time Dependent ◽  
High Level Waste ◽  
Experimental Investigations ◽  
Time Dependent Behaviour ◽  
High Level ◽  
Hlw Repository ◽  
Dependent Behaviour

ABSTRACTResults are presented of in-situ measurements, performed in a 300 m deep dry-drilled borehole, in the ASSEmine. Convergence measurements at ambient as well as elevated temperatures and pressure measurements at elevated temperatures are discussed. Creep equations derived from these experiments are used for the numerical analysis of the time dependent behaviour of a salt dome with a HLW repository. The analyses show that the total stresses in the salt remain compressive with deviatoric components smaller than 3 MPa.

scholarly journals Safety assessment methodology for a German high-level waste repository in clay formations

2017 ◽  
Vol 9 (5) ◽  
pp. 856-876 ◽  
Author(s):  
M. Jobmann ◽  
A. Bebiolka ◽  
V. Burlaka ◽  
P. Herold ◽  
S. Jahn ◽  
...  
Keyword(s):  
Safety Assessment ◽  
High Level Waste ◽  
Assessment Methodology ◽  
Waste Repository ◽  
High Level

Effects of Aging on the Solubility of Palladium

1995 ◽  
Vol 412 ◽  
Author(s):  
C. Oda ◽  
H. Yoshikawa ◽  
M. Yui
Keyword(s):  
Aqueous Solution ◽  
Aging Time ◽  
Room Temperature ◽  
High Level Waste ◽  
Anaerobic Conditions ◽  
Dilute Aqueous Solution ◽  
Waste Repository ◽  
Ph Range ◽  
Effects Of Aging ◽  
High Level

AbstractPalladium solubility was measured in a dilute aqueous solution at room temperature in the pH range from 3 to 13 under anaerobic conditions. Crystalline Pd metal was clearly visible and the concentration of palladium in solution decreased gradually with aging time. The palladium concentrations in solution were less than 9.4×10-10M in the pH range from 4 to 10 and increased to 10-7M in the pH range greater than 10. This study suggests that palladium concentrations in certain high-level waste repository environments may be limited by Pd metal and may be less than 10-9M.

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