Some Issues in Two-dimensional Modeling of Tritium Transport PDF Download
Are you looking for read ebook online? Search for your book and save it on your Kindle device, PC, phones or tablets. Download Some Issues in Two-dimensional Modeling of Tritium Transport PDF full book. Access full book title Some Issues in Two-dimensional Modeling of Tritium Transport by Shiu W. Tam. Download full books in PDF and EPUB format.
Author: Shiu W. Tam
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Get Book Here
Book Description
Author: Shiu W. Tam
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 21
Get Book Here
Book Description
Among the major processes leading to tritium transport through Li ceramic breeders the percolation of gaseous tritium species through the connected porosity remains the lest amenable to a satisfactory treatment. The combination of diffusion and reaction through the convoluted transport pathways prescribed by the system of pores poses a formidable challenge. The key issue is to make the fundamental connection between the tortuousity of the medium with the transport processes in terms of only basic parameters that are amenable to fundamental understanding and experimental determinations. This fundamental challenges is met within the following approaches. The technique that we have employed is a random network percolation model. Local transport in each individual pore channel is described by a set of convection-diffusion-reaction equations. Long range transport is described by a matrix technique. The heterogeneous structure of the medium is accounted for via Monte Carlo methods. In this way the approach requires as inputs only physical-chemical parameters that are amenable to clear basic understanding and experimental determination. In the sense it provides predictive capability. The approach has been applied to an analysis of the concept of tritium residence time which is associated with the first passage time, a direct output of our analysis. In the next stage of our work the tool that we have developed would be employed to investigate the issues of vary large networks, realistic microstructural information and the effect of varying pressure gradient along the purge channels. We have demonstrated that the approach that has been adopted can be utilized to analyze in a very illuminating way the underlying issues of the concept of residence time. We believe that the present approach is ideally suited to tackle these very important yet difficult issues.
Author: Wyn C. Ross
Publisher:
ISBN:
Category : Groundwater
Languages : en
Pages : 250
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Power resources
Languages : en
Pages : 654
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category :
Languages : en
Pages : 233
Get Book Here
Book Description
The site of a 0.75-kiloton underground nuclear explosion, the Cambric event, was selected for the study of radionuclide transport in the hydrologic environment. Water samples from RNM-2S, a well located 91 m from Cambric, have been analyzed for tritium and other radionuclides since the initiation of pumping. Water from RNM-2S flows to Frenchman Lake via an unlined canal. Flume data indicate canal transmission losses of approximately 2m3/day/meter of canal. To determine if infiltrating canal water might be recirculated by RNM-2S, and therefore provide an additional radionuclide input to water samples collected at RNM-2S, a two-dimensional variably saturated solute transport computer model (SATURN, Huyakorn et al., 1983) was used to simulate the movement of tritium from the canal to the water table. Results indicate that recirculated canal water has not had a significant effect on the breakthrough of tritium at RNM-2S.
Author: Wyn Charles Ross
Publisher:
ISBN:
Category : Groundwater flow
Languages : en
Pages : 162
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Hydrology
Languages : en
Pages : 830
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Controlled fusion
Languages : en
Pages : 160
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 568
Get Book Here
Book Description
Author:
Publisher:
ISBN:
Category : Radioactive waste disposal
Languages : en
Pages : 526
Get Book Here
Book Description
