EconPapers    
Economics at your fingertips  
 

FRACTAL MODEL OF FISSION PRODUCT RELEASE IN NUCLEAR FUEL

Gediminas Stankunas ()
Additional contact information
Gediminas Stankunas: Lithuanian Energy Institute, Laboratory of Nuclear Installation Safety, Breslaujos g. 3, Kaunas LT-44403, Lithuania

International Journal of Modern Physics C (IJMPC), 2012, vol. 23, issue 09, 1-8

Abstract: A model of fission gas migration in nuclear fuel pellet is proposed. Diffusion process of fission gas in granular structure of nuclear fuel with presence of inter-granular bubbles in the fuel matrix is simulated by fractional diffusion model. The Grunwald–Letnikov derivative parameter characterizes the influence of porous fuel matrix on the diffusion process of fission gas. A finite-difference method for solving fractional diffusion equations is considered. Numerical solution of diffusion equation shows correlation of fission gas release and Grunwald–Letnikov derivative parameter. Calculated profile of fission gas concentration distribution is similar to that obtained in the experimental studies. Diffusion of fission gas is modeled for real RBMK-1500 fuel operation conditions. A functional dependence of Grunwald–Letnikov derivative parameter with fuel burn-up is established.

Keywords: Nuclear fuel; fission products; anomalous diffusion; fractals; 28.41.Bm; 66.30.Jt (search for similar items in EconPapers)
Date: 2012
References: View complete reference list from CitEc
Citations:

Downloads: (external link)
http://www.worldscientific.com/doi/abs/10.1142/S012918311250057X
Access to full text is restricted to subscribers

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:wsi:ijmpcx:v:23:y:2012:i:09:n:s012918311250057x

Ordering information: This journal article can be ordered from

DOI: 10.1142/S012918311250057X

Access Statistics for this article

International Journal of Modern Physics C (IJMPC) is currently edited by H. J. Herrmann

More articles in International Journal of Modern Physics C (IJMPC) from World Scientific Publishing Co. Pte. Ltd.
Bibliographic data for series maintained by Tai Tone Lim ().

 
Page updated 2025-03-20
Handle: RePEc:wsi:ijmpcx:v:23:y:2012:i:09:n:s012918311250057x