A Model for the Transient Release of Fission Products from UO2Fuel: Gasout Code Description

Autor: Walter P. Dovigo, Lorne D. Macdonald, Mukesh Tayal, Erl Kohn
Rok vydání: 1989
Předmět:
Zdroj: Nuclear Technology. 85:300-313
ISSN: 1943-7471
0029-5450
DOI: 10.13182/nt89-a34252
Popis: The GASOUT computer code calculates fission gas release, activity release, and fission product swelling in a Canada deuterium uranium (CANDU) fuel element during transient (nonequilibrium) conditions such as load following, postulated accidents involving high temperatures, and temporary postdryout operation of fuel. The phenomena modeled in the code described in this paper include production of isotypes; diffusion; grain growth, both equiaxed and columnar; sweeping by grain boundaries; growth of grain-boundary bubbles; interlinkage of bubbles; grain-face separation; release by melting; radioactive decay; and effect of precursors.
Databáze: OpenAIRE