New versions of the USNRC fuel performance codes, FRAPCON-3 and FRAPTRAN are available to members of the code users group. FRAPCON-3.5 and FRAPTRAN-1.5 include model improvements to various material property models such as gaseous swelling, primary creep, pellet relocation, cladding models, cladding ballooning, and ID oxidation. Various new capabilities have been added such as increased numbers of time steps, axial nodes, and radial nodes. The ability to model pellet chamfers has been added. The ability to specify variable axial node lengths and specify different enrichment, gadolinia content, and central hole size in each axial node has been added. Finally the capability to model refabrication of a rodlet following irradiation of a full length rod has been added to FRAPCON-3.5. This paper will describe the changes made in the new versions of FRAPCON-3 and FRAPTRAN.
Revised: January 7, 2019 |
Published: November 3, 2014
Citation
Geelhood K.J., and W.G. Luscher. 2014.New Release of Fuel Performance Code, FRAPCON-3.5 and FRAPTRAN-1.5. In Proceedings of 2014 Water Reactor Fuel Performance Meeting/LWR Fuel Performance Meeting (WRFPM 2014), September 14-17, 2014, Sendai, Japan.PNNL-SA-103936.