An application of INFRA code system for the performance evaluation of dry process fuel

In order to evaluate the performance of dry process fuel loaded into the pressurized water reactor (PWR), we have modified INFRA, an high burnup fuel performance code system developed independently by Korea Atomic Energy Research Institute (KAERI), with thermal and mechanical performance models of dry process fuel. Hence, the inpile behavior of dry process fuel will be estimated in the PWR with this code system. This paper deals with thermal characteristics of UO2 and dry process fuels by the computational results obtained from the modified INFRA code with various thermal and mechanical models of the dry process fuel. The results will be utilized to provide basic data for the dry process fuel performance and to construct the dry process fuel performance code system with new thermal and mechanical models of dry process fuel for the future nuclear systems such as the generation IV reactor systems