Preliminary Study on SCWR Fuel Rod Performance Analysis Code

A SCWR fuel rod performance analysis code is developed in this paper,based on a PWR fuel rod performance analysis code,by analyzing its model and calculation method.The new code is developed on the basis of intensive analyses of SCWR characteristics,focused on the coolant-fuel rod outside surface heat transfer and cladding properties model.Lastly,the performance analysis code was successfully tested on fuel rod of 1/8 HPLWR fuel assembly,then the paper compares the results with that from the sub-channel analysis code ATHAS,which shows that the error is small.