Optimisation of CANFLEX-SCWR bundle through subchannel analysis

A subchannel code ATHAS has been developed to analyze the behavior of CANFLEX®1 bundle. The code includes a relatively large number of correlations for heat transfer, hydraulics resistance, mixing calculations as options and hence is applicable for detailed sensitivity analyses. CANFLEX bundle is appropriate for use in the CANDU®²-SCWR with radial power uniform distribution. The PCST is much lower than the design limit of cladding surface …