Sub-channel analysis of CANDU-SCWR and review of heat-transfer correlations

摘要

The paper presents the results of sub-channel analysis of CANDU-SCWR based on a wide review of heat transfer correlations. According to comparison with experiment data at different heat flux, Bishop Correlation is selected in SUBCHAN code to analyze CANDU-SCWR fuel channel. By detailed calculation of 43 fuel rods fuel channel in CANDU-SCWR, the paper gets the conclusion that the mass flux redistribution and reduction of heat-transfer coefficient at supercritical condition caused by the steep change of coolant density will limit the power of fuel channel in CANDU-SCWR.