ICONE23-1571 Study on heat transfer characteristics of natural circulation of different fluids in narrow rectangular channel

Abstract

By the method of numerical simulation and the geometric modeling based on existing experiment table, the heat transfer characteristics of water, sodium and lead-bismuth in a 2mm vertical rectangular channel were studied. The effect of different boundary conditions on the thermal characteristics was also studied. The effect of inlet velocity and heat flux density on the heat transfer coefficient and the pressure drop of different fluids in the rectangular channel were studied. It provides a reference for selection of working fluid in the narrow rectangular channel.