World TRIGA users conference, 3

Abstract

The heat generated by nuclear fission is transferred from fuel elements to the cooling system through the fuel-to-cladding gap and the cladding to coolant interfaces. The fuel thermal conductivity and the heat transfer coefficient from the cladding to the coolant were evaluated experimentally. Results of this study indicated that subcooled boiling occurs at the cladding surface in the central channels of the reactor core at power levels approximately 60kW.