“…The influence of a fourwire structure on the flow and heat transfer process in supercritical water-cooled reactor fuel assembly was verified (Zhao et al, 2022). The thermal and hydraulic characteristics of Al 2 O 3 nanofluid as a coolant in SCWR were studied using a porous media approach (Salehi et al, 2020). Due to improvements in the operating parameters of supercritical water-cooled reactors, the rapid changes in the physical properties of the coolant, and the special design of related structures, the engineering application of this new technology brings challenges in design, thermal hydraulics, and materials.…”