Study on Thermophysical Properties of a Lead–Bismuth-Based Graphene Nanofluid

Incorporating graphene nanoparticles with high thermal conductivity into a lead-based coolant can significantly increase its and specific heat capacity, thereby increasing the core power density of lead–bismuth cooled reactors, reducing amount required, ultimately realizing miniaturized lightweight reactor design. The purpose design is great significance to engineering application stacks in remote areas open seas. In this study, thermophysical properties metal-based nanofluids are analyzed by comparing analyzing prediction models established for conductivity, viscosity, capacity. strengthening mechanism summarized, series suitable calculation formulae lead–bismuth-based proposed. research results show that incorporating improve When nanoparticle suspension relatively stable, viscosity concentration nanoparticles. reaches 20%, capacity nanofluid enhanced approximately 80 respectively, whereas also increased 100%. Therefore, it important appropriately select parameters addition maximize effect on transfer performance core.