Molten salt-based nanofluid in a laminar region of a circular tube with
constant wall heat flux was numerically investigated. An Eulerian-
Lagrangian method, discrete phase model, was used to predict the heat
transfer performance of nanofluid, considering the factors of inlet Reynolds
number, the mass concentration of the nanoparticles and nanoparticle
diameter. Validation results were found in a good match with experimental
results obtained from the literature. Numerical results showed that the heat
transfer performance of nanofluid was considerably better than that of pure
molten salt. The local heat transfer coefficient and Nusselt number of
nanofluid are about 30% higher than these of pure molten salt and increase
with an increase of Reynolds number and nanoparticle concentration.
Moreover, the heat transfer performance of nanofluid with the small size of
the nanoparticles (10~100 nm) is improved significantly.
REACTOR POWER MEASUREMENT AND HEAT TRANSFER PERFORMANCE IN THE MOLTEN SALT REACTOR EXPERIMENT.
