Comparative Study of Nusselt Number Correlations for Hitec Molten Salt

摘要

Molten salt has been realized as a potential candidate as a clean non-pollutant heat transfer fluid for concentrated solar power plants because of its high heat capacity and broad ranges of operational temperatures. In this study, the Nusselt number of the commercially known Hitec molten salt is numerically assessed, using k-ε model turbulence model with non-equilibrium wall functions, for the ranges of 10⁴-10⁵ Reynolds number and 10⁴-10⁵ W/m² uniform surface heat flux. Moreover, the present work is compared against previously published work with success. The proposed numerical model provides valuable guidelines for the development of heat exchanging systems.