The Role of Nanoparticle Doping in Heat Transfer Fluids

Abstract

Improving the thermal conductivity of heat transfer fluids (HTFs) is critical for the performance of energy storage systems, particularly in concentrated solar power (CSP) plants. Nanoparticle doping has emerged as an effective method to enhance the thermal properties of HTFs. This short communication reviews recent progress in the use of nanoparticles such as Al₂O₃, TiO₂, and carbon-based nanomaterials to improve HTF efficiency. The findings indicate that even at low concentrations, nanoparticles can significantly boost the thermal conductivity of base fluids, optimizing energy storage and transfer in solar thermal applications.