Development of a New Method for Synthesizing HITEC Salt-Based Alumina Nanofluids

This study presents a new two-step method to synthesize molten salt-based nanofluids by replacing water with butanol and using an Emax high-energy mill ensure good stability homogeneity. Commercial HITEC salt was selected as the base fluid, alumina nanoparticles (nominal size of 5,1 nm) were used additive in three different proportions: 0,5, 1,0, 1,5 wt.%. The specific heat capacity evaluated through two methods: differential scanning calorimetry (DSC) modulated (MDSC). According evaluation MDSC, increment up 4,27% achieved 1,0 wt.% comparison raw salt, without affecting melting point thermal salt. behavior may be related distribution However, no significant improvement nanofluid observed when standard DSC applied. due sensitivities methods small changes sample, MDSC being more sensitive technique, it establishes contribution phases that make nanofluid: fluid solid nanoparticles. Similarly, heating rate each techniques can influence sensitivity regard determining nanofluids.