Investigation on Heat Transfer Properties of Graphene Nanoplatelets Blended Distilled Water-Ethylene Glycol Mixtures in Battery thermal management system

In this investigation, the performance of graphene nanoplatelets (GNP) during heat transmission has been examined. Compared to other nanoparticles, carbon nanostructures exhibit higher thermal conductivity due to their low density and integrated thermal conductivity. The experimental findings are relevant in that compared with the base fluid, nanofluid samples had heat transfer capability. The physicochemical characteristics of investigated GNP were characterized using X-ray diffraction analysis (XRD), a scanning electron microscope (SEM), and UV–Vis spectrophotometry. The thermal conductivity and physical properties in the base fluid of Distilled water- ethylene glycol (70:30) and 100 % vol. of glycol with 120 minutes of sonication time, based on graphene nanofluids were measured. Nanofluid concentrations of 0.025, 0.05, 0.075, and 0.1 wt% were obtained for graphene nanoplatelets in a specific surface area of 500 m2/g. After investigating dispersion properties, the stability of nanofluid was examined using a zeta potential and UV-visible spectrophotometer. According to the thermal conductivity facts, dispersed nanoparticles can always improve the heat conductivity of the DW-EG (70:30) base fluid, with the greatest improvement occurring at a concentration of 0.1 weight per cent GNPs. This form of nanofluids has better potential for heat transfer fluids in medium-temperature applications, including heat exchanger systems and battery thermal management systems (BTMS).