Thermophysical properties of ethylene glycol-water mixture containing silver nanoparticles

Abstract

In the present work, we report the thermophysical properties of ethylene glycol and water mixture based silver nanofluids. The thermo physical properties such as thermal conductivity, viscosity, density and specific heat are measured using KD2 Pro thermal properties analyser, capillary viscometer, electronic weighing balance and differential scanning calorimeter respectively. The thermal conductivity increases with the increase in particle concentration and temperature. The maximum enhancement of thermal conductivity observed is approximately ~12% for 0.15 vol% at 50°C. The higher thermal conductivity of the particle, Brownian motion and clustering of the particles could be the possible reason for the improvement in thermal conductivity of the nanofluid which is consistent with the published literature. The viscosity and density increases with increase in particle concentration and decreases with increase in temperature. The specific heat decreases with increase in particle concentration and increases with increase in temperature.