EFFECT OF SILICA NANOPARTICLES ON WATER EVAPORATION PROCESS
Abstract
This manuscript details an experimental study investigating the surface evaporation characteristics of a nanofluid composed of water and SiO2 nanoparticles with an average diameter of 16 nm. The study evaluated the evaporation rates of nanofluids with varying nanoparticle mass concentrations (0.05 %, 0.1 %, 0.2 %, 0.3 %, 0.4 %, 0.5 %, 1 %, 3%, 5 %) using a STA PT1600 thermal analyser at a temperature of 40°C. Results indicate that SiO2 nanoparticles initially reduce the evaporation rate of water up to a concentration of 0.1 mass %, but this effect reverses, with the evaporation rate increasing at intermediate concentrations (up to 0.5 mass%). At higher nanoparticle concentrations (1 mass % and above), the evaporation rate stabilizes and does not change significantly. These results demonstratethat the evaporation properties of water can be modulated by adjusting the nanoparticle mass concentration up to 1 %.