Determination of diffusion coefficient of CO۲ gas in nanofluids: modeling study

A three-dimensional model was investigated for the measurement of mass diffusivity of CO۲ in pure water and different nanofluids including silicon oxide, aluminum oxide, and titanium oxide with concentrations of ۰.۰۵, ۰.۱, and ۰.۲ wt%.. Different parameters such as temperature and the weight percentage of nanoparticles on CO۲ diffusivity were investigated in COMSOL software and CO۲ diffusivity was compared with experimental results. The modeling results reported that water was saturated with gas at ۳۶,۰۰۰ seconds, and the highest amount of absorbed gas occurred at ۰.۳۲ m and the results were validated with experimental data.

کلیدواژه ها:

CO۲ diffusivity ، Nanofluid ، DLS analysis ، COMSOL software.