Experimental determination of thermophysical properties and figures-of-merit analysis of 80:20% water and ionic liquid mixture based MXene nanofluid

Abstract

Novel material of MXene was synthesized and prepared their ionanofluids while dispersing them into 20:80% (by mass) of ionic liquid of 1,3-Dimethylimidazolium dimethyl phosphate [MMIM][DMP] and water mixture. The thermophysical properties were studied experimentally at different particle weight loadings from 0.2% to 1.0% and at different temperatures over 20°C to 60°C. By utilizing the evaluated thermophysical properties of ionanofluids their figures-of-merit were analyzed by using three models under turbulent flow conditions. It is understood from the results, the thermal conductivity of 1.0 wt% of ionanofluid is enhanced about 56.62% at a temperature of 60°C; whereas, the dynamic viscosity is enhanced to 17.66% at 20°C compared to base fluid alone. Moreover the density of ionanofluid is raised and specific heat ionanofluid is lowered with rise of particle weight concentrations. The obtained thermophysical properties were fitted into regression equations based on the multi-linear regression method. The evaluated three models figures-of-merit show all the prepared ionanofluids in the measured weight concentrations and temperatures are beneficial heat transfer fluids because their value is greater than 1.