Abstract

In the present work, the effects of the SiO2, TiO2 and Al2O3 nanoparticles and temperature on the density and viscosity of choline chloride/ethylene glycol deep eutectic solvent based nanofluids were investigated. The choline chloride/ethylene glycol deep eutectic solvents with 1:2, 1:3 and 1:4 M ratio were used as the base fluid, and the nanofluids with different concentrations of nanoparticles were synthesized. All the nanofluids demonstrated Newtonian behavior. The density and viscosity of the nanofluids were measured from 303.15 K to 353.15 K and at atmospheric pressure. The experimental density and viscosity data were correlated using the model proposed by Sharifpur and Masoumi, respectively. In addition, the density and viscosity enhancement rate of different nanofluids were compared and discussed.

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