%K Alumina Nanoparticle; Different proportions; Enhanced heat transfer; Ethanol water mixtures; Ethanol-water binary mixtures; Nanofluids; Nanoparticle concentrations; Settling characteristics, Alumina; Binary mixtures; Design; Ethanol; Heat transfer; Nanoparticles; Sedimentation; Settling tanks; Sonication, Nanofluidics %X Nanofluids are considered as promising heat transfer fluids due to enhanced heat transfer ability as compared to the base fluid alone. Knowledge of settling characteristics of nanofluids has great importance towards stability of nanosuspensions. Sedimentation behavior of Alumina nanoparticles due to gravity has been investigated using different proportions of ethanol-water binary mixtures. Nanoparticles of 40 nm and 50 nm are used in this investigation at 23°C. Sediment height with respect to time is measured by visualization method in batch sedimentation. The effect of sonication on the sedimentation behavior is also studied using ultrasonic agitator. The effect of particle diameter, nanoparticle concentration and ethanol-water proportion on sedimentation behavior of nanofluids has been investigated and discussed. © (2013) Trans Tech Publications, Switzerland. %L scholars3417 %P 143-148 %A S.U. Ilyas %A R. Pendyala %A N. Marneni %J Applied Mechanics and Materials %R 10.4028/www.scientific.net/AMM.372.143 %C Kuala Lumpur %D 2013 %O cited By 33; Conference of 2013 2nd International Conference on Advanced Materials Design and Mechanics, ICAMDM 2013 ; Conference Date: 17 May 2013 Through 18 May 2013; Conference Code:100296 %V 372 %T Settling characteristics of alumina nanoparticles in ethanol-water mixtures