Measurement of Viscosity of Ethylene Glycol-based Al2O3 Nanofluids by Rotating Viscometer Method (CAT#: STEM-PPA-0021-YJL)

Introduction

Nanofluids, in which nano-sized particles are suspended in liquids, have emerged as a potential candidate for the tailoring and production of heat transfer fluids. When the nanoparticles are properly dispersed, nanofluids can offer numerous benefits besides the anomalously high effective thermal conductivity, such as improved heat transfer and stability, microchannel cooling without clogging, the possibility of miniaturizing systems scalings, or reduction in pumping power, among others. Thus, nanofluids have a wide range of industrial, engineering, and medical applications in fields ranging from transportation, micromechanics, heating, ventilating and air-conditioning systems, biomolecules trapping, or enhanced drug delivery.<br />Viscosity is important characteristic that has high influences on the both flow behavior and heat transfer applications of the nanofluids. Accurate determination of viscosity is required for calculation/estimation of convection heat transfer coefficient, Reynolds and Prandtl numbers, pressure drop and its associated required power for pumping.