Dispersion stability and rheological characteristics of water and ethylene glycol based zinc oxide nanofluids

With advancement of nanoscience, "nanofluids" are becoming quite popular among thermal engineers. High conductivity, relatively less settling speed, and higher surface area nanoparticles a few key promoting properties. The last two decades have seen dramatic progress towards using in industrial applications. However, the stability rheological characteristics prepared nanofluids serious effects on their transport characteristics, but unfortunately, this has not found proper attention from researchers. In study, ZnO within deionized water, ethylene glycol, blends been extensively tested. Stability was observed UV-vis spectroscopy, while viscosity measured with help rheometer. data collected 0.011-0.044 wt.% loading nanoparticles, experiments were conducted 15-55?C temperature range. Better recorded when pure glycol. Experiments showed that increased particle loading, whereas effect surfactants appeared to be insignificant. Research results used assess predictions different models. Experimental overpredicted by Einstein, Brinkman, Batchelor?s