Thermal conductivity enhancement of ZnO nanofluid using a one-step physical method
作者： Gyoung-Ja Lee , Chang Kyu Kim , Min Ku Lee , Chang Kyu Rhee , Seokwon Kim
DOI: 10.1016/J.TCA.2012.01.010
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摘要: Abstract In the present work, an ethylene-glycol (EG) based nanofluid containing ZnO nanoparticles was prepared by a one-step physical method known as pulsed-wire evaporation (PWE). The structural properties of were studied X-ray diffraction and high-resolution transmission electron microscopy. thermal conductivity EG-based at higher concentration exhibited temperature-dependency due to clustering aggregation in fluid. Moreover, experimentally measured value than theoretically calculated on Hamilton–Crosser model. From analysis rheological behavior, it found that all nanofluids showed Newtonian behavior. viscosity increment did not show temperature-dependency, its increased with volume fraction fixed temperature.
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