Abstract
Stabilized nanofluids have been prepared by dispersing dry ZnO nanoparticles in different base fluids including 75:25, 85:15 and 95:5 (by volume) of ethylene glycol (EG) and deionized water (DW) mixtures. Thermal conductivity and viscosity experiments have been conducted at temperatures between 15°C and 55°C with mass fraction of nanoparticle of 5.25%. What’s more, natural convection characteristics of EG/DW based ZnO nanofluids were also investigated. The thermal conductivity of nanofluid with more DW is bigger because the network of direct and tight connection in spatial structures between atoms expedites heat transfer between nanoparticles, and it increases with increasing the temperature as expected. Meanwhile, the viscosity of nanofluid increases with increasing the concentration of EG. When the temperature increases, the intermolecular distance becomes larger, which leads to the decrease of the viscosity. Natural convection experiment shows that the presence of nanoparticles deteriorates the natural convective heat transfer under present condition.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
