Year-end Sale % OFF 
Abstract
High-performance heat transfer fluids significantly affect the efficiency and overall performance of high heat flux systems. A novel nanocomposite containing mesoporous silica with high dispersity decorated with copper nanoparticles with a high thermal conductivity was synthesized. Fourier-transform infrared (FTIR) spectroscopy, transmission electron microscopy (TEM), X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), X-ray photoelectron spectroscopy (XPS) and scanning electron microscopy (SEM) were conducted to characterize the synthesized nanocomposite. The present study investigated the thermal and hydraulic characteristics of hybrid nanofluids developed through dispersing the synthesized nanocomposite (Cu/SBA-15) in water in a helically-grooved tube. Changes in thermo-hydraulic characteristics by a Reynolds number of Re = 5000–12000 and the nanocomposite weight fraction concentration (deionized water, C = 0.012 wt%, 0.017 wt% and 0.023 wt%) were examined. Adding the nanocomposite to the base fluid with C = 0.023 wt% resulted in the maximum increase of 33.45% in heat transfer. The Nusselt number was found proportional to the Reynolds number and the nanocomposite weight fraction concentration. The highest thermal performance factor can be got when Re = 7780 and C = 0.023 wt%. The experimental results were employed to propose an experimental correlation for predicting the thermal performance factor, friction factor, viscosity and the Nusselt number of the hybrid nanofluid.
Published Version
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.
