Thermal investigation and physiochemical interaction of H2O and C2H6O2 saturated by Al2O3 and γAl2O3 nanomaterials

Abstract

Applications: The interaction of nanoparticles and base solvents of different nature attained much interest of the researchers in the recent time. These use in medication, detection of cancer cells, applied thermal engineering, and electrical and mechanical engineering. Among the broad range of applications, investigation of nanofluid through converging/diverging channel is important which is of much interest in the field of medical sciences.

Purpose and methodology: The core purpose of this study is to introduce a new heat transfer model for two natures of nanofluids with bi host solvents. The model in hand achieved through nanofluid expressions, similarity equations and induction of novel dissipation effects. At later stage, numerical treatment is performed to explore the actual behaviour of nanofluids inside the oblique walls which is very important.

Core findings: From the drawn results, it is found that the motion could be controlled by expanding the channel walls ($\alpha =5^o$) and high Re and in Al₂O₃-H₂O it is optimum. The nanofluids based on Al₂O₃ and C₂H₆O₂ have much ability to transmit heat than the other nanofluids. Moreover, dissipation effects ($Ec=0.1,0.2,0.3,0.4$) played significant role and boosted the temperature while keeping $Re=70,\alpha =5^o$ and $\alpha =-5^o$, respectively. Also, the study is validated and achieved good agreement between existing and the current study.

Keywords: Al2O3 nanoparticles; Energy storage; H2O and ethylene glycol; numerical technique; γAl2O3 nanoparticles.