SIMULATION OF HEAT TRANSFER AND A NEW NANOFLUID FLOW INSIDE A HORIZONTAL CHANNEL

mohammed saad kamel; Ahmed K. Albdoor; Saad Jabbar Nghaimesh

doi:10.30572/2018/KJE/160337

Authors

mohammed saad kamel Mechanical Techniques Department, Al-Nasiriya Technical Institute, Southern Technical University, Basra, Iraq https://orcid.org/0000-0002-5683-7120
Ahmed K. Albdoor Mechanical Techniques Department, Al-Nasiriya Technical Institute, Southern Technical University, Basra, Iraq
Saad Jabbar Nghaimesh Mechanical Techniques Department, Al-Nasiriya Technical Institute, Southern Technical University, Basra, Iraq

DOI:

https://doi.org/10.30572/2018/KJE/160337

Keywords:

New nanofluid, Heat transfer, Horizontal channel, Ceria nanoparticles, Alumina nanoparticles and Hybrid nanofluid

Abstract

The current investigation aims to simulate the heat transfer of conventional fluid and various types of nanofluids inside a horizontal heated tube exposed to a constant heat flux. This study implemented Ansys Fluent release 2021 R1 with a single-phase model that used nearly spherical nanoparticles with a constant diameter of 20 nm and 50 nm for Alumina (Al2O3) and Ceria (CeO2), respectively. The investigation used a volume concentration of nanoparticles from 0.1% to 2% Vol and a Reynolds number range of 400-2000. The findings indicate that, in all situations for hybrid nanofluid, the Nusselt number increased due to an increase in the Reynolds number and the volume concentration compared to the base fluid (Deionized water DI). The improvement ratio between the hybrid nanofluids and conventional fluid at varying volume concentrations was analyzed. Alumina and Ceria hybrid nanofluid with a 2% volume fraction showed the most increased heat transfer ratio, around 13.12%, compared to DI water. The outcomes of this study might be used to fabricate a new generation of nanofluids

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