Laminar Forced Convection and Entropy Generation of ZnO-Ethylene Glycol Nanofluid Flow through Square Microchannel with using Two-Phase Eulerian-Eulerian Model

In this paper, convective heat transfer and entropy generation of ZnO-EG nanofluid flow through a square microchannel are numerically investigated. Flow is modelled by using Eulerian-Eulerian two phase flow model. Nanoparticle volume fraction of ZnO-EG nanofluid ranged between %۱.۰ and %۴.۰. As a result, it is found that the convective heat transfer coefficient of flow increased from ۹۷۱۸.۱۵ W/m۲K to ۲۳۰۱۰.۷۹ W/m۲K when ۴.۰% ZnO nanoparticle addition to pure EG at Re=۱۰۰. Total entropy generation of ZnO-EG nanofluid decreases with increase in nanoparticle volume fraction of ZnO-EG nanofluid. It is also observed that the Bejan number decreases with increase in nanoparticle volume fraction of ZnO-EG nanofluid.

کلیدواژه ها:

Entropy generation ، Eulerian ، Ethylene Glycol ، Microchannel ، phase ، Nanofluid ، Two