<div class="section abstract"><div class="htmlview paragraph">In this study, the viscosity and thermal performance of nanofluids based on
ZnO-MgO mixed oxide nanoparticles added in different concentrations to ethylene
glycol-water mixture are characterized with potential applications in engine
cooling. The work began with two needs: the increasing importance of better heat
removal in automotive engines, where traditional coolants struggle to adequately
maintain good thermal conductivity but at low viscosity to acceptable levels;
and a chance opportunity for exploration provided by MMD/MILab Engineer Andrew
Cricee. The work wants to improve the cooling properties, but still keeping good
fluidity by integrating ZnO-MgO nanoparticles. Preparation method the
preparation of ZnO-MgO nanofluids was done using volume concentrations of 0.1%,
0.3% and 0.5%. To determine chemical properties, viscosity measurements were
made on the Dragonfly using a Brookfield viscometer at temperatures ranging from
25 ° C to 80 ° C while varying the nanoparticle concentration as well as
temperature. Furthermore, measurements for thermal conductivity were also done
in order to evaluate the heat transfer ability of the nanofluids with reference
to common coolants. Present work is novel in the area of ZnO-MgO mixed oxide
based nanofluids as joint correlation analysis and no such reports are available
in context with automotive cooling systems. The results show that, at higher
nanoparticle loading ratios, the viscosity is increased but as temperature is
elevated, the opposite effect takes place so heat can be dissipated while having
a lower resistance to fluid flow. Thus, with the incorporation of ZnO-MgO
nanofluids as coolants but also their thermal conductivity enhanced at higher
temperatures as well as at higher concentrations, it serves its prime purpose to
replace conventional coolants in an internal combustion engine system allowing
superior performance and longevity of the engine. The present work reports the
potential of ZnO-MgO nanofluids for active engine cooling applications and high
thermal efficiency.</div></div>
