Performance Enhancement of Plate Heat Exchangers Using MWCNTs-SiO2 Hybrid Nanofluids: A CFD Analysis on Heat Transfer and Pressure Drop Characteristics
Abstract
Heat
exchangers
play
a
vital
role
in
numerous
sectors
like
power
generation
and
automotive
manufacturing.
Enhancing
the
energy
efficiency
of
these
stands
as
significant
hurdle.
Utilizing
nanofluids
emerges
an
optimal
solution
to
augment
heat
transfer
rates,
leveraging
their
superior
thermal
conductivity
while
addressing
economic
constraints
linked
with
traditional
exchanger
technologies.
The
motivation
for
this
study
is
consider
comprehensive
synergistic
features
MWCNTs,
SiO2,
hybrid
MWCNTs–SiO2
EG-based
plate
exchangers.
This
was
achieved
by
simulating
using
CFD
(Fluent
Gambit
softwares)
considering
comparison
two
forms
at
different
mass
concentrations.
Reynolds-Averaged
Navier-Stokes
(RANS)
method
employed
model
turbulent
flows,
nanoparticles
were
compared
both
single-phase
two-phase
states,
properties
derived
from
experimental
studies.
Moreover,
Nusselt
number,
convective
coefficient,
pressure
drop
variations
computed
Reynolds
numbers.
findings
indicated
increase
number
incorporation
nanofluid,
achieving
maximum
enhancement
11.19%
EG
240
concentration
0.86
wt.%.
Noticeably,
remained
negligible
lower
numbers,
exhibiting
marginal
up
0.3%
higher
At
wt.%
480,
introduction
hybrid,
SiO2
nano-additives
resulted
respective
increases
coefficient
21.02%,
10.76%,
2.16%
corresponding
alterations
0.11%,
0.04%,
0.02%.
Research Square (Research Square), Год журнала: 2024, Номер unknown
Опубликована: Авг. 19, 2024
Язык: Английский