This
paper
investigates
the
effect
of
polyvinylidene
fluoride,
carbon
nano
tube
(PVDF-CNT)
hybrid
coating
on
heat
transfer
and
hydraulic
performance
serpentine
microchannel
sink.In
aluminum
sink
with
deionized
water
working
fluid,
flow
resistance
were
analyzed
for
different
mass
flux
G
corresponding
to
PVDF-CNT
coated
(PSMC)
uncoated
(TSMC)
at
densities.The
results
show
that
improves
channel.
Compared
TSMC,
convective
coefficient
PSMC
was
improved
by
up
61.9%
reduced
33.8%.
There
is
a
critical
interval
inlet
G,
beyond
which
efficiency
improvement
over
TSMC
more
significant.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
61, С. 104946 - 104946
Опубликована: Авг. 15, 2024
This
paper
examines
the
impact
of
a
polyvinylidene
fluoride
(PVDF)
and
carbon
nanotube
(CNT)
hybrid
coating
on
heat
transfer
hydraulic
performance
serpentine
microchannel
sinks.
In
an
aluminum
sink
using
deionized
water
as
working
fluid,
flow
resistance
were
analyzed
for
different
mass
fluxes
(G)
in
both
PVDF-CNT
coated
(PSMC)
uncoated
(TSMC)
sinks
under
densities.
The
results
demonstrate
that
enhances
channel.
Compared
to
TSMC,
convective
coefficient
PSMC
increased
by
up
61.9%,
while
decreased
33.8%.
offers
superior
balance
pressure
drop
compared
addition
fins.
A
critical
interval
inlet
flux
G
was
identified,
beyond
which
efficiency
improvement
over
TSMC
more
pronounced.
International Journal of Numerical Methods for Heat & Fluid Flow,
Год журнала:
2024,
Номер
34(12), С. 4462 - 4519
Опубликована: Ноя. 5, 2024
Purpose
This
research
focuses
on
the
controlling
irreversibilities
in
a
radiative,
chemically
reactive
electromagnetohydrodynamics
(EMHD)
flow
of
nanofluid
toward
stagnation
point.
Key
considerations
include
presence
Ohmic
dissipation,
linear
thermal
radiation,
second-order
chemical
reaction
with
multiple
slips.
With
these
factors,
this
study
aims
to
provide
insights
for
practical
applications
where
management
and
energy
efficiency
are
paramount.
Design/methodology/approach
Lie
group
transformation
is
used
revert
leading
partial
differential
equations
into
nonlinear
ODE
form.
Hence,
solutions
attained
analytically
through
method-Padé
numerically
using
Runge–Kutta–Fehlberg
method
shooting
procedure,
ensure
precise
reliable
determination
solution.
dual
approach
highlights
robustness
versatility
methods.
Findings
The
system’s
entropy
generation
enhanced
by
incrementing
magnetic
field
parameter
(M),
while
electric
(E)
velocity
slip
parameters
(ξ)
control
its
growth.
Mass
transportation
irreversibility
Bejan
number
(Be)
significantly
increased
rate
(C
r
).
In
addition,
there
boost
heat
3.66%
0.05⩽ξ⩽0.2;
meanwhile
0.2⩽ξ⩽1.1,
mass
gets
12.87%.
Originality/value
paper
presents
novel
analyzing
optimization
EMHD
near
Moreover,
represents
significant
advancement
application
analytical
techniques,
complemented
numerical
approaches
boundary
layer
equations.
This
paper
investigates
the
effect
of
polyvinylidene
fluoride,
carbon
nano
tube
(PVDF-CNT)
hybrid
coating
on
heat
transfer
and
hydraulic
performance
serpentine
microchannel
sink.In
aluminum
sink
with
deionized
water
working
fluid,
flow
resistance
were
analyzed
for
different
mass
flux
G
corresponding
to
PVDF-CNT
coated
(PSMC)
uncoated
(TSMC)
at
densities.The
results
show
that
improves
channel.
Compared
TSMC,
convective
coefficient
PSMC
was
improved
by
up
61.9%
reduced
33.8%.
There
is
a
critical
interval
inlet
G,
beyond
which
efficiency
improvement
over
TSMC
more
significant.
