Journal of Porous Media,
Год журнала:
2024,
Номер
28(1), С. 75 - 99
Опубликована: Июнь 27, 2024
Recent
interest
in
advanced
nanofluids
led
to
AA7072-AA7075
alloy
nanoparticles'
incorporation
EG-H<sub>2</sub>O
base
fluids.
These
hybrids
offer
enhanced
thermal
conductivity.
Coupled
with
the
Cattaneo-Christov
(C-C)
model,
which
elucidates
transient
behavior,
this
approach
promises
improved
heat
transfer
efficiency,
is
vital
for
diverse
engineering
applications.
include
cooling
systems,
manufacturing
processes,
solar
oil
recovery,
aerospace
technologies,
and
renewable
energy
systems.
This
research
presents
a
semi-analytical
method
investigating
of
hybrid
nanofluid
over
an
inclined
porous
stretched
sheet
under
influence
magnetic
field,
non-linear
radiation,
linear
exponential
source/sink
convective
heating,
slip
conditions.
For
assessing
propagation
time,
model
used.
The
Legendre
wavelet
collocation
technique
(LWCT)
also
used,
employs
operational
matrix
integration
(OMI)
capable
producing
more
accurate
findings
than
other
approaches.
made
up
nanoparticles
AA7072
AA7075,
as
well
ethylene
glycol
water
(50%-50%)
fluid.
enhancement
determined
be
19.46%
when
volume
fraction
increased
from
2%
10%.
It
clear
that
relaxation
parameter
reduces
profile,
whereas
sources
improve
it.
noted
velocity
profile
horizontal
decreases
but
increases
vertical
sheet.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
51, С. 103652 - 103652
Опубликована: Окт. 20, 2023
Newly
developed
fluid
called
phase
change
materials
(PCM)
used
to
accumulate
solar
thermal
energy.
This
paraffin-based
is
mixed
with
hybrid
nanoparticles
composed
of
titanium
dioxide
"TiO2″
and
copper
oxide
"CuO".
Using
this
fluid,
we
hope
improve
the
efficiency
industrial
installations.
A
computational
dynamics
(CFD)
model
was
using
Ansys
Fluent
19,
coupled
a
home
code
implemented
in
C
programming
language
as
"user-defined
function".
Initially,
validated
against
experimental
data,
then
parametric
study
conducted
investigate
impact
pure
paraffin
PCM
nanoparticles-paraffin
PCM,
well
effect
varying
mass
fraction
heat
transfer
flow
rate.
geometric
parameters
such
number
fins
installed
storage
tank
were
also
considered
during
analysis.
On
basis
obtained
results,
it
found
that
incorporation
(PCMs)
within
has
potential
significantly
prolong
operational
duration
systems.
Additionally,
at
1%
concentration
increased
average
temperature
by
8%
decreased
melting
time
13.29%
compared
PCM.
Scientific Reports,
Год журнала:
2023,
Номер
13(1)
Опубликована: Ноя. 4, 2023
The
effects
of
thermal
radiation
and
thermophoretic
particles
deposition
(TPD)
on
the
hybrid
nanofluid
(HNF)
flow
across
a
circling
sphere
have
momentous
roles
in
research
engineering.
Such
as
electrical
devices,
projectiles,
conveyance,
sheet
production,
renewable
energy,
nuclear-powered
plants.
Therefore,
current
study
presents
stagnation
point
HNF
flows
about
an
orbiting
sphere.
is
organized
with
accumulation
aluminum
alloys
(AA70772
AA7075)
nanoparticles
water.
model
equations
are
changed
into
non-dimensional
form
ODEs
through
similarity
variables
then
numerically
solved
parametric
simulation.
It
has
been
perceived
that
significance
rotation
factor
boosts
velocity
curve,
while
motion
drops
increasing
numbers
AA7072
AA7075
nanoparticles.
Furthermore,
addition
AA70775
nano
particulates
water
lessens
temperature
profile.
energy
distribution
rate
case
nanoliquid
enhances
from
3.87
to
13.79%,
whereas
mass
dissemination
4.35
11.24%
concentration
varies
0.01
0.03.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
50, С. 103469 - 103469
Опубликована: Сен. 7, 2023
This
study
attempts
to
improve
the
thermal
characteristics
of
nano-encapsulated
phase
change
materials
(NEPCMs)
for
heating
and
cooling
applications.
The
PCM
particles
are
added
water
performance
by
latent
heat
change.
NEPCM
is
confined
in
a
porous
prism
lid-driven
cavity
with
lower
zigzag
wall.
contains
an
elliptic
heated
cylinder
subjected
magnetic
field.
modeled
using
Galerkin
finite
element
method
solve
governing
equations.
influential
parameters
highlighted,
including
impacts
medium
permeability
(Darcy
number
(Da)
=
10−2
–
10−5),
strength
field
(Hartmann
(Ha)
0–100),
orientation
body
(θ
0°
135°),
speed
lid
(Reynolds
(Re)
1–500).
For
all
studied
cases,
it
was
observed
that
improved
increasing
Re
Da
decreasing
Ha.
Increasing
from
0
500
10−5
enhances
Nu
335%
94.7%,
respectively.
While
raising
Ha
100
inclination
angle
90°
decreases
5.3%
6.7%,
Surface Review and Letters,
Год журнала:
2023,
Номер
31(07)
Опубликована: Ноя. 23, 2023
The
streamline
boundary
layer
Casson
liquid
flow
via
wedge
inspired
by
magnetic
field
effects
is
considered
in
this
study.
governing
laws
of
fluid
are
modified
adding
the
radiative
heat
flux,
viscous
dissipation
and
surface
permeability.
Afterward,
model
transformed
into
simplified
form
using
similarity
variables
then
analyzed
numerical
scheme.
significant
influence
physical
parameters
appeared
due
to
acting
field,
function
Prandtl
number
specially
treated
for
behavior
thermal
transfer
mechanism
plotted
discussed
detail.
Further,
tabulated
results
also
provided
replicate
study
future
validated
with
date
published
open
literature
it
found
that
these
accurate
aligned
existing
results.
Proceedings of the Institution of Mechanical Engineers Part N Journal of Nanomaterials Nanoengineering and Nanosystems,
Год журнала:
2024,
Номер
unknown
Опубликована: Янв. 4, 2024
The
mixed
convection
double-diffusive
MHD
flow
of
boundary
layer
nanofluids
above
vertical
region
is
designed.
This
explained
near
stagnation
point
along
with
heat
generation.
Using
Buongiorno’s
model,
the
properties
Brownian
motion,
thermophoresis,
and
diffusion
regular
cross
type
are
included.
appropriate
similarity
transformations
local
technique,
non-linear
unstable
PDEs
in
governing
model
converted
to
ODEs,
which
were
then
evaluated
numerically
by
Keller-box
method
(KBM)
using
computational
software
MATLAB
2021a.
Graphical
analysis
possessions
parameters
on
layers
profiles
velocity,
solute
concentration,
temperature
nanoparticle
concentration
illustrated.
statistics
reduced
Sherwood
number
Nusselt
for
nanoparticles
cases
assisting
opposing
added
as
well
results.
fastest
rate
transfer
achieved
a
scenario
negligible
thermophoresis
effect.
parameter
buoyancy
double
diffusive
appear
rise
rather
than
decrease
lowered
number,
while
motion
rises.
thickness
generation
have
quite
opposite
When
computed
numerical
findings
compared
earlier
published
work,
it
discovered
be
good
percentage.
need
numerous
industrial
applications
improvements
efficiency
energy
consumption
systems,
such
cooling
heating
transportation,
water
heaters,
nuclear
reactors,
optical
devices,
turbines,
aerodynamics,
electronics,
led
establishment
this
investigation.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
54, С. 103996 - 103996
Опубликована: Янв. 11, 2024
This
paper
attempts
to
maximize
solar
energy
utilization
by
employing
a
latent
heat
thermal
storage
(LHTES)
unit
integrated
with
receiver
of
concentrating
collectors
or
management
for
photovoltaic
panels.
The
study
investigated
an
LHTES
rectangular
shape
and
equipped
T-shaped
fin
subjected
flux.
examined
the
effect
eight
T-fin
positions
under
applied
flux
on
performance
phase
change
material
(PCM).
PCM
melting
process
was
modeled
using
enthalpy-porosity
method
finite
element
approach.
obtained
numerical
results
revealed
that
rate
strongly
depends
position,
superiority
fins
located
at
upper
part
chamber
when
is
used
as
primary
heating
source.
Under
flux,
locating
section
enhanced
PCM,
reaching
10
%
better
than
fin's
middle
bottom
positions,
which
against
cases
reported
fixed
temperature
prefer
fins.
Thus,
these
recommend
in
parts
PCM-based
units
collector
receivers
