SAE technical papers on CD-ROM/SAE technical paper series,
Год журнала:
2024,
Номер
1
Опубликована: Дек. 10, 2024
<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
engine
cooling.
The
work
began
two
needs:
increasing
importance
better
heat
removal
automotive
engines,
where
traditional
coolants
struggle
adequately
maintain
good
conductivity
but
at
low
acceptable
levels;
a
chance
opportunity
for
exploration
provided
by
MMD/MILab
Engineer
Andrew
Cricee.
wants
improve
cooling
properties,
still
keeping
fluidity
integrating
nanoparticles.
Preparation
method
preparation
was
done
using
volume
0.1%,
0.3%
0.5%.
To
determine
chemical
measurements
were
made
Dragonfly
Brookfield
viscometer
temperatures
ranging
from
25
°
C
80
while
varying
nanoparticle
concentration
as
well
temperature.
Furthermore,
also
order
evaluate
transfer
ability
reference
common
coolants.
Present
is
novel
area
joint
correlation
analysis
no
such
reports
available
context
systems.
results
show
that,
higher
loading
ratios,
increased
temperature
elevated,
opposite
effect
takes
place
so
can
be
dissipated
having
lower
resistance
fluid
flow.
Thus,
incorporation
their
enhanced
concentrations,
it
serves
its
prime
purpose
replace
conventional
an
internal
combustion
system
allowing
superior
longevity
engine.
present
active
high
efficiency.</div></div>
Eng—Advances in Engineering,
Год журнала:
2025,
Номер
6(5), С. 92 - 92
Опубликована: Апрель 30, 2025
This
work
aims
to
explore
the
magnetohydrodynamic
mixed
convection
boundary
layer
flow
(MHD-MCBLF)
on
a
slanted
extending
cylinder
using
Eyring–Powell
fluid
in
combination
with
Levenberg–Marquardt
algorithm–artificial
neural
networks
(LMA-ANNs).
The
thermal
properties
include
stratification,
which
has
higher
temperature
surface
than
surrounding
fluid.
mathematical
model
incorporates
essential
factors
involving
conventions,
layers,
heat
absorption/generation,
geometry
curvature,
properties,
magnetic
field
intensity,
and
Prandtl
number.
Partial
differential
equations
govern
process
are
transformed
into
coupled
nonlinear
ordinary
proper
changes
of
variables.
Datasets
generated
for
two
cases:
flat
plate
(zero
curving)
(non-zero
curving).
applicability
LMA-ANN
solver
is
presented
by
solving
MHD-MCBLF
problem
regression
analysis,
mean
squared
error
evaluation,
histograms,
gradient
analysis.
It
presents
an
affordable
computational
tool
predicting
multicomponent
reactive
non-reactive
thermofluid
phase
interactions.
study
introduces
application
algorithm-based
artificial
(LMA-ANNs)
solve
complex
flows
fluids
over
inclined
stretching
cylinders.
approach
efficiently
approximates
solutions
equations,
demonstrating
high
accuracy
reduced
effort.
Such
advancements
particularly
beneficial
industries
like
polymer
processing,
biomedical
engineering,
management
systems,
where
modeling
non-Newtonian
behaviors
crucial.
Water,
Год журнала:
2025,
Номер
17(11), С. 1601 - 1601
Опубликована: Май 25, 2025
Microfluidic
techniques
have
emerged
as
promising,
efficient,
cost-effective,
and
environmentally
friendly
desalination
solutions.
By
utilizing
fluid
dynamics
at
the
microscale,
these
offer
precise
control
over
chemical,
biological,
physical
processes,
presenting
advantages
such
reduced
energy
consumption,
miniaturization,
portability,
enhanced
process
control.
A
significant
challenge
in
scaling
microfluidic
for
macro
applications
is
disparity
flow
rates.
Current
devices
operate
microliters
per
minute,
while
practical
require
liters
daily.
Solutions
involve
integrating
multiple
units
on
a
single
chip
developing
stackable
designs.
Innovative
designs,
3D
chips,
shown
promise
enhancing
scalability.
Fouling,
particularly
seawater
environments,
presents
another
major
challenge.
Addressing
fouling
through
advanced
materials,
including
graphene
nanomaterials,
critical
to
improving
efficiency
longevity
of
devices.
Advances
device
fabrication,
photo-patterned
hydrogel
membranes
printing,
increased
complexity
affordability.
Hybrid
fabrication
approaches
could
further
enhance
membrane
quality
efficiency.
Energy
consumption
remains
concern,
necessitating
research
into
more
energy-efficient
designs
integration
with
renewable
sources.
This
paper
explores
various
electrochemical-based
methods,
dialysis/electrodialysis,
capacitive
deionization
(CDI)/electrochemical
(ECDI),
ion
concentration
polarization
(ICP),
electrochemical
(ECD).
Abstract
Nanofluids
(NFs)
have
been
implemented
in
several
areas
to
increase
heat
transfer
efficiency.
Thus,
efficiency
for
energy
can
be
achieved.
In
this
study,
the
effect
of
nanoparticle
(NP)
type,
volume
fraction,
and
Re
number
on
NFs
were
analyzed
numerically,
statistically,
theoretically.
Heat
coefficient,
units,
wall
shear
stress,
friction
factor
selected
as
NFs.
ANSYS
Fluent
software
was
utilized
carry
out
computational
fluid
dynamics
analyses.
The
numerical
calculation
scheme
by
employing
Taguchi
L9
orthogonal
array
with
three
decisive
factors.
NP
assumed
factors
levels.
Signal-to-noise
ratio
analysis
determine
direction
impact
ideal
levels
each
Significance
contribution
rates
calculated
Analysis
Variance.
According
mathematical
responses,
most
effective
NPs
h
τ
w
identified
Gr,
Al
2
O
3
,
Cu,
respectively,
whereas
units
are
found
respectively.
addition,
from
6,000
8,000
causes
an
a
decrease
NTU
f
.
data
achieved
research
may
guide
paper
experimental
ChemEngineering,
Год журнала:
2024,
Номер
8(4), С. 65 - 65
Опубликована: Июнь 26, 2024
This
study
aims
to
investigate
the
thermohydraulic
performance
of
silver
nanofluids
with
different
surface
modifications
(citrate,
lipoic
acid,
and
silica)
in
turbulent
convective
heat
transfer
applications.
Three
were
prepared,
each
modified
citrate,
or
silica
coatings.
The
characterized
for
stability
using
zeta
potential
measurements
evaluated
a
smooth
brass
tube
under
flow
conditions.
experimental
setup
involved
measuring
temperature,
pressure,
rate
assess
coefficients,
pressure
drops,
friction
factors.
results
compared
distilled
water
as
base
fluid
validated
against
theoretical
models.
silica-shelled
nanofluid
(Ag/S)
exhibited
significant
35%
increase
average
coefficient
water,
while
citrate-coated
(Ag/C)
acid-coated
(Ag/L)
showed
slight
decreases
approximately
0.2%
2%,
respectively.
Ag/S
demonstrated
9%
mean
Nusselt
number,
indicating
enhanced
capabilities.
However,
all
experienced
higher
drops
factors
than
fluid,
showing
highest
viscosity
(11.9%).
Surface
significantly
influence
nanofluids.
shows
most
substantial
enhancement
transfer,
making
it
promising
candidate
applications
requiring
efficient
thermal
management.
increased
hydraulic
costs
associated
higher-pressure
must
be
carefully
managed.
Further
research
is
needed
optimize
these
specific
industrial
applications,
considering
long-term
effects
nanoparticle
concentrations
geometries.
SAE technical papers on CD-ROM/SAE technical paper series,
Год журнала:
2024,
Номер
1
Опубликована: Дек. 10, 2024
<div
class="section
abstract"><div
class="htmlview
paragraph">In
this
study,
we
investigate
the
thermal
conductivity
optimization
of
nanodiamond
nanofluids
for
application
in
high-performance
automotive
engines.
Nanodiamond
particles,
known
their
superior
properties
and
stability,
are
dispersed
a
base
fluid
composed
ethylene
glycol
water.
Various
concentrations
nanodiamonds
prepared
to
evaluate
impact
on
viscosity.
The
experimental
setup
includes
precise
measurements
using
transient
hot-wire
method
viscosity
rotational
viscometer
over
temperature
range
25°C
100°C.
results
demonstrate
significant
enhancements
with
acceptable
increases
viscosity,
suggesting
potential
improving
engine
cooling
efficiency.
study
concludes
recommendations
future
research
explore
long-term
stability
performance
these
real-world
applications.</div></div>
