Research Square (Research Square),
Год журнала:
2023,
Номер
unknown
Опубликована: Сен. 22, 2023
Abstract
The
current
work
looks
at
a
horizontally
oriented
double-pipe
thermal
energy
storage
system
with
PCM
filled
in
the
annular
gap
and
heat
transfer
fluid
(Water,
MXene,
Al
2
O
3
nanofluid)
flowing
an
inner
tube
from
physical
standpoint.
discharging
properties
of
latent
heat-based
various
intake
temperatures
(290K,
298K,
303K)
have
been
analyzed
while
maintaining
constant
mass
flow
rate
fluid.With
varying
input
temperatures,
numerical
investigation
influence
solidification
on
liquid
fraction
temperature
for
capric
acid
PCM-based
has
made.
Based
data,
TES
1%
v/v.
MXene
nanofluid
290K
inlet
solidify
faster
than
water
nanofluid.
In
system,
was
solidified
by
water,
as
HTF
30–120
minutes,
50–200
90–380
respectively,
290K,
303K.
At
temperature,
90%
303.37K,
42.37%
309.57K,
68.35%
306.27K.
during
90
42.37%,
after
30
60
minutes
290K.
Thus,
nanofluids
fluids
double
are
more
feasible
valuable
traditional
energy-efficient
sustainable
storage.
Industrial Chemistry and Materials,
Год журнала:
2024,
Номер
2(4), С. 571 - 586
Опубликована: Янв. 1, 2024
The
EG
conductive
pathway
enables
CPCM
to
achieve
direct
electrical
heating
for
energy
storage
and
regulate
the
temperature
module
uniformity
through
electric
field
control.
ASME Journal of Heat and Mass Transfer,
Год журнала:
2024,
Номер
146(12)
Опубликована: Июль 20, 2024
Abstract
The
impacts
of
melting
behavior
on
the
thermal
performance
triple
tube
energy
storage
(TT-TES)
and
double
(DT-TES)
systems
employing
cetyl
alcohol
3%
v/v.
MXene
nano-enhanced
PCM
(NEPCM)
are
compared
numerically
evaluated
in
this
work.
For
both
DT-TES
TT-TES
systems,
following
were
investigated
connection
to
time:
system
efficiency,
discharged
energy,
heat
transfer
rate,
exergy
destruction,
entropy
generation
number,
exergetic
fraction,
temperature
contours.
In
addition,
effect
Stefan,
Rayleigh,
Nusselt
numbers
Fourier
for
with
NEPCM.
MXene-based
displayed
6.53%
more
Stefan
number
than
alcohol.
pure
phase
change
material
(PCM)
consumes
0.4%
at
7800
s
Pure
a
had
4.16%
higher
is
7.93%
lower
that
reduces
by
1.95%
over
has
76.99%
optimal
efficiency
5400
time
NEPCM
77.04%
4800
DT-TES.
charging
0.7%
Furthermore,
given
volume
PCM,
occurs
rapidly
system.
Energies,
Год журнала:
2024,
Номер
17(21), С. 5281 - 5281
Опубликована: Окт. 24, 2024
One
of
the
challenges
in
energy
supply
for
isolated
power
systems
is
maintaining
a
steady
balance
between
generated
and
consumed
energy.
The
application
storage
flexible
sources
most
preferable
approach
these
systems.
Small-
medium-sized
nuclear
plants
are
promising,
carbon-free
options
to
However,
have
low
maneuverability.
To
solve
this
problem,
article
discusses
use
thermal
accumulator
using
phase
change
material
(solar
salt)
heat
feedwater.
Tubes
with
longitudinal
fins
used
intensify
transfer
system.
This
paper
presents
method
calculating
along
entire
exchange
surface
such
an
accumulator.
A
series
2D
simulations
were
conducted
study
solidification
process
solar
salt
around
tube
at
various
temperatures
on
inner
wall
surface.
regression
dependences
temperature
thickness
solid
PCM
layer
determined.
Using
presented
obtained
dependencies,
we
determined
time
graphs
fluid
outlet
during
discharge.
Based
results
presented,
it
was
found
that
72.7
tons
(dimensions:
6
×
3.71
2.15
m)
can
replace
high-pressure
heater
№1
low-power
plant
(50
MW)
3450
s.
