Renewable Energy,
Journal Year:
2024,
Volume and Issue:
231, P. 120888 - 120888
Published: June 28, 2024
The
design
of
thermal
energy
storage
(TES)
tank
is
the
key
part
that
can
limit
charging
and
discharging
process.
Most
research
findings
highlight
use
fins
augments
heat
transfer
rate.
This
work
experimentally
investigates
aligned
copper
wools
as
fillers
to
enhance
performance
a
lab-scale
shell-and-tube
TES
filled
with
phase
change
material
(PCM).
Two
different
fibre
thicknesses
were
chosen
discretely
laid
around
tubes
in
two
patterns.
Accordingly,
five
configurations
obtained,
including
reference,
for
evaluation.
was
loaded
n-octadecane
PCM
all
cases
studied.
results
showed
up
16
%
reduction
melting
time
inclusion
wool.
significantly
increased
mean
power
during
(53
%)
(205
%).
addition
metal
wool
into
enables
release
at
constant
temperature
entire
transition
And
overall
efficiency
found
get
improved.
Therefore,
integrated
would
be
beneficial
systems.
Case Studies in Thermal Engineering,
Journal Year:
2023,
Volume and Issue:
48, P. 103157 - 103157
Published: June 8, 2023
One
important
solution
for
societies
to
overcome
the
energy
crisis
is
manage
production
and
storage
of
energy.
In
this
regard,
latent
heat
systems
have
recently
gained
a
remarkable
attention.
Hence,
work
devoted
enhance
performance
tube-shell
system
by
using
novel
spiral
fins
with
different
geometrical
characteristics.
Different
number
vanes
been
employed
on
constant
twisting
pitch.
The
cases
studied
include
single-fin,
double-fin,
triple-fin
quadruple-fin.
These
augment
transfer
from
low
temperature
fluid
PCM
inside
shell
container
during
solidification
process.
To
model
phase
change,
enthalpy-porosity
technique
has
adopted.
Various
parameters
used
assess
functionality
including
Nusselt
number,
total
time,
temperature,
solid
fraction
evolution,
contours,
contours
etc.
results
demonstrated
that
double-fin
took
advantage
in
augmentation
discharging
process
while
case
single-fin
showed
worst
performance.
indicated
fin
not
only
influencing
factor
length
also
dominant
role.
Engineering Applications of Computational Fluid Mechanics,
Journal Year:
2023,
Volume and Issue:
17(1)
Published: June 28, 2023
To
overcome
the
weak
thermal
conduction
of
phase
change
materials
(PCM),
This
investigation
aims
to
study
effect
circular
Y-shaped
fins
added
a
two-pipe
latent
heat-saving
unit
compared
with
conventional
fins.
The
system
is
placed
in
straight-up
orientation,
and
PCM
located
annulus,
whereas
hot
water
moved
inside
internal
tube
charge
material
(PCM)
point
35°C.
Different
independent
geometric
factors
involving
length
stem
angle
tributaries
horizontal
line
number
are
analysed.
impact
working
fluid's
Reynolds
temperature
(as
input
parameters)
evaluated
as
sensitivity
analysis
control
output
(melting
time
rate).
results
show
that
increasing
height
reducing
angles
higher
performance
system.
For
optimal
case,
fluid
from
500
2000
31%
reductions
melting
time.
Moreover,
raising
45°
55°
reduces
by
∼44%.
Case Studies in Thermal Engineering,
Journal Year:
2023,
Volume and Issue:
43, P. 102804 - 102804
Published: Feb. 7, 2023
This
work
concerns
the
melting
performance
enhancement
in
a
finned
shell
and
tube
thermal
energy
storage
device
containing
salt
based
phase
change
materials.
Two
materials
of
pure
nitrate
composite
that
made
salt,
vermiculite
graphite
were
employed
comparatively
investigated.
A
two-dimensional
mathematical
model
was
established
to
predict
heat
transfer
occurred
salts
by
considering
combined
impacts
natural
convection
conduction.
set
simulation
data
from
literature
used
verify
modelling
code
for
an
experiment
built
validate
numerical
composite.
The
effects
fin
amount,
arrangement,
length
thickness
as
well
operating
condition
on
behaviour
detailedly
evaluated.
results
indicated
benefit
employment
fins
accelerating
rate.
use
with
enhanced
led
more
remarkable
improvement
process,
adjustment
ingredients
composition
achieved
further
intensification.
For
given
amounts
over
0–8
same
neighbour
angle,
process
is
respectively
shortened
around
79%
56%
compared
indicating
utilization
better
choice
than
device.
