Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5760 - 5760
Published: Nov. 18, 2024
Thermal
energy
storage
systems
utilising
phase
change
materials
offer
significantly
higher
densities
compared
to
traditional
solutions,
and
are
therefore
attracting
growing
interest
in
both
research
application
fields.
However,
the
further
development
of
this
technology
requires
effective
methods
enhance
thermal
efficiency.
We
propose
a
horizontal
periodic
shell-and-tube
structure
as
an
efficient
latent
heat
unit.
This
aims
analyse
transfer
not
only
between
tube
containing
fluid
material
but
also
adjacent
units.
The
results
obtained
for
single
cell
within
with
those
reference
units
insulated
adiabatic
highly
conductive
shells.
enthalpy–porosity
approach,
combined
Boussinesq
approximation,
is
applied
address
challenges
encountered
during
melting
solidification.
proves
be
unit
short
solidification
times.
In
contrast,
non-periodic
case
neglected
conduction
shell
increases
times
by
213.8%
21%,
respectively.
shortest
were
recorded
aspect
ratios
0.44
1,
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.
