Heat Transfer Engineering,
Год журнала:
2024,
Номер
unknown, С. 1 - 18
Опубликована: Ноя. 28, 2024
Limited
thermal
conductivity
of
water
hinders
the
performance
ice
storage
systems.
This
study
proposes
a
novel
approach
to
enhance
using
nature-inspired,
dandelion-shaped
fins
with
multi-level
branches
within
spherical
capsules.
We
aim
optimize
fin
configuration
maximize
cooling
energy
capacity.
Based
on
enthalpy-porosity
method,
solidification
inside
capsules
is
investigated
numerically.
Compared
finless
capsules,
significantly
improve
heat
transfer.
Fins
two
levels
outperform
other
types
that
averagely
34.64%
increment
in
dimensionless
capacity
per
unit
time
achieved
less
than
6%
loss
weight.
Notably,
higher
fractal
dimension
length
further
enhances
fins.
Aluminum
identified
as
optimal
material
due
its
efficiency
and
cost-effectiveness.
Finally,
normalized
equation
proposed
predict
volume
fraction
under
different
temperatures.
Clean Energy Science and Technology,
Год журнала:
2024,
Номер
2(4), С. 237 - 237
Опубликована: Ноя. 26, 2024
Latent
thermal
energy
storage
(LTES)
is
an
important
technology
to
mitigate
the
discrepancy
between
source
and
supply,
it
has
great
application
prospects
in
many
areas,
such
as
solar
utilization,
geothermal
utilization
electricity
storage.
However,
LTES
systems
suffer
from
low
conductivity
of
most
phase-change
materials
(PCMs),
threatening
their
large-scale
commercial
applications.
To
tackle
this
challenge,
heat
transfer
enhancement
for
critically
been
widely
investigated
worldwide.
Convectional
techniques,
including
fins,
nanoparticles
multiple
PCMs,
can
significantly
improve
charging
discharging
rates
system.
Recently,
rotation-based
methods
have
emerged
provide
new
routes
systems,
achievements
obtained
by
researchers
around
world.
This
study
conducted
a
short
review
mechanisms
applications
three
methods,
aiming
deep
insights
into
these
novel
propel
future
development
