Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
This
study
focuses
on
investigating
a
PCM
based
TES
unit,
which
plays
crucial
role
in
temporarily
storing
thermal
energy
to
mitigate
the
mismatch
between
supply
and
demand.
Visual
inspection
confirmed
addition
of
rGO,
with
significant
increase
conductivity
(∼62%)
PW.
The
examined
effects
rGO
concentration
(0.25-1.00
vol%)
HTF
flow
rate
TC
TDC
TES.
Higher
reduced
both
time
due
enhanced
heat
transfer.
Increasing
from
0.375
1.5
L/min
decreased
overall
charging
time,
improved
efficiency
(∼24).
results
show
direct
correlation
TC,
TDC,
efficiency,
process
parameters
(rGO
rate),
experimental
predicted
values
demonstrating
satisfactory
agreement
(±12%,
±12%,
±2%,
respectively).
provides
practical
application
valuable
predictive
tool
for
estimating
known
rates
concentrations
wax-based
PCMs,
suggesting
as
an
effective
additive.
Energy Storage,
Journal Year:
2024,
Volume and Issue:
6(7)
Published: Oct. 1, 2024
ABSTRACT
Phase
change
material
(PCM)‐based
heat
storage
systems
utilize
the
absorption
or
release
of
latent
during
a
phase
to
store
thermal
energy.
Nevertheless,
effectiveness
these
is
restricted
by
shape
and
structure
their
confinement,
as
well
conductivity
material.
This
work
investigates
novel
method
enhance
PCM
concurrently
utilizing
two
techniques:
inclusion
nanoparticles
alteration
system's
geometry.
Introducing
enhances
medium
while
altering
shape,
which
improves
transfer
efficiency
adjusting
surface
area
available
for
exchange.
RT‐35
was
tested
use
in
energy
space
heating
cooling.
With
melting
point
35°C,
chosen
moderate
building
temperatures
storing
releasing
The
results
indicate
that
using
can
greatly
systems.
By
incorporating
Al
2
O
3
nanoparticles,
time
reduced
20%
compared
pure
PCM,
it
more
efficient
than
best
case
modification.
These
findings
including
modifying
are
effective
methods
improve
performance
devices.
technology's
potential
surpasses
this
study's
limits
be
utilized
diverse
applications,
solar
storage,
district
cooling,
industrial
process
heat.
International Materials Reviews,
Journal Year:
2024,
Volume and Issue:
69(7-8), P. 380 - 446
Published: Dec. 1, 2024
Organic
phase
change
materials
(O-PCMs)
such
as
alkanes,
fatty
acids,
and
polyols
have
recently
attracted
enormous
attention
for
thermal
energy
storage
(TES)
due
to
availability
in
a
wide
range
of
temperatures
high
latent
heat
values.
However,
low
conductivity
leakage
problems
during
the
transition
O-PCMs
are
great
concern.
To
overcome
long-standing
drawbacks
O-PCMs,
we
critically
discussed
preparation
techniques
macro
encapsulation
(MaPCM),
microencapsulation
(MPCM),
shape
stabilized
(SSPCM),
eutectic
(EPCM),
nano-enhanced
(NePCM)
along
with
morphological
insights,
property
enhancements
&
molecular
dynamics
(MD)
simulation
prepared
composite
PCMs.
The
article
also
discusses
fundamental
increments
phonon
interaction,
Van
der
Waals
forces
attraction,
aspect
ratio,
conductive
path,
temperature
agglomeration,
surfactant
effect,
resistance
O-PCMs.
current
ongoing
review
manuscript
consolidates
variation
properties
different
concentrations
nanoparticles,
considering
variety
references
provide
valuable
insight
researchers.
Carbon-based
nanoparticles
dispersed
best
way
reduce
problem.
π-π
stack
interaction
between
decreased
stabilization.
authors
observed
that
highest
increment
OPCMs
is
1008.33%
60%,
respectively.
Finally,
present
provides
new
vision
draws
more
material
reliability
O-PCMs-based
applications
future,
particularly
regarding
TES.
Proceedings of the Institution of Mechanical Engineers Part A Journal of Power and Energy,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Dec. 21, 2024
This
study
focuses
on
investigating
a
PCM
based
TES
unit,
which
plays
crucial
role
in
temporarily
storing
thermal
energy
to
mitigate
the
mismatch
between
supply
and
demand.
Visual
inspection
confirmed
addition
of
rGO,
with
significant
increase
conductivity
(∼62%)
PW.
The
examined
effects
rGO
concentration
(0.25-1.00
vol%)
HTF
flow
rate
TC
TDC
TES.
Higher
reduced
both
time
due
enhanced
heat
transfer.
Increasing
from
0.375
1.5
L/min
decreased
overall
charging
time,
improved
efficiency
(∼24).
results
show
direct
correlation
TC,
TDC,
efficiency,
process
parameters
(rGO
rate),
experimental
predicted
values
demonstrating
satisfactory
agreement
(±12%,
±12%,
±2%,
respectively).
provides
practical
application
valuable
predictive
tool
for
estimating
known
rates
concentrations
wax-based
PCMs,
suggesting
as
an
effective
additive.
