Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Окт. 23, 2024
Abstract
Although
optimizing
the
design
of
thermal
conductive
frameworks
to
promote
collection,
transportation,
and
storage
energy
in
composite
phase
change
materials
(CPCMs)
is
widely
studied,
research
on
oriented
layered
still
exploratory
stage.
Taking
inspiration
from
bidirectional
ice
template
strategy,
a
new
approach
proposed
influence
“oriented
micro‐unit”
conductivity
photothermal
mass
transfer
CPCMs.
Three
aramid
nanofibers
graphene
nanosheets
aerogels
with
different
structures
are
prepared
by
high‐energy
ball
milling
freezing.
The
enthalpy
values
within
range
146–152
J
g
−1
.
Photothermal
conversion
experiments,
hot
plate
solar‐thermal‐electric
experiments
multi‐physics
field
simulation
analysis
jointly
show
that
CPCMs
“back‐to‐back”
radial
structure
behaves
most
outstanding
ability
heat
performance,
an
increase
173.3%,
efficiency
91.9%,
maximum
output
voltage
303.3
mV.
opens
up
ideas
for
where
directional
required.
Energies,
Год журнала:
2024,
Номер
17(16), С. 4039 - 4039
Опубликована: Авг. 14, 2024
A
primary
driving
force
of
today’s
urban
environment
is
the
development
or
enhancement
building
stock
with
a
focus
on
minimizing
its
environmental
footprint,
eliminating
dependence
fossil
fuels,
enforcing
energy
efficiency
and
self-sufficiency,
helping
alleviate
climate
change.
Therefore,
in
present
study,
an
up-to-date
review
regarding
passive
retrofitting
techniques
for
sustainable
design
conducted.
Numerous
solutions
concepts
are
thoroughly
examined
terms
innovation
energy-saving
potential.
The
include
novel
thermal
insulation
materials,
innovative
windows
systems,
high
mass
technologies,
optically
advanced
coatings
appropriate
cooling
abatement,
various
energy-efficient
bioclimatic
designs,
instance,
shading
techniques,
mechanical
ventilation
combination
heat
recovery,
green
roofs
façades.
scope
to
comparatively
investigate
retrofit
as
presented
recent
scientific
literature
mainly
within
last
five
up
ten
years.
passive,
energy-mitigating
savings
primarily
residential
buildings,
but
also
tertiary
well
specific
investment
costs.
Lastly,
extensive
discussion
evaluating
comparative
advantages
disadvantages
envelope
technologies
conducted,
allowing
comprehensive
multilevel
comparison.
Abstract
With
their
low
density
and
high
porosity,
aerogels
are
widely
used
as
supporting
frameworks
for
phase
change
materials
(PCMs).
However,
the
host–guest
solid–liquid
phase‐change
systems
often
encounter
difficulties
in
optimizing
balance
between
mechanical
properties
thermal
energy
storage
performance,
intrinsic
advantages
of
not
being
fully
realized.
Herein,
an
aerogel‐functionalization‐PCM
strategy,
a
completely
converse
route
compared
to
traditional
aerogel‐filling‐PCM
method,
toward
lightweight,
flexible
PCM
robust
management
is
developed.
As
proof
concept,
silica
aerogel
particles
(SAPs)
functional
components
added
polyvinyl
alcohol‐polyethylene
glycol
network
produce
composite
PCMs.
The
addition
SAP
reduces
PCM's
latent
heat
by
25%
but
significantly
decreases
heating
rate
190%
enhances
insulation
147%,
achieving
28
°C
temperature
drop
at
80
°C.
This
work
provides
fresh
perspective
on
design
thermally
PCMs
demonstrates
feasibility
enhancing
protection
under
reduced
conditions.
Advanced Functional Materials,
Год журнала:
2024,
Номер
unknown
Опубликована: Авг. 15, 2024
Abstract
Phase
change
materials
(PCMs)
have
attracted
increasing
attention
due
to
their
efficient
heat
storage
capability
and
small
temperature
fluctuation.
And
encapsulation
has
been
recognized
as
an
effective
method
solve
issues
such
corrosion
leakage.
For
a
long
time,
restricted
by
thermal
expansion,
of
PCMs
remained
in
the
low‐temperature
field
liquid‐state
coating.
In
recent
years,
with
expansion
into
medium
high
development
solid‐state
coating
technology,
methods
that
consider
greatly
improved
cycle
life
encapsulated
make
possible.
Herein,
first,
this
paper
summarizes
rates
common
core
shell
materials,
well
behavior
stress
analysis
within
confined
spaces,
proposing
necessity
issues.
Subsequently,
solution
strategies
for
solving
both
macrocapsules
microcapsules
are
introduced.
On
basis,
advantages
disadvantages
each
strategy
compared,
applications
after
resolving
Finally,
current
issues,
corresponding
solutions,
future
research
directions
put
forward.
Phase-change
materials
(PCMs)
stand
a
pivotal
advancement
in
thermal
energy
storage
and
management
due
to
their
reversible
phase
transitions
store
release
an
abundance
of
heat
energy.
However,
conventional
solid-liquid
PCMs
suffer
from
fluidity
leakage
molten
state,
limiting
applications
at
advanced
levels.
Herein,
novel
Zn
