Sustainability,
Год журнала:
2024,
Номер
16(24), С. 11035 - 11035
Опубликована: Дек. 16, 2024
Phase
change
materials
(PCMs)
play
a
significant
role
in
achieving
sustainable
objectives
for
green
buildings.
Organic
solid–liquid
PCMs
have
excellent
heat
energy
storage
density
and
suitable
working
temperatures,
making
them
focal
point
of
research
attention.
However,
these
face
challenges
such
as
potential
leakage,
low
thermal
conductivity,
limited
fire
resistance,
which
hinder
their
direct
application
the
construction
industry.
Therefore,
mineral-based
are
highly
regarded
due
to
safety
features,
environmental
friendliness,
non-toxicity,
cost-effectiveness
within
building
development.
In
this
work,
multistage
porous
kaolinite-based
geopolymer
encapsulation
material
using
primary
raw
like
kaolinite
mineral,
sodium
silicate
surfactants,
hydrogen
peroxide
was
successfully
synthesized.
The
PEG
is
used
organic
PCM
while
natural
graphite
mineral
serves
transfer
enhancement
agent
fabricate
novel
composite
PCM,
could
be
applied
at
environment
temperature
from
35–60
°C
approximately.
Furthermore,
study
on
properties
conducted
investigate
influencing
factors.
Comprehensive
experimental
reform
will
offer
proficiency
operations
foster
talents’
capacity
comprehensive
design,
holds
immense
significance
understanding
designing
materials.
This
work
great
development
education
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
60, С. 104793 - 104793
Опубликована: Июль 6, 2024
The
increasing
desire
for
comfort
and
healthy
indoor
environment,
as
well
improvements
in
energy
standards
recent
years,
have
stressed
the
need
to
make
an
active
use
of
building
mass
achieve
maximum
saving
This
is
why
application
ventilated
hollow-core
slab
systems
(VHCS)
can
be
considered
one
innovative
approaches.
These
precast
concrete
slabs
with
tubular
voids
directing
ventilation
air
on
its
length.
In
present
study
Solving
this
system
numerically
using
ANSYS
fluent
program
temperature
distribution
flow
3-D
test
model
determine
feasibility
applying
arid
climate
especially
Iraq
by
checking
inlet
velocity
predict
impact
these
operating
parameters
human
savings.
aimed
provide
a
numerical
analysis
conditioned
zone's
VHCS.
investigation
was
carried
out
scale
room
size
(1
m
×
1.2
1
m)
factor
¼.
Four
distinct
scenarios
were
examined:
first
two
cases
occurred
during
no-load
time
night
when
there
no
internal
or
external
loads
examined
effects
changes
temperatures
velocities.
remaining
conducted
occupied
period
heat
gain
630
W/m2
800
based
SHGC
summer
season
Iraq.
As
previously
demonstrated,
setting
m/s
resulted
optimal
main
flow,
irrespective
supply
core.
findings
shown
that
input
affect
remove
efficiency.
addition,
outcomes
also
illustrated
Thermal
Active
VHCS
System,
while
used
combination
strategies,
could
indeed
regulate
space
conditions
cooling
down
building's
ceiling,
thus
eradicating
stored
heat.
All
investigations
found
suitable
conditioning
dry
hot
locations.
are
known
their
ease
use,
simplicity,
high
performance,
comfort,
They
reduce
peak
boost
structural
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.
Sustainability,
Год журнала:
2024,
Номер
16(15), С. 6482 - 6482
Опубликована: Июль 29, 2024
The
building
envelope
serves
as
a
barrier
against
climatic
conditions
and
insulation
to
prevent
energy
waste
within
buildings.
As
global
shortages
become
more
pressing,
the
requirements
for
envelopes
are
becoming
increasingly
stringent.
Among
available
technologies,
phase
change
materials
(PCMs)
stand
out
their
high
latent
thermal
storage
temperature
stabilization
capabilities.
This
paper
reviews
recent
advancements
in
PCM
technology
envelopes,
starting
with
an
overview
of
organic,
inorganic,
eutectic
PCMs,
along
respective
advantages
disadvantages.
explores
various
incorporation
methods
such
shape
stabilization,
macroencapsulation,
micro/nanoencapsulation,
solid–solid
transition
techniques.
integration
PCMs
enhances
inertia,
reduces
fluctuations,
delays
heat
peaks,
presenting
several
multifunctional
benefits.
However,
challenges
fire
hazards,
potential
toxicity,
pollution,
reduced
mechanical
performance,
higher
initial
costs
persist.
In
light
these
challenges,
criteria
applications
introduced.
Additionally,
hybrid
technologies
that
combine
other
novel
including
radiant
regulation
systems,
thermochromic
windows,
passive
radiative
cooling
coatings,
others.
It
is
shown
PCM-integrated
significantly
improve
savings
indoor
comfort.
offer
substantial
modern
green
strategies
have
further
contexts.
Finally,
provides
future
prospects
studies
this
field,
aiming
towards
energy-saving
future.
Advances in Building Energy Research,
Год журнала:
2025,
Номер
unknown, С. 1 - 27
Опубликована: Янв. 15, 2025
PCM
is
a
valuable
construction
material
due
to
its
energy
efficiency,
but
leakage
during
phase
changes
poses
challenges.
This
study
developed
cork
storage
aggregate
(CESA)
by
vacuum
impregnating
with
change
(PCM)
and
coating
it
polymer
silica
fume
address
leakage.
Experiments
confirmed
the
suitability
of
CESA
as
building
material,
demonstrating
compressive
strength.
Thermal
analysis
via
differential
scanning
calorimetry
showed
decrease
in
enthalpy
after
impregnation,
parafol-20Z
displaying
an
88
J/g
compared
193.5
PCM.
Despite
reduced
enthalpy,
aggregates
delayed
temperature
rise
effectively
tests.
paraffin
wax
1.48
times
temperature-increasing
time
lag,
1.78
lag.
These
results
meant
that
potential
for
energy-saving
performance
when
this
technology
applied
buildings.
Laboratory
experiments
under
varying
ambient
temperatures
further
significant
heat
capacity.
findings
highlight
importance
selecting
based
on
external
melting
point
optimal
savings,
reduce
consumption
construction.
International Journal of Building Pathology and Adaptation,
Год журнала:
2025,
Номер
unknown
Опубликована: Фев. 12, 2025
Purpose
This
study
aims
to
design
a
high-performance
building
envelope
system
with
focus
on
evaluating
energy
savings
considering
the
hot
climate.
Design/methodology/approach
A
thermal
storage
approach
based
inorganic
phase
change
material
(PCM)
was
adopted
regulate
both
temperature
and
humidity
conditions
when
added
envelopes.
The
microencapsulation
technology
used
form
new
PCM
microcapsules
by
combining
agent
conduction
accelerating
encapsulate
an
PCM.
relevant
parameters
of
thermophysical
characteristics
synthesized
were
tested
analyzed.
Also,
numerical
validation
done
for
energy-saving
evaluation
in
envelope.
Findings
results
showed
that
have
high
latent
heat
capacities
enhanced
values.
simulation
conducted
Conduction
Finite
Difference
solution
algorithm
(CondFD)
approved
efficiency
proposed
compositions
Research
limitations/implications
Due
applying
composition
addition
instead
replacement
method,
solutions
are
not
suitable
improving
performance
lightweight
construction.
Originality/value
provides
promising
energy-efficient
originality
is
represented
adding
carbon
nanoparticles
as
shell
overcome
low
issue
PCMs.
In
testing
impacts
different
doses
microcapsules.
