Buildings,
Journal Year:
2024,
Volume and Issue:
14(12), P. 4082 - 4082
Published: Dec. 23, 2024
This
study
evaluates
the
impact
of
building
orientation,
typology,
and
envelope
characteristics
on
energy
efficiency
CO2
emissions
in
urban
dwellings
subtropical
climate,
with
a
focus
Cartagena,
Colombia.
North-facing
consistently
demonstrate
superior
performance,
achieving
an
average
increase
4.27
±
1.77%
compared
to
south-facing
counterparts.
trend
is
less
pronounced
near
equator
due
sun’s
high
zenith
angle.
Semi-detached
homes
exhibit
23.17
9.83%
greater
than
corner
houses,
attributed
reduced
exterior
wall
exposure,
which
lowers
demand
by
2.16
0.74
kg
CO2/m2
annually.
Significant
disparities
are
observed
across
socioeconomic
strata;
strata
3
4
show
lowest
(6.69
1.42
per
year),
while
5
6
have
highest
(10.48
differences
construction
quality
glazing
ratios.
Roofing
materials
also
play
key
role,
thermoacoustic
(TAC)
roofs
reducing
up
5.80%
lower
asbestos–cement
roofs.
Furthermore,
sandwich
panels
substantial
potential,
reductions
51.6%
1
2
median
minimum
saving
9.4%
6.
These
findings
underscore
importance
integrating
performance
criteria
into
public
housing
policies,
promoting
practices
that
enhance
sustainability
reduce
greenhouse
gas
improving
occupant
comfort
property
value.
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102769 - 102769
Published: Aug. 31, 2024
Due
to
global
climate
change
and
energy
market
turmoil,
the
world
is
seriously
pushing
switch
renewable
diversifying
sources.
The
building
sector
consumes
an
amount
of
energy,
accounting
for
approximately
40
%
energy.
Therefore,
concept
zero-energy
buildings
has
become
more
realistic
than
before.
This
study
reveals
latest
developments
in
through
a
comprehensive
literature
review
past
ten
years.
Emphasis
been
placed
on
buildings'
heating,
ventilation,
cooling
systems,
as
they
constitute
most
important
part
demand.
Also,
role
negative
resulting
from
improved
envelope
design
compatible
with
surrounding
environment,
thermal
insulation
materials,
phase
vegetation
cover,
etc.
A
was
also
made
significant
technologies,
which
include
solar
installations,
wind
turbines,
geothermal
heat
exchangers.
showed
that
three
main
axes
must
be
achieved
reach
energy-free
building:
Reducing
waste
energy-conserving
improving
HVAC
systems.
Raising
efficiency
performance
facilities
by
using
hybrid
systems
ability
flexibility
respond
changing
These
are
integrated
approach
achieving
ZEBs;
none
can
neglected.
provides
references
researchers,
institutions,
decision-makers
unify
efforts
achieve
ZEBs.
It
aims
attract
attention
focus
research
raising
questions
identifying
gaps
future
address.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: Feb. 6, 2025
Abstract
Nowadays
glass
curtain
walls
are
used
widely
in
modern
buildings
as
they
offer
a
significant
aesthetic
appearance
and
provide
the
building
with
natural
lighting.
However,
their
poor
thermal
resistance
leads
to
excessive
usage
of
mechanical
systems
achieve
comfort
which
turn
increases
energy
consumption
buildings.
The
proper
integration
unique
properties
PCM
could
effectively
enhance
performance
therefore,
main
objective
this
research
is
examine
validate
effect
using
phase
change
material
(PCM)
on
especially
when
integrated
double
glazing
unit
(DGU).
examined
comprehensively
DGU
by
undergoing
field
experiment
comparing
results
simulation
model
Design
Builder
(DB)
-energy
plus
tool.
After
validating
model,
DB
was
multi-story
office
three
different
climatic
regions
Egypt
covering
humid,
mild,
hot
arid
regions.
showed
that
petroleum
jelly
DGUs
will
lead
reducing
cooling
spaces
8.91%,
8.62%,
8.07%
Cairo,
Alexandria,
Aswan
consecutively
from
total
yearly
electric
consumption.
International Journal of Low-Carbon Technologies,
Journal Year:
2025,
Volume and Issue:
20, P. 1057 - 1079
Published: Jan. 1, 2025
Abstract
This
study
examines
carbon-reduction
retrofit
strategies
for
aging
university
buildings,
using
Nanjing
Audit
University’s
Mochou
campus
as
a
case
study.
The
incorporated
high-performance
insulation,
optimized
window-to-wall
ratios,
low-emissivity
glass,
and
green
concrete,
achieving
40%
reduction
in
energy
consumption.
Energy
simulations,
monitoring,
occupant
comfort
assessments
confirmed
improved
thermal
performance
sustainability.
Findings
provide
insights
into
material
selection
lifecycle
cost
energy-efficient
retrofits.
research
highlights
the
economic
environmental
benefits
of
building
envelope
upgrades,
supporting
initiatives,
sustainable
development.
Scientific Reports,
Journal Year:
2025,
Volume and Issue:
15(1)
Published: March 25, 2025
As
the
proportion
of
building
energy
consumption
gradually
increases,
adding
insulation
materials
to
existing
envelope
has
become
an
important
method
improve
thermal
performance.
Currently,
most
research
on
optimum
thickness
layers
is
calculated
from
perspective
heat
transfer.
However,
in
humid
and
hot
areas,
influence
humidity
solar
radiation
should
not
be
ignored.
Therefore,
this
study
used
coupled
moisture
transfer
model
calculate
yearly
cooling
heating
transmission
loads.
Three
kinds
materials:
expanded
polystyrene,
polyurethane
extruded
polystyrene
were
compared
ranging
10
90
mm.
The
P1-P2
economic
consisting
lifecycle
P1
expenditure
ratio
P2
was
thickness,
payback
periods
savings.
results
show
that,
thicknesses
for
polyurethane,
are
66.8
74.5
mm,
38.3
40.2
46.3
49.5
respectively.
required
5.57
5.72
years,
6.86
7.47
6.32
6.74
Expanded
economical
because
its
lowest
total
cost,
shortest
period
This
helpful
obtaining
more
accurate
layer
guiding
renovation
buildings.
