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.
Case Studies in Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
61, P. 104936 - 104936
Published: Aug. 8, 2024
The
objective
of
this
paper
is
to
explore
the
transient
behaviors
fiber
reinforced
composites
with
two
embedded
collinear
cracks
subject
a
sudden
thermal
shock.
orthotropic
both
vertically
oriented
and
horizontally
aligned
fibers
are
examined
present
systematic
comparison.
By
means
integral
transform
methodology
singular
equations,
elastic
governing
equations
solved
numerically
determine
process
stress
intensifications
around
crack
tips.
Parametric
investigations
carried
out
for
volume
fractions
distances.
findings
would
be
beneficial
more
thorough
knowledge
fibrous
composites'
fracture
characteristics
under
shocks,
which
helps
material
design
structural
optimization
reinforcements.
Scientific Reports,
Journal Year:
2024,
Volume and Issue:
14(1)
Published: Nov. 3, 2024
With
buildings
representing
a
substantial
portion
of
global
energy
consumption,
exploring
alternatives
to
traditional
fossil
fuel-based
heating
and
cooling
systems
is
critical.
Thermoelectricity
offers
promising
solution
by
converting
temperature
differentials
into
electrical
voltage
or
vice
versa,
enabling
efficient
indoor
thermal
regulation.
This
paper
presents
comprehensive
investigation
the
integration
thermoelectric
wall
for
sustainable
building
climate
control
through
numerical
simulations
experimental
analyses.
Numerical
using
computational
fluid
dynamics
(CFD)
techniques
were
conducted
model
flow
heat
transfer
within
under
various
operating
conditions.
These
provided
insights
system's
behavior,
which
validated
setups
designed
measure
differentials,
airflow
rates,
power
consumption.
The
results
showed
that
consumption
directly
correlated
with
current,
ranging
from
0.19
W
77.4
as
current
increased
0.1
A
2
A.
Additionally,
absorbed
system
significantly
706–1044%,
depending
on
air
velocity.
released
hot
side
modules
also
rose
substantially,
9850
5285%
increasing
275
51%
higher
velocities.
Moreover,
velocity
led
6.78–9.37%
reduction
in
currents
between
coefficient
performance
(COP)
analysis
revealed
optimizing
both
essential
maximizing
efficiency.
While
fan
reduces
COP
at
velocities,
neglecting
improvements
6.5
×
10⁻⁴
49.0%.
findings
highlight
potential
enhance
comfort
efficiency
buildings.
EUREKA Physics and Engineering,
Journal Year:
2024,
Volume and Issue:
5, P. 15 - 23
Published: Sept. 10, 2024
The
presence
of
bamboo
fiber
has
been
distributed
to
improve
the
structural
integrity
construction.
It
used
resist
impact
loads
and
reduce
crack
widths
in
composite
materials.
This
can
be
utilized
for
reinforcement
construction,
particularly
mortar
elements.
Bamboo
By
combining
good
treatment
with
alkaline
NaOH,
quality
as
a
mix
will
increase
capacity
absorb
energy
greater.
In
this
study
there
were
2
stages,
first
stage
was
look
at
effect
effective
length
molarity.
using
is
lignin
hemicellulose
substances
which
bond
mixture.
optimal
value
Pull-out
test,
involved
manipulating
molarity
NaOH
fiber,
determined
2.5
cm
embedded
or
total
5
when
4
molar
utilized.
All
bamboo-composite
bars
had
cross
section
average
1×1
mm.
And
second
tested
Charpy
load
resistance
optimum
while
varying
objective
test
determine
quantity
incorporated
into
subjected
loads.
standard
specimen
55×10×10
mm
dimension.
Experimental
data
show
that
affected
strength
mortar.
A
proportional
relationship
observed
between
addition
an
compressive
strength;
research
findings
indicate
lowest
modulus
toughness
0.329
MPa,
equivalent
15.583
employing
3.25
%
12
International Journal of Low-Carbon Technologies,
Journal Year:
2024,
Volume and Issue:
19, P. 2162 - 2173
Published: Jan. 1, 2024
Abstract
Building
renovations
in
climates
characterized
by
a
hot
summer
and
cold
winter
(HSWC)
pose
significant
challenges
managing
carbon
emissions
due
to
increased
energy
demands
material
use.
Despite
advances
sustainable
design,
the
footprint
of
renovation
activities
remains
critical
concern,
particularly
regarding
balance
between
initial
from
construction
long-term
operational
efficiency.
This
study
addresses
these
pressing
issues
through
analyzing
associated
with
building
complex
an
HSWC
zone
China.
The
research
examines
both
stage,
where
production
transportation
contribute
significantly
emissions,
consumption
equipment
degradation
influence
output.
By
evaluating
effectiveness
strategies
integrating
building-integrated
photovoltaic
systems,
this
demonstrates
reduction
annual
1176.28
tCO2
1007.25
tCO2,
approximately
14.4%.
findings
showed
that
process
would
achieve
payback
period
7.46
years
24.9%–37.8%
emission
intensity.
work
underscores
potential
environmental
benefits
innovative
materials
efficient
offering
valuable
insights
for
future
low-carbon
projects.
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.
