Energy,
Год журнала:
2023,
Номер
282, С. 128329 - 128329
Опубликована: Июль 13, 2023
Efficient
and
sustainable
ventilation
in
urban
tunnels
is
crucial
for
combating
air
pollution
safeguarding
human
health.
This
study
investigates
the
design
factors
impacting
solar
chimney
performance
to
optimize
efficiency.
Experimental
trials
analyzed
effects
of
blockage
ratio,
height,
radiation
on
temperature
distribution
rate.
The
results
demonstrate
that
increased
height
positively
influence
airflow
velocity
at
outlet,
enhancing
ventilation.
rise
near
absorber
higher
than
closed
glazing
wall.
Temperature
within
follows
a
distinctive
horizontal
two-piecewise
semi-parabolic
decay
pattern,
enabling
accurate
prediction
profiles
along
cavity
depth.
Novel
analytical
models
predict
distribution,
velocity,
rate
system,
aiding
precise
optimization.
Remarkably,
ratio
has
limited
impact
rate,
allowing
disregarding
vehicle
tunnels.
Matching
width
tunnel
ensuring
relatively
high
are
emphasized
optimal
functionality.
holds
substantial
implications
system
environments,
promoting
healthier
more
cities.
International Journal of Thermofluids,
Год журнала:
2022,
Номер
15, С. 100171 - 100171
Опубликована: Июнь 17, 2022
In
recent
years,
attention
has
been
drawn
to
battery
thermal
safety
issues
due
the
importance
of
personal
and
vehicle
service
security.
The
latest
advancements
in
management
(BTM)
are
conducted
face
expected
challenges
ensure
safety.
BTM
technology
enhances
with
a
heat
transfer
intensifying
method,
which
guarantees
operation
performance
based
on
battery's
thermokinetic,
electrochemical,
mechanical
characteristics
at
normal
abnormal
operating
conditions.
Preventing
overheating
providing
an
ideal
working
temperature
for
safe
also
important.
Therefore,
developing
system
that
is
both
reliable
vital
research
goal.
A
comprehensive
review
enhanced
presented
this
article.
present
study
introduces
advances
applications
cyclic
stability
served,
high
energy
density,
electrification
automobiles.
summary
relevant
provided
improve
thermo-safe
design
innovation
cooperative
optimization
meet
needs
green-energy
commercialization.
current
work
discusses
air,
liquid,
nanofluids,
phase
change
material,
pipe,
combinations
these
technics
BTM.
Finally,
describes
prospects
utilizing
different
types
distribute
its
diverse
applications.
shows
proper
(TMS)
required
increase
batteries'
efficiency
lifetime.
However,
each
TMS
differ
from
one
one.
proposed
TMS's
configuration
optimum
must
be
examined
before
real
application.
Case Studies in Thermal Engineering,
Год журнала:
2023,
Номер
42, С. 102741 - 102741
Опубликована: Янв. 18, 2023
In
the
present
study,
cooling
of
a
photovoltaic
(PV)
panel
using
phase
change
material
(PCM)
paraffin
wax
RT-42
attached
to
back
surface
is
experimentally
investigated.
Two
identical
PV
panels
having
maximum
electrical
generated
power
40
W
are
employed
perform
outdoor
experiments:
reference
(PVr)
and
another
integrated
with
PCM
(PV-PCM).
The
current
implementation
conducted
different
thicknesses
(1,
2,
3
cm)
varying
tilt
angle
at
15°,
20°,
25°,
30°.
infrared
thermal
camera
used
record
temperature
distribution
over
front
PVr
PV-PCM
panels.
Results
indicate
that
highest
appeared
upper
portion
panels,
whereas
lower
part
shows
lowest
distribution.
At
15ᴼ,
panel's
top
side
higher
than
bottom
by
17.1%,
15.7%,
13.2%
for
thickness
1,
and,
cm,
respectively.
There
also
enhancement
in
output
15.8%
cm
Relatedly,
elevating
from
15°
30°
improves
efficiency
7.4%.
Finally,
enhances
14.4%
compared
Energy,
Год журнала:
2022,
Номер
254, С. 124357 - 124357
Опубликована: Май 25, 2022
Energy
simulations
of
buildings
complement
or
replace
the
static
calculations
used
so
far
and
provide
detailed
answers
to
questions
such
as:
what
is
energy
demand
for
individual
purposes
in
a
building
how
does
it
change
over
course
day,
month,
year
also
enable
comparison
several
design
variants
selection
optimal
one
terms
consumption.
Therefore,
help
make
decisions
optimise
architectural
installation
solutions,
leading
reduction
electricity,
gas
water
designed
building.
They
indicate
extent
factors
affect
heating,
cooling
electricity.
The
results
analyses
can
be
as
basis
system
decisions,
interesting
feedback
investor.
This
paper
focuses
on
year-round
analysis
three-zone
TRNSYS.
Attention
given
values
heat
transfer
coefficients
through
envelope,
heating
demand,
effect
gains/losses
thermal
comfort.
article
points
out
that
correct
determination
needs
influences
choice
renewable
source
lowest
cost
installation.
International Journal of Thermofluids,
Год журнала:
2022,
Номер
16, С. 100199 - 100199
Опубликована: Авг. 28, 2022
Nowadays
heat
pipes
are
considered
to
be
popular
passive
transfer
technologies
due
their
high
thermal
performance.
The
pipe
is
a
superior
apparatus
in
which
latent
of
vaporization
employed
for
an
extended
distance
under
limited
operating
temperature
difference.
Numerical
simulation
devices
principal
step
before
implementing
real-life
applications
as
many
parameters
can
tested
cost-and
time-effective
behaviors.
present
study
provides
review
the
numerical
simulations
various
different
such
cooling
electronic
components,
heating,
ventilation,
and
air
conditioning
(HVAC),
nuclear
reactors,
solar
energy
systems,
electric
vehicles,
waste
recovery
cryogenic,
etc.
Firstly,
this
work
introduces
background
about
main
components
evacuated
tube,
wick,
working
fluid.
fluid
flow
performance
characteristics
pips
discussed,
considering
optimum
parameters.
Finally,
critical
challenges
recommendations
future
encountering
broad
application
thoroughly
studied.
