Energies,
Год журнала:
2023,
Номер
16(19), С. 6915 - 6915
Опубликована: Сен. 30, 2023
Solar
energy
is
a
sustainable
source
that
can
be
effectively
utilized
to
address
winter
heating
challenges
in
buildings.
To
ensure
the
efficient
application
of
solar
for
purposes
and
maintain
reliable
performance
system,
integration
phase-change
materials
(PCMs)
thermal
storage
(TES)
systems
has
emerged
as
crucial
auxiliary
approach.
This
study
focuses
on
design
simulation
four
TES
structures:
smooth,
finned,
metallic
foam,
foam-finned
tubes.
It
explores
their
characteristics,
such
complete
melting
time
heat
flux,
under
various
flow
conditions.
Additionally,
residential
building
Xi’an
selected
object,
where
proposed
system
employed
meet
demand.
Economic
indicators,
including
initial
investment
payback
period,
are
estimated
using
static
evaluation
method.
The
results
highlight
unit
with
tube
4800
s,
which
88.3%
less
than
smooth
tube.
Finally,
based
actual
project,
it
determined
an
HTF
rate
0.25
m/s,
requires
fewest
devices
(914)
period
13
months.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
60, С. 104668 - 104668
Опубликована: Июнь 7, 2024
A
2D
numerical
analysis
was
conducted
to
examine
the
melting
performance
of
a
shell-and-tube-type
phase
change
material
with
two-layer
copper
foam
having
higher
and
lower
porosity
levels.
The
design
parameters
for
these
two
layers
metal
consisted
three
different
volume
fill
ratios
(VFR)
(30
%/70
%,
50
%/50
70
%/30
%)
shapes
(circular,
semi-circular,
elliptical)
layer.
results
showed
that
semicircular-shaped
low
layer
30
%
VFR
had
least
time
475
s.
When
increased
elliptical
circular
394
However,
at
only
shape
323
Furthermore,
were
compared
uniform
system,
deduced
system
did
not
always
have
because
it
depended
on
porosities
filled
in
layers.
Additionally,
an
average
foam,
optimal
combination
observed
performance.
Buildings,
Год журнала:
2023,
Номер
13(11), С. 2712 - 2712
Опубликована: Окт. 27, 2023
Biogas
heating
plays
a
crucial
role
in
the
transition
to
clean
energy
and
mitigation
of
agricultural
pollution.
To
address
issue
low
biogas
production
during
winter,
implementation
multi-energy
complementary
system
has
become
essential
for
ensuring
stability.
guarantee
economy,
stability,
energy-saving
operation
system,
this
study
proposes
coupling
solar
with
phase-change
energy-storage
system.
The
mathematical
model
was
developed,
taking
an
office
building
Xilin
Hot,
Inner
Mongolia
(43.96000°
N,
116.03000°
E)
as
case
study.
Additionally,
Sparrow
Search
Algorithm
(SSA)
employed
determine
equipment
selection
optimize
dynamic
strategy,
considering
minimum
cost
balance
between
supply
demand
load.
operating
economy
evaluated
using
metrics
such
payback
period,
load
ratio,
daily
rate
return.
results
demonstrate
that
balanced
demand,
yields
significant
economic
benefits
compared
central
period
4.15
years
return
32.97%
under
most
unfavorable
working
conditions.
Moreover,
development
optimization
strategy
holds
practical
engineering
significance,
optimal
scheduling
is
realized.
Energies,
Год журнала:
2023,
Номер
16(24), С. 8041 - 8041
Опубликована: Дек. 13, 2023
Industrial
parks,
characterized
by
the
clustering
of
multiple
factories
and
interconnected
energy
sources,
require
optimized
operational
strategies
for
their
Integrated
Energy
Systems
(IES).
These
not
only
aim
to
conserve
industrial
users
but
also
relieve
burden
on
power
supply,
reducing
carbon
emissions.
In
this
context,
paper
introduces
an
optimization
strategy
tailored
clustered
factories,
considering
incorporation
trading
supply
chain
integration
throughout
entire
production
process
each
factory.
First,
a
workshop
model
is
established
factory,
accompanied
consumption
that
accounts
strict
sequencing
integration.
Furthermore,
unit
models
are
devised
IES
then
low-carbon
economically
scheduling
outlined
within
park,
aiming
minimize
total
cost,
including
cost
trading.
Finally,
case
studies
conducted
paper-making
park
located
in
Zhejiang
Province.
Various
scenarios
compared
analyzed.
The
numerical
results
underscore
model’s
economic
merits,
it
offers
technical
support
conservation
emission
reduction
fields.
