Energies,
Journal Year:
2024,
Volume and Issue:
17(22), P. 5760 - 5760
Published: Nov. 18, 2024
Thermal
energy
storage
systems
utilising
phase
change
materials
offer
significantly
higher
densities
compared
to
traditional
solutions,
and
are
therefore
attracting
growing
interest
in
both
research
application
fields.
However,
the
further
development
of
this
technology
requires
effective
methods
enhance
thermal
efficiency.
We
propose
a
horizontal
periodic
shell-and-tube
structure
as
an
efficient
latent
heat
unit.
This
aims
analyse
transfer
not
only
between
tube
containing
fluid
material
but
also
adjacent
units.
The
results
obtained
for
single
cell
within
with
those
reference
units
insulated
adiabatic
highly
conductive
shells.
enthalpy–porosity
approach,
combined
Boussinesq
approximation,
is
applied
address
challenges
encountered
during
melting
solidification.
proves
be
unit
short
solidification
times.
In
contrast,
non-periodic
case
neglected
conduction
shell
increases
times
by
213.8%
21%,
respectively.
shortest
were
recorded
aspect
ratios
0.44
1,
Civil Engineering Journal,
Journal Year:
2023,
Volume and Issue:
9(11), P. 2868 - 2895
Published: Nov. 1, 2023
This
study
aims
to
develop
an
interdisciplinary
approach
solving
innovative
thrust
vector
control
problems.
The
methodology
involves
the
development
of
a
working
hypothesis
about
ejection
process
when
using
controlled
nozzle
deflect
(velocity
vector)
in
any
direction
within
complete
geometric
sphere.
When
developing
hypothesis,
multilateral
analysis
individual
facts
and
scientific
technical
information
is
performed
tools
"big
data"
area,
assessing
opportunities
apply
"Foresight"
for
predicting
fluidics.
authors
propose
new
mathematical
models
describe
distribution
mass
flow
rate
fluid
medium
between
channels.
Patents
inventions
support
novelty
results
that
reveal
more
active
fluidics
as
applied
simple
complex
jet
systems
with
low
extremely
high
energy
density
flows.
proposed
rests
on
modern
computer
base
logical
continuation
well-known
Euler’s
works.
simulation
multiflow
devices
mainly
focuses
power
engineering,
production,
processing
hydrocarbons.
Some
this
research
work,
including
patented
design
developments
calculation
methods,
also
robotics,
unmanned
vehicles,
programable
systems.
attribute
further
inventive
problems
use
different
AI
options.
Doi:
10.28991/CEJ-2023-09-11-017
Full
Text:
PDF
Inorganics,
Journal Year:
2024,
Volume and Issue:
12(12), P. 313 - 313
Published: Dec. 3, 2024
Hydrogen
storage
technologies
are
key
enablers
for
the
development
of
low-emission,
sustainable
energy
supply
chains,
primarily
due
to
versatility
hydrogen
as
a
clean
carrier.
can
be
utilized
in
both
stationary
and
mobile
power
applications,
low-environmental-impact
source
various
industrial
sectors,
provided
it
is
produced
from
renewable
resources.
However,
efficient
remains
significant
technical
challenge.
Conventional
methods,
such
compressed
liquefied
hydrogen,
suffer
losses
limited
gravimetric
volumetric
densities,
highlighting
need
innovative
solutions.
One
promising
approach
metal
hydrides,
which
offers
advantages
high
capacities
flexibility
temperature
pressure
conditions
required
uptake
release,
depending
on
chosen
material.
these
systems
necessitate
careful
management
heat
generated
absorbed
during
absorption
desorption
processes.
Thermal
(TES)
provide
means
enhance
efficiency
cost-effectiveness
hydride-based
by
effectively
coupling
thermal
with
This
review
introduces
hydride
materials
storage,
focusing
their
thermophysical,
thermodynamic,
kinetic
properties.
Additionally,
explores
TES
materials,
including
sensible,
latent,
thermochemical
options,
emphasis
those
that
operate
at
temperatures
compatible
widely
studied
systems.
A
detailed
analysis
notable
hydride–TES
coupled
literature
provided.
Finally,
assesses
potential
future
developments
field,
offering
guidance
researchers
engineers
advancing
Case Studies in Thermal Engineering,
Journal Year:
2023,
Volume and Issue:
49, P. 103383 - 103383
Published: Aug. 14, 2023
Phase
change
material
(PCM)-based
thermal
energy
storage
systems
provide
a
large
capacity
to
store
energy;
however,
PCMs
are
impaired
by
relatively
low
conductivity.
Presently,
the
use
of
copper
foam
annular
fins
was
numerically
investigated
in
PCM-based
unit.
Six
fin
cases
were
studied:
three
with
10
and
20
fins.
The
included
configurations
solid
two
porous
including
40
PPI
porosities
90.91%
97.20%.
Simulations
completed
ANSYS-Fluent
examine
effects
on
charging
discharging
cycles
vertical
shell-tube
unit
Rubitherm
RT-55
PCM.
compared
based
required
time
completely
melt
solidify
PCM,
along
response
system.
Charging
times
for
solid,
porous,
97.20%
11.89,
19.92,
23.33
h.
same
discharged
system
11.39,
19.50,
27.28
Equal
charged
10.00,
22.78,
28.08
h,
9.08,
18.14,
26.22
Increased
convection
from
porosity
cannot
overcome
reduction
effective
