STUDIES IN ENGINEERING AND EXACT SCIENCES,
Год журнала:
2024,
Номер
5(2), С. e11379 - e11379
Опубликована: Дек. 2, 2024
This
study
explores
the
numerical
modeling
of
hydrogen
bubble
dynamics
in
electrolytic
processes,
utilizing
COMSOL
Multiphysics
software.
The
focus
is
on
development
precise
computational
models
to
simulate
processes
formation,
growth,
and
movement
water
electrolysis
systems,
which
are
crucial
for
optimizing
production.
Using
2D
axisymmetric
modeling,
research
applies
several
interface-capturing
techniques,
including
phase
field,
level
set,
moving
mesh
methods,
accurately
capture
behavior
bubbles
various
operational
conditions.
By
analyzing
these
dynamics,
aims
improve
understanding
bubble-related
phenomena
electrolysis,
such
as
formation
patterns,
size,
terminal
velocities
rising
bubbles.
Additionally,
effects
density
differences
between
examined
assess
their
impact
overall
efficiency
electrolysis.
results
indicate
that
method
offers
best
performance
providing
insights
can
contribute
optimization
efficient
Energy Reviews,
Год журнала:
2024,
Номер
3(3), С. 100073 - 100073
Опубликована: Фев. 9, 2024
The
Proton
Exchange
Membrane
(PEM)
water
electrolyzer
is
considered
promising
energy
storing
means
for
harnessing
variable
renewable
sources
to
produce
hydrogen.
Understanding
the
internal
fluid
dynamics,
which
are
often
challenging
directly
observe
experimentally,
has
prompted
use
of
numerical
models
investigate
two-phase
flow
within
PEM
electrolyzers.
In
this
study,
we
provide
a
comprehensive
review
prior
research
focusing
on
modeling
electrolyzers,
encompassing
both
components
at
mesoscopic
scales
and
full
macroscopic
level.
We
delve
into
specifics
various
approaches
different
summarize
discuss
current
state
art
in
field.
Presently,
predominantly
employ
homogeneous
assumption.
However,
microscopic
capable
tracking
phase
interfaces
limited
components.
Challenges
persist
integrating
model,
particularly
coupling
between
channels
porous
media.
Future
efforts
may
focus
developing
multi-scale
simulating
under
fluctuating
input
conditions.
Additionally,
given
structural
similarities
electrolyzers
fuel
cells,
compare
differences
two
technologies.
This
work
shall
offer
insights
researchers
field
