Processes,
Год журнала:
2024,
Номер
12(12), С. 2711 - 2711
Опубликована: Дек. 1, 2024
Hydrogen,
as
one
of
the
most
promising
renewable
clean
energy
sources,
holds
significant
strategic
importance
and
vast
application
potential.
However,
a
high-energy
combustible
gas,
hydrogen
poses
risks
fire
explosion
in
event
leakage.
Hydrogen
production
plants
typically
feature
large
spatial
volumes
complex
obstacles,
which
can
significantly
influence
diffusion
pathways
localized
accumulation
during
short-term,
high-volume
release,
further
increasing
risk
accidents.
Implementing
effective
leakage
monitoring
measures
mitigate
these
risks,
ensuring
safety
personnel
environment
to
greatest
extent
possible.
Therefore,
this
paper
uses
CFD
methods
simulate
process
plant.
The
study
examines
molar
fraction
distribution
characteristics
presence
obstacles
by
varying
ventilation
speed
plant
directions
main
conclusions
are
follows:
enhancing
effectively
prevent
rapid
increase
concentration,
with
higher
speeds
yielding
better
suppression.
After
leak
confined
space,
tends
diffuse
along
walls
accumulate
corner
areas,
indicating
that
equipment
should
be
placed
locations.
Sustainability,
Год журнала:
2025,
Номер
17(3), С. 1129 - 1129
Опубликована: Янв. 30, 2025
The
fuel
cell
electric
vehicle
(FCEV)
is
a
promising
transportation
technology
for
resolving
the
air
pollution
and
climate
change
issues
in
United
States.
However,
large-scale
penetration
of
FCEVs
would
require
sustained
supply
hydrogen
which
does
not
exist
now.
Water
electrolysis
can
produce
reliably
sustainably
if
electricity
grid
clean,
but
impacts
on
are
unknown.
In
this
paper,
we
develop
comprehensive
framework
to
model
FCEV-driving
-refueling
behaviors,
water
process,
operation.
We
chose
Western
Electricity
Coordinating
Council
(WECC)
region
case
study.
modeled
existing
WECC
grids
accounted
additional
loads
from
using
Production
Cost
Model
(PCM).
Additionally,
need
five
million
leads
3%
increase
load
WECC.
Our
results
show
that
an
inflexible
hydrogen-producing
process
1.55%
average
cost
electricity,
while
flexible
scenario
only
0.9%
increase.
On
other
hand,
oversized
electrolyzers
could
take
advantage
cheaper
generation
opportunities,
thus
lowering
total
system
costs.
