Energy Conversion and Management,
Год журнала:
2024,
Номер
308, С. 118404 - 118404
Опубликована: Апрель 10, 2024
Typical
solar
power
tower
(SPT)
systems
employ
molten
salt
as
the
heat
transfer
and
thermal
energy
storage
medium
to
facilitate
stable
output.
However,
these
are
constrained
by
their
limited
operating
temperature,
which
is
insufficient
supply
for
high-temperature
electrolysis.
In
this
paper,
a
small-scale
(2.5
MW)
solar-thermal-assisted
system
with
SPT,
supercritical
CO2
(SCO2)
Brayton
cycle,
solid
oxide
electrolysis/fuel
cells
(SOEC/SOFC)
proposed.
With
via
air,
SOEC
subsystem
can
operate
at
800
℃
reach
high
efficiency
reduce
electric
demand,
replaces
conventional
waste
from
flue
gas
produced
fossil
fuel
combustion.
Such
convert
excess
electricity
into
hydrogen
or
sale
provides
24
h
day.
The
key
factors
determining
performance
investigated,
including
turbine
inlet
parameters,
main
compressor
recompression
fraction
of
SCO2
subsystem,
temperature
current
density
SOEC/SOFC
subsystems.
case
study
shows
that
net
output
13365.4
kWh/d
in
summer
℃,
86.7
%
higher
compared
7157.6
when
600
℃.
To
recoup
investment
costs
20th
year,
must
be
priced
6.5
$/kg.
After
multi-objective
optimization,
optimal
exergy
capital
SPT-SCO2-SOEC
determined
29.6
3.65
M$,
respectively.
For
SOFC
corresponding
figures
56.1
0.23
M$
investment.
This
benefits
generation
production
Renewable and Sustainable Energy Reviews,
Год журнала:
2024,
Номер
202, С. 114725 - 114725
Опубликована: Июль 4, 2024
With
renewable
energy
sources
projected
to
become
the
dominant
source
of
electricity,
hydrogen
has
emerged
as
a
crucial
carrier
mitigate
their
intermittency
issues.
Water
electrolysis
is
most
developed
alternative
generate
green
so
far.
However,
in
past
two
decades
steam
attracted
increasing
interest
and
aims
key
player
portfolio
electrolytic
hydrogen.
In
practice,
follows
distinct
operational
approaches:
Solid
Oxide
Electrolysis
Cell
(SOEC)
Proton
Exchange
Membrane
(PEM)
at
high
temperature.
For
both
technologies,
this
work
analyses
critical
cell
components
outlining
material
characteristics
degradation
The
influence
conditions
on
performance
durability
technologies
thoroughly
reviewed.
analytical
comparison
alternatives
underscores
advantages
drawbacks,
highlighting
niche
applications:
SOECs
thrive
temperature
industries
like
steel
production
nuclear
power
plants
whereas
PEM
suits
lower
applications
such
textile
paper.
Being
less
explored,
ends
up
by
suggesting
research
lines
domain
i)
(membranes,
catalysts
gas
diffusion
layers)
optimize
scale
technology,
ii)
integration
strategies
with
energies
iii)
use
seawater
feedstock
for
production.
Energies,
Год журнала:
2023,
Номер
16(23), С. 7794 - 7794
Опубликована: Ноя. 27, 2023
The
depletion
of
fossil
fuels
in
the
current
world
has
been
a
major
concern
due
to
their
role
as
primary
source
energy
for
many
countries.
As
non-renewable
sources
continue
deplete,
there
is
need
more
research
and
initiatives
reduce
reliance
on
these
explore
better
alternatives,
such
renewable
energy.
Hydrogen
one
most
intriguing
producing
power
from
fuel
cells
heat
engines
without
releasing
carbon
dioxide
or
other
pollutants.
production
hydrogen
via
electrolysis
water
using
sources,
solar
energy,
possible
uses
solid
oxide
(SOECs).
SOECs
can
be
classified
either
oxygen-ion
conducting
proton-conducting,
depending
electrolyte
materials
used.
This
article
aims
highlight
broad
important
aspects
hybrid
SOEC-based
hydrogen-generating
technology,
which
utilizes
mixed-ion
conductor
capable
transporting
both
oxygen
ions
protons
simultaneously.
In
addition
providing
useful
information
technological
efficiency
SOEC,
this
review
make
efficient
than
any
system.
