Energies,
Journal Year:
2024,
Volume and Issue:
17(17), P. 4264 - 4264
Published: Aug. 26, 2024
This
study
introduces
a
novel
hybrid
solar–biomass
cogeneration
power
plant
that
efficiently
produces
heat,
electricity,
carbon
dioxide,
and
hydrogen
using
concentrated
solar
syngas
from
cotton
stalk
biomass.
Detailed
exergy-based
thermodynamic,
economic,
environmental
analyses
demonstrate
the
optimized
system
achieves
an
exergy
efficiency
of
48.67%
exergoeconomic
factor
80.65%
51.5
MW
23.3
8334.4
kg/h
87,156.4
The
explores
four
scenarios
for
green
production
pathways,
including
chemical
looping
reforming
supercritical
water
gasification,
highlighting
significant
improvements
in
levelized
costs
impact
compared
with
other
solar-based
systems.
Systems
2
3
exhibit
superior
performance,
electricity
(LCOE)
49.2
USD/MWh
55.4
(LCOH)
between
10.7
19.5
USD/MWh.
exergoenvironmental
ranges
66.2%
to
73.9%,
rate
5.4–7.1
Pts/MWh.
Despite
high
irreversibility
challenges,
integration
energy
significantly
enhances
system’s
making
it
promising
alternative
as
fossil
fuel
reserves
decline.
To
improve
competitiveness,
addressing
process
cost
reduction
concentrators
receivers
is
crucial.
Hydrogen,
Journal Year:
2025,
Volume and Issue:
6(1), P. 18 - 18
Published: March 19, 2025
The
Indonesian
government
has
established
an
energy
transition
policy
for
decarbonization,
including
the
target
of
utilizing
hydrogen
power
generation
through
a
co-firing
scheme.
Several
studies
indicate
that
in
gas-fired
plants
can
reduce
CO2
emissions
while
improving
efficiency.
This
study
develops
simulation
model
M701F
gas
turbine
at
Cilegon
plant
using
Aspen
HYSYS.
impact
different
volume
fractions
(5–30%)
on
thermal
efficiency
and
is
analyzed
under
varying
operational
loads
(100%,
75%,
50%).
results
show
increase
with
each
5%
increment
fraction,
averaging
0.32%
100%
load,
0.34%
75%
0.37%
50%
load.
hourly
emission
rate
decreased
by
average
2.16%
across
all
load
variations
every
fraction.
Meanwhile,
reduction
intensity
100%,
was
0.017,
0.019,
0.023
kg
CO2/kWh,
respectively.
Processes,
Journal Year:
2024,
Volume and Issue:
12(12), P. 2728 - 2728
Published: Dec. 2, 2024
The
current
global
energy
crisis
is
driving
the
need
to
search
for
alternative
raw
materials
and
fuels
that
will
be
able
ensure
continuity
of
strategic
industries,
such
as
steel
industry.
A
chance
reduce
consumption
traditional
(e.g.,
natural
gas)
utilise
potential
gases
from
thermal
conversion
waste,
and,
in
particular,
pyrolysis
gas.
Unfortunately,
despite
its
high
calorific
value,
this
gas
not
always
suitable
direct,
energy-related
use.
limitation
type
waste
subjected
pyrolysis,
particularly
plastics,
rubber
textiles.
Due
above,
article
proposes
co-combustion
a
ratio
1:10
with
pusher
reheating
furnace
employed
heat
charge
before
forming.
chemical
composition
flue
generated
during
combustion
alone
various
wastes
was
modelled,
namely,
two
types
refuse-derived
fuel
(RDF)
mixture
pine
chips
polypropylene
alder
polypropylene.
calculations
were
performed
using
Ansys
Chemkin-Pro
software
(ver.
2021
R1).
computer
simulations
showed
addition
most
analysed
variants
did
significantly
affect
gases.
For
biomass
(PP),
higher
concentrations
CO
H2
unburned
hydrocarbons
observed
than
other
mixtures.
reason
differences
explained
by
conducting
formation
path
analysis
sensitivity
selected
products.
