Energies,
Год журнала:
2024,
Номер
17(17), С. 4264 - 4264
Опубликована: Авг. 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.
Results in Engineering,
Год журнала:
2024,
Номер
23, С. 102363 - 102363
Опубликована: Июнь 7, 2024
Combining
hydrogen
with
natural
gas,
a
hydrocarbon
fuel,
is
seen
as
critical
step
towards
reaching
net-zero
emissions
and
creating
cleaner
environment.
To
tackle
climate
change,
major
organizations
like
the
U.S.
Department
of
Energy,
Energy
Innovation,
International
Renewable
Agency
are
promoting
use
blended
gas.
This
approach
can
potentially
cut
in
half
compared
to
relying
solely
on
Using
Ansys
2022
R1
CHEMKIN
tool,
study
analyses
combustion
features
H2-CNG
(compressed
gas)
-air
mixtures,
considering
atmospheric
conditions
operational
parameters.
Blending
50
%
CNG
results
significant
changes,
including
an
increase
laminar
flame
speed
from
48.78
cm/s
71.52
cm/s.
As
content
blend
increases
0
%,
concentration
free
radicals
H,
O,
OH
rises
by
42.86
28.57
20.00
respectively,
these
values
at
pure
CNG.
NSGA-II
multi-objective
optimization
identified
that
hydrogen-blended
surpasses
radical
generation.
The
research
confirms
creates
promising
fuel
several
advantages.
When
combusted,
mixtures
exhibit
superior
characteristics,
increased
efficiency
through
formation
speed.
innovation
has
potential
significantly
reduce
carbon
footprint
contribute
achieving
neutrality
goals.
more
efficient
properties
offer
compelling
pathway
for
mitigating
change.
Energy Conversion and Management X,
Год журнала:
2024,
Номер
22, С. 100568 - 100568
Опубликована: Март 16, 2024
The
penetration
of
liquefied
petroleum
gas
(LPG)
is
much
faster
due
to
its
wide
range
applications,
from
industry
domestic
usage.
Hydrogen-blended
LPG
(H2-LPG)
fuels
offer
benefits
such
as
reduced
emissions
and
increased
fuel
efficiency,
hydrogen
a
promising
option
clean-burning
properties
easy
transportation
through
pipelines.
present
work
investigated
the
combustion
performance
blended
for
commercial
cooking
burners
(CCBs).
SolidWorks
was
used
create
model
CCB,
which
then
analysed
using
non-premixed
approach
with
compressible
k-ε
turbulent
flow
in
Ansys
Fluent.
chemical
kinetic
mechanisms
were
employed
analyse
impact
blends
conditions
on
burner's
efficiency.
study
found
that
blending
up
50%
can
significantly
enhance
performance,
reduce
CO
CO2
emissions,
increase
economic
viability
conservation.
