Heliyon,
Год журнала:
2024,
Номер
10(16), С. e35171 - e35171
Опубликована: Авг. 1, 2024
In
this
research,
aligned
with
global
policies
aimed
at
reducing
CO2
emissions
from
traditional
power
plants,
we
developed
a
holistic
energy
system
utilizing
solar,
wind,
and
ocean
thermal
sources,
tailored
to
regions
optimal
for
conversion
(OTEC).
The
selected
site,
characterized
by
favorable
wind
solar
conditions
close
areas
high
OTEC
potential,
is
designed
meet
the
electricity
needs
of
coastal
community.
system's
core
components
include
an
Organic
Rankine
Cycle,
turbines,
thermoelectric
elements,
pumps,
heat
exchanger,
turbine,
collector.
A
detailed
analysis
thermodynamic
evaluation
based
on
principles
were
carried
out
using
Engineering
Equation
Solver
(EES)
software.
Key
factors
such
as
speed,
radiation,
collector
area
critical
in
determining
performance.
To
enhance
effectiveness,
conducted
comprehensive
comparison
optimization
algorithms,
incorporating
Non-dominated
Sorting
Genetic
Algorithm-II
(NSGA-II)
Pareto
front
value
optimization.
This
approach
significantly
outperformed
other
algorithms
Particle
Swarm
Optimization
(PSO),
Algorithm
(GA),
Simulated
Annealing
(SA)
terms
efficiency
cost-effectiveness.
achieved
exergy
14.46
%
cost
rate
$74.98
per
hour,
demonstrating
its
suitability
intended
functions.
Moreover,
exergoenvironmental
was
proposed
plant.
findings
revealed
that
key
component
HEX
has
factor
due
their
use
hot
water,
which
zero
unit
impact.
Additionally,
pumps
demonstrated
impact
factor,
indicating
negligible
component-related
environmental
impacts.
Sensitivity
further
evaluated
performance
parameters,
revealing
increases
irradiation
lead
decreased
total
rates,
while
higher
turbine
temperatures
resulted
remarkable
14.08
reduction
rate.
These
results
underscore
economic
viability
operating
strengthen
argument
adoption
financial
perspective.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
54, С. 104031 - 104031
Опубликована: Янв. 18, 2024
Among
the
different
electrical
energy
storage
technologies,
Carnot
batteries
are
promising
options
with
low
specific
cost
that
do
not
suffer
from
geographical
limitations
and
power-capacity
coupling.
In
addition
to
power
balancing,
this
approach
can
also
be
unique
for
multi-vector
management.
A
comprehensive
evaluation
(thermodynamic
design
exergoenvironmental
exergoeconomic
evaluations),
comparison,
multi-objective
optimization
of
four
battery
configurations
based
on
solar-electric
a
geothermal
source
is
presented.
Geothermal
simultaneously
improve
thermodynamic
environmental
performances
battery.
The
main
structure
all
obtained
PV
captured
thermal
source.
Brayton,
heat
pump,
flash,
organic
Rankine
cycle
(ORC)
units
periodically
integrated.
outcomes
point
out
discharging
process
an
ORC
unit
flash-heat
pump
(F-HPC)-based
charging
makes
more
optimal
heat-to-power
efficiency.
Moreover,
regenerative-Brayton
(R-BC)
has
higher
investment
rate
compared
(in
process).
When
integrating
geothermal,
third
configuration
(R-HPC/R-BC)
experiences
greatest
improvement
(5.3-fold)
due
increase
in
received
Energy Conversion and Management X,
Год журнала:
2024,
Номер
22, С. 100571 - 100571
Опубликована: Март 16, 2024
This
research
presents
a
novel,
eco-efficient
hybrid
system
designed
for
the
simultaneous
production
of
power,
oxygen,
and
methanol.
It
utilizes
energy
from
coke
plants
incorporates
state-of-the-art
waste
heat
recovery
processes
(WHRPs).
The
effectively
merges
electricity
methanol
with
WHRPs,
improving
both
environmental
sustainability
economic
feasibility
in
industrial
transformation.
consists
fuel
reforming
combustion
unit,
unit
hydrogen
gas
through
water
electrolysis,
synthesis
module.
configuration
enables
12.72
MW
electricity,
0.51
kg/s
0.53
methanol,
achieving
an
productivity
46.8
%
exergy
efficiency
85.13
%.
analysis
indicates
competitive
costs
$0.099
per
kWh
$0.56
kg
surpasses
current
technologies
thermodynamic
efficiency,
operational
product
costs,
reduced
CO2
emissions,
demonstrating
its
potential
as
sustainable
economically
sound
solution
challenges.
supports
global
initiatives
fits
within
circular
economy
concept.
International Journal of Low-Carbon Technologies,
Год журнала:
2024,
Номер
19, С. 455 - 467
Опубликована: Янв. 1, 2024
Abstract
In
this
article,
a
novel
multi-generation
plant
is
addressed
and
assessed
from
the
energy,
exergy,
exergoenvironmental
exergoeconomic
points
of
view.
The
composed
two
main
units:
one
unit
for
energy
production
another
carbon
capture
methanol
synthesis.
Biomass
fuel,
solar
seawater
are
nutrients
in
plant.
Steam,
Brayton,
organic
Rankine
Kalina
cycles
have
been
employed
to
generate
electricity.
A
linear
Fresnel
collector-driven
farm
considered
as
an
auxiliary
heat
source.
addition,
integrated
desalination
based
on
multi-effect
unit,
microbial
fuel
cell
reverse
osmosis
has
installed
proposed
structure
offered
designed
under
new
configuration
layout
that
had
not
reported
publications.
From
outcomes,
can
produce
69.6
MW
net
electricity,
0.53
kg/s
methanol,
0.81
oxygen
gas,
73.8
fresh
water
~0.015
hydrogen
gas.
Under
such
performance,
be
51.72
27.5%
efficient
view
respectively.
Further,
total
cost
rate
environmental
impact
~3378
US$/h
294.1
mPts/s,
comparative
analysis
developed
exhibit
superiority
planned
five-objective
optimization
also
achieve
optimum
design
data
outcomes
