Energy Science & Engineering,
Год журнала:
2024,
Номер
unknown
Опубликована: Дек. 15, 2024
ABSTRACT
Internal
combustion
engines
(ICEs)
can
be
used
in
power
plants
to
ensure
flexibility
electricity
generation.
The
use
of
carbon‐free
fuels,
such
as
hydrogen
and
ammonia,
ICEs
is
a
way
decrease
greenhouse
gas
emissions
gradually
until
new
carbon‐neutral
technology
has
been
fully
implemented.
By
mixing
small
amounts
these
compounds
into
natural
(NG),
the
quality
requirements
still
achieved
modification
work
on
engine
minimized.
In
this
study,
CO
2eq
emission
intensity
was
calculated
for
different
NG
compositions
blended
with
or
ammonia
while
mixture
within
specifications.
results
showed
that
addition
reduces
more
than
reduction
depends
quality.
utilizing
H
2
‐NG
NH
3
mixtures
fuels
ICEs,
reduced
by
37%–44%
3%–8%,
respectively,
compared
running
diesel
oil
gas.
novelty
study
demonstrate
potential
cutting
GHG
production
using
fuel
blends,
fulfilling
existing
agreed
engines.
Marine Technology Society Journal,
Год журнала:
2025,
Номер
59(1), С. 132 - 146
Опубликована: Янв. 24, 2025
Abstract
The
International
Marine
Organization
ambitious
greenhouse
gas
reduction
targets
for
shipping
necessitate
a
rapid
transition
to
zero-emission
fuels.
This
paper
addresses
this
critical
need
by
providing
comparative
analysis
of
promising
green
fuels
maritime
applications.
Available
alternative
were
reviewed,
with
comparison
the
most
viable
options
in
terms
environmental
impact.
Key
research
on
utilization
these
was
examined.
Additionally,
feasibility
implementing
across
different
ship
types
assessed.
By
exploring
both
technical
considerations
and
growth
prospects,
valuable
resource
is
offered
stakeholders
navigating
toward
sustainable
future.
Marine Pollution Bulletin,
Год журнала:
2025,
Номер
214, С. 117688 - 117688
Опубликована: Фев. 22, 2025
The
maritime
industry,
a
cornerstone
of
global
trade,
faces
mounting
pressure
to
improve
energy
efficiency
and
minimize
environmental
impact.
To
address
this,
systematic
review
is
proposed
analyze
trends
advancements,
aiming
the
ships.
This
comprehensively
examines
contemporary
methodologies
persistent
challenges
in
assessing
ship
efficiency.
We
recent
advancements
design
operational
practices
that
promote
gains.
Additionally,
we
explore
evolution
regulatory
frameworks
industry
standards
governing
assessment.
Key
challenges,
including
data
availability,
measurement
accuracy,
technological
limitations,
are
scrutinized
along
with
potential
solutions.
aims
equip
researchers,
practitioners,
policymakers
comprehensive
understanding
current
landscape,
paving
way
for
future
research
policy
initiatives
drive
sustainable
transportation.
Sustainability,
Год журнала:
2025,
Номер
17(6), С. 2368 - 2368
Опубликована: Март 7, 2025
Deciding
on
appropriate
transport
modes
is
critical
in
terms
of
emissions,
time,
and
cost.
However,
routes
do
not
always
allow
for
the
selection
most
cost-effective
environmentally
friendly
transport.
Therefore,
various
transportation
must
be
used
together
to
overcome
these
constraints.
This
study
investigates
use
a
combination
different
container
from
Filyos
Turkey
Vienna.
Constanța
has
been
selected
as
trans-shipment
port
route,
three
distinct
have
Vienna,
including
road,
rail,
riverway.
As
result
this
study,
fuel
consumption,
CO2
cost
each
intermodal
type
were
evaluated
comparatively.
Although
seaway
advantageous
cost,
it
determined
that
road
more
beneficial
time.
The
maximum
minimum
emissions
calculated
2,107,124
tonnes
365.6
roadway
transportation,
respectively.
Journal of Marine Science and Engineering,
Год журнала:
2025,
Номер
13(4), С. 770 - 770
Опубликована: Апрель 12, 2025
Cryogenic
Carbon
Capture
(CCC)
has
emerged
as
a
promising
technology
to
enhance
the
sustainability
of
Liquefied
Natural
Gas
(LNG)
operations
in
line
with
International
Maritime
Organization’s
(IMO)
decarbonization
targets.
This
study
investigates
integration
CCC
within
Floating
Storage
and
Regasification
Units
(FSRUs),
leveraging
LNG’s
cryogenic
potential
improve
CO2
capture
efficiency
optimize
energy
use.
A
detailed
structural
analysis
FSRU’s
balance
was
conducted
considering
variable
regasification
performance
open-
closed-loop
regimes,
followed
by
Thermoflow-based
simulation
assess
impact
under
real
operational
conditions.
The
results
demonstrate
that
incorporating
into
process
enables
effective
separation
from
flue
gas
emitted
Wärtsilä
8L50DF
6L50DF
dual-fuel
electric
diesel
generators,
well
boiler
system.
identifies
fuel
consumption
optimisation
22%
rate
100%,
where
requires
17.4
MW
combined
unitisation.
In
addition,
highlights
role
LNG
cold
optimising
heat
exchange
mitigating
thermal
losses.
These
findings
support
feasibility
viable
decarbonisation
strategy
for
FSRU
operations.
Future
research
should
focus
on
improving
system
scalability
evaluating
long-term
varying
environmental
Sustainability,
Год журнала:
2024,
Номер
16(23), С. 10534 - 10534
Опубликована: Ноя. 30, 2024
The
International
Maritime
Organization
(IMO)
has
set
stringent
regulations
to
reduce
the
carbon
footprint
of
maritime
transport,
using
metrics
such
as
Energy
Efficiency
Existing
Ship
Index
(EEXI)
and
Carbon
Intensity
Indicator
(CII)
track
progress.
This
study
introduces
a
novel
approach
deep
reinforcement
learning
(DRL)
optimize
energy
efficiency
across
five
types
vessels:
cruise
ships,
car
carriers,
oil
tankers,
bulk
container
under
six
different
operational
scenarios,
varying
cargo
loads
weather
conditions.
Traditional
fuels,
like
marine
gas
(MGO)
intermediate
fuel
(IFO),
challenge
compliance
with
these
standards
unless
engine
power
restrictions
are
applied.
combines
DRL
alternative
fuels—bio-LNG
hydrogen—to
address
challenges.
algorithm,
which
dynamically
adjusts
parameters,
demonstrated
substantial
improvements
in
optimizing
consumption
performance.
Results
revealed
that
while
DRL,
increased
by
up
10%,
EEXI
values
decreased
8%
15%,
CII
ratings
improved
10%
30%
scenarios.
Specifically,
heavy
loads,
DRL-optimized
system
achieved
7.2
nmi/ton
compared
6.5
traditional
methods
reduced
value
from
4.2
3.86.
Additionally,
consistently
outperformed
optimization
methods,
demonstrating
superior
lower
emissions
all
tested
highlights
potential
advancing
suggests
further
research
could
explore
applications
other
vessel
integrating
additional
machine
techniques
enhance
optimization.
