Journal of Marine Science and Engineering,
Journal Year:
2024,
Volume and Issue:
12(12), P. 2192 - 2192
Published: Nov. 30, 2024
Increasing
the
use
of
renewable
energy
sources
is
essential
to
reduce
fossil
fuels
in
internal
combustion
engines
and
greenhouse
gas
emissions.
An
experimental
numerical
simulation
study
process
a
compression
ignition
engine
was
carried
out
by
replacing
diesel
with
dual
fuel
produced
from
sources.
In
conventional
dual-fuel
applications,
used
initiate
natural
or
petroleum
gas.
present
study,
replaced
advanced
biodiesel
–
hydrotreated
vegetable
oil,
biogas.
mixture
60%
(by
volume)
40%
carbon
dioxide
replicate
biogas
while
maintaining
40%,
60%,
80%
share
fuel.
It
observed
that
using
significantly
slowed
down
process,
which
normally
resulted
poorer
performance.
One
way
compensate
for
lack
(due
presence
dioxide)
cylinder
such
as
hydrogen,
has
high
content.
To
analyze
effect
hydrogen
on
added
replicated
at
10%,
20%,
30%
volume,
(natural
+
hydrogen)-to-carbon
volume
ratio
60%/40%
expected
share.
The
analysis,
conducted
AVL
BOOST
software
(Austria),
determined
heat
release
rate,
temperature,
pressure
rise
operation
different
compared
results
those
diesel.
found
when
operated
medium
load
flammability
approaching
limit,
addition
improved
characteristics
engine.
SAE technical papers on CD-ROM/SAE technical paper series,
Journal Year:
2025,
Volume and Issue:
1
Published: April 1, 2025
<div
class="section
abstract"><div
class="htmlview
paragraph">The
transport
sector
is
responsible
for
about
one
third
of
the
global
CO2
emissions.
To
align
to
net
zero
emission
scenario,
transportation
needs
implementation
policies
aimed
reduce
as
much
possible
highly
emitting
options
and,
at
same
time,
use
new
technologies
environmental
impact
methods
whose
emissions
cannot
be
entirely
eliminated.</div><div
paragraph">An
exploitable
solution
internal
combustion
engine
(ICE),
even
in
nearest
future,
would
hydrogen
a
fuel
these
engines.
This
supported
by
fact
that
H2-ICE
only
ICE
technology
currently
capable
meeting
standards
imposed
European
Union
2035.
Due
possibility
different
injection
strategies
well
variation
in-cylinder
back
pressure,
comprehensive
knowledge
jet
behavior
and
characteristics
fundamental
improving
process
direct
H2-ICE.</div><div
paragraph">In
this
context,
current
study
focuses
on
characterization
experimental
jets
terms
mass
flow
rate
morphology
under
wide
range
engine-like
conditions
an
injector
appropriate
applications.
A
measuring
system,
suitable
gaseous
fuels,
was
used
instantaneous
total
rates
dynamic
entire
system.
The
spatial
temporal
evolution
under-expanded
H2
studied
Z-type
schlieren
optical
setup.
injected
into
constant-volume
vessel
(CVCV)
pressures
(up
50
bar)
ambient
simulating
typical
conditions.
Measurements
penetrations,
width,
areas
gas
showed
strong
dependence
those
parameters.</div></div>
