Processes,
Journal Year:
2024,
Volume and Issue:
12(11), P. 2599 - 2599
Published: Nov. 19, 2024
In
this
paper,
the
negative
impact
of
charging
load
generated
by
disorderly
scheme
large-scale
pure
electric
vehicles
on
operation
performance
power
grid
system
and
problem
reducing
its
energy
efficiency
are
studied
analyzed.
First,
based
Matlab
2022a
simulation
software
Monte
Carlo
random
sampling
method,
probability
density
model
factors
affecting
is
constructed,
total
different
quantities
simulated.
Second,
IEEE33-node
distribution
network
introduced
to
simulate
influence
under
permeability
schemes.
Finally,
multi-objective
genetic
algorithm
used
optimize
cost
battery
life.
Taking
20%
as
an
example,
research
results
show
that,
compared
with
scheme,
optimization
reduces
peaking
valley
difference
rate
24.34%,
generation
29.5%,
23.9%.
The
profit
increased
45.8%,
conclusion
has
practical
significance
for
vehicles.
International Journal of Engine Research,
Journal Year:
2025,
Volume and Issue:
unknown
Published: April 11, 2025
Hydrogen-fueled
internal
combustion
engine
(H
2
ICE),
along
with
fuel
cells,
can
play
an
important
role
in
the
expansion
of
hydrogen
infrastructure.
However,
due
to
high-temperature
during
process,
nitrogen
oxides
(NOx)
are
produced,
and
low
minimum
ignition
energy
lead
abnormal
combustion,
such
as
pre-ignition
backfire,
under
high-load
operating
conditions.
Therefore,
injecting
water
into
H
ICE
reduce
temperature
chamber
be
effective
method
address
both
issues.
intake
port
has
disadvantage
reducing
volumetric
efficiency
after
vaporization,
so
that
it
is
more
inject
directly
chamber.
In
this
study,
dual
direct
injection
technology
was
applied
a
system,
where
also
injected
chamber,
experimentally
implement
for
NOx
while
improving
highest
load.
The
timings
quantities
were
varied
at
1500
rpm,
extent
maximum
power
improvement
through
determined
conditions
just
before
knocking
occurred.
results
showed
reduction
rate
reached
80%,
load
could
improved
by
16%
injection.
