CT&F - Ciencia Tecnología y Futuro,
Год журнала:
2023,
Номер
unknown, С. 39 - 54
Опубликована: Дек. 30, 2023
The
growing
demand
for
energy,
coupled
with
volatile
oil
prices
and
the
environmental
damage
caused
by
harmful
gases
produced
when
it
is
used,
has
prompted
countries
to
explore
alternative
energy
sources.
transportation
sector,
an
important
end-user
of
petroleum,
must
adapt
changing
landscape
opt
new
technologies
remain
competitive.
study
conducted
a
thorough
thermodynamic
analysis
assess
economic
impact
using
biodiesel
(BD)
made
from
cold-pressed
linseed
crude
oil,
commercial
diesel
fuel
(DF),
ethanol
in
compression-ignition
(CI)
engine.
detailed
performance
emission
data
recorded
single-cylinder
included
exergy,
sustainability,
exergoeconomic,
exergoenvironmental,
exergoenviroeconomic
parameters.
results
pointed
out
that
increases
load,
B20E5
reaching
6.887
kW
at
25%
load
18.908
75%
load.
BD
blended
fuels
were
found
have
higher
compared
DF.
At
50%
DF
B20
energies
10.765
10.888
kW,
respectively.
clearly
demonstrates
outperforms
both
DF-BD
binary
blends
DF-BD-ethanol
terms
thermal
exergy
efficiency
values.
Furthermore,
exhibits
lower
entropy
generation
destruction
than
other
ternary
blends.
maximum
efficiencies
DF,
B20,
B20E10
28.5%,
25.8%,
24.7%,
losses
determined
be
10.495
12.317
13.134
respectively,
under
same
conditions.
Binary
cost
power
engine
shaft
due
expensive
market
oil-based
However,
estimated
2.8%
5.3%
full
These
findings
demonstrate
clear
advantages
over
impact.
Additionally,
infusion
into
reduces
damage.
This
provides
unique
perspective
on
sustainable
research
serves
as
valuable
reference
future
studies.
Case Studies in Thermal Engineering,
Год журнала:
2024,
Номер
56, С. 104252 - 104252
Опубликована: Март 12, 2024
In
this
study,
experimental
and
thermodynamic
analyses
were
used
to
investigate
the
use
of
fuel
blends
created
by
adding
cerium
oxide
(CeO2)
aluminium
(Al2O3)
nanoparticles
diesel/heavy
oil
(HFO)
in
a
compression
ignition
engine.
single-cylinder
engine
was
tested
at
four
different
loads
constant
speed
3000
rpm.
The
experiments
measured
power,
consumption,
exhaust
gas
temperature,
casing
temperature
pollutants.
Thus,
study
on
energy,
efficiency
sustainability
carried
out
comparing
blends.
All
subjected
energy
exergy
efficiency,
lost
index
calculations.
addition
increases
loss
compared
D80F20
(80%
Diesel
+
20%
HFO)
blend.
Comparing
D80F20AL100
HFO
100
ppm
Al2O3)
D80F20CE100
CeO2)
blends,
is
10.76%
14.23%
higher
when
power
4000
W,
respectively.
as
more
are
added
reaches
12.60%
12.80%
for
D80F20CE25
20%HFO
25
fuels
under
W
load,
inclusion
diesel/HFO
gives
results
line
with
index.
International Journal of Engine Research,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 28, 2025
Biodiesel
has
wide
application
prospects
due
to
its
good
power
performance,
fuel
economy
and
emission
reduction.
Experimental
studies
have
found
that
the
measured
engine
vibration
presents
an
N-shaped
nonlinear
trend
with
increase
of
biodiesel
proportion
in
blends,
which
cannot
be
explained
solely
based
on
combustion
characteristics
blended
fuels.
To
study
mechanisms
for
this
vibration,
a
two-degree-of-freedom
model
piston–cylinder
system
was
established
verified
analyse
correspondence
between
in-cylinder
behaviour
dynamic
responses.
By
correlating
simulation
results
signals,
it
is
root
cause
coupling
effect
pressure
piston
inertial
force.
The
time
integral
lateral
force
interval
from
top
dead
centre
(TDC)
subsequent
slap
ultimately
determines
liner
vibrations.
These
key
findings
pave
fundamentals
analysis
engines
fuelled
other
alternative
fuels,
important
improve
operation
performances
including
reliability
assessment
NVH
control.
