International Journal of Renewable Energy Development,
Год журнала:
2024,
Номер
13(6), С. 1175 - 1190
Опубликована: Окт. 27, 2024
In
the
ongoing
search
for
an
alternative
fuel
diesel
engines,
biogas
is
attractive
option.
Biogas
can
be
used
in
dual-fuel
mode
with
as
pilot
fuel.
This
work
investigates
modeling
of
injecting
strategies
a
waste-derived
biogas-powered
engine.
Engine
performance
and
emissions
were
projected
using
supervised
machine
learning
methods
including
random
forest,
lasso
regression,
support
vector
machines
(SVM).
Mean
Squared
Error
(MSE),
R-squared
(R²),
Absolute
Percentage
(MAPE)
among
criteria
evaluations
models.
Random
Forest
has
shown
better
Brake
Thermal
Efficiency
(BTE)
test
R²
0.9938
low
MAPE
3.0741%.
once
more
exceeded
other
models
0.9715
4.2242%
estimating
Specific
Energy
Consumption
(BSEC).
With
0.9821
2.5801%
emerged
most
accurate
model
according
to
carbon
dioxide
(CO₂)
emission
modeling.
Analogous
results
monoxide
(CO)
prediction
based
on
obtained
0.8339
3.6099%.
outperformed
Linear
Regression
0.9756%
7.2056%
case
nitrogen
oxide
(NOx)
emissions.
showed
constant
overall
criteria.
paper
emphasizes
how
well
especially
prognosticate
engines.
Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Янв. 15, 2025
The
article
aims
to
investigate
the
characteristics
of
compression
ignition
(CI)
engines
fuelled
with
blends
kapok
oil
methyl
ester
(KME)
and
turpentine
(TO)
inclusion
diethyl
ether
(DEE)
as
a
fuel
additive
RSM
has
been
used
analyse
engine
characteristics.
design
matrix
is
created
for
50%
100%
loading
30%
70%
blending
in
TO
ester.
experiment
was
conducted
on
water-cooled
5.2
kW
CI
30%,
50%,
KME
blend.
According
test
results,
50–50
have
brake
thermal
efficiency
29.13%.
Another
designed
load
range
DEE
0%
20%
50
KT
blend
highest
(30.30%)
lowest
brake-specific
energy
consumption.
emissions
carbon
monoxide,
hydrocarbons,
smoke
decrease
8.25
g/kWh,
0.13
57%,
respectively.
combustion
process
leads
peak
pressure
net
heat
release
rate,
which
are
72
bar
74.93
kJ/
O
CA,
outcome
50–50%
blends,
improved
performance
reduced
emissions.
