Quantification of Diesel Additives in Co-Processed Fuels via NIR Spectroscopy and Chemometric Modeling
Energy & Fuels,
Journal Year:
2025,
Volume and Issue:
39(9), P. 4421 - 4433
Published: Feb. 20, 2025
The
growing
global
population
and
increasing
energy
demands
are
placing
immense
pressure
on
the
sustainability
of
fossil
fuels
due
to
resource
depletion
environmental
concerns.
Adopting
a
circular
economy
approach,
which
repurposes
waste
materials
into
alternative
fuels,
presents
promising
solution
for
reducing
both
fuel
dependency
generation.
Diesel
additives
play
critical
role
in
enhancing
quality
performance;
however,
accurately
monitoring
their
concentrations
remains
challenge,
often
leading
overuse
elevated
costs.
This
study
utilizes
near-infrared
(NIR)
spectroscopy
coupled
with
partial
least-squares
(PLS)
modeling
enable
real-time
additive
concentrations,
optimizing
application,
We
tested
waste-derived
oils─such
as
tire
oil,
plastic
cooking
oil─alongside
conventional
diesel,
incorporating
three
key
additives:
cold-flow
improver
(CFI),
conductivity-lubricating
(CLI),
cetane
number
(CNI).
developed
predictive
models
demonstrated
calibration
coefficients
exceeding
0.98
RPD
values
4.5
CFI,
2.7
CLI,
4.4
CNI.
Repeatability
tests
produced
RSD
3.9%
6.9%
7.2%
Comprehensive
validation,
including
external
testing
statistical
evaluations
(RMSEC,
RMSEP,
RMSECV),
confirmed
models'
strong
accuracy
reliability.
These
findings
highlight
significant
potential
PLS
precise
determination
diesel
across
range
matrices,
making
them
highly
applicable
industrial
use
further
research.
Language: Английский
Optimizing CI Engine Performance with Waste Oil Biodiesel, Plastic Pyrolysis Oil, and Diesel Blends Using Python programming
Mohammed Azarudeen J.,
No information about this author
M. Anish,
No information about this author
J. Jayaprabakar
No information about this author
et al.
Published: April 29, 2025
Abstract
This
study
investigates
the
performance,
combustion,
and
emission
characteristics
of
ternary
fuel
blends
composed
diesel,
waste
cooking
oil
biodiesel,
pyrolysis
in
a
direct
injection
compression
ignition
(CI)
engine.
Experimental
tests
were
conducted
using
various
under
different
pressures
(180,
210,
240
bar)
engine
loads.
Performance
metrics
such
as
brake
thermal
efficiency
(BTE),
volumetric
efficiency,
exhaust
gas
temperature
(EGT)
analyzed,
alongside
combustion
parameters
like
heat
release
rate
(HRR)
peak
in-cylinder
pressure.
Emissions
NOx,
carbon
monoxide
(CO),
smoke
opacity,
unburned
hydrocarbons
(UHC)
also
evaluated.
The
results
reveal
that
an
pressure
bar
optimizes
improving
BTE
while
reducing
consumption
for
with
70%
10%
20%
sample
2
biodiesel
(P10B220D70),
15%
(P15B215D70),
5%
25%
(P5B225D70).
Combustion
analysis
shows
biodiesel-pyrolysis
achieve
faster
pre-mixed
compared
to
highest
at
bar.
However,
extremely
high
or
low
negatively
affect
efficiency.
Emission
indicates
NOx
emissions
vary
by
blend
type,
certain
1
(P5B125D70
(P5B225D70)
producing
lower
values
due
reduced
premixed
combustion.
CO
decrease
higher
pressure,
lighter-viscosity
exhibit
opacity.
UHC
levels
remain
relatively
stable
across
Correlation
identifies
most
influential
parameter
affecting
performance
emissions,
type
load
having
minimal
impact.
These
findings
underscore
potential
sustainable
alternatives
engines
when
optimized
appropriate
pressures.
Language: Английский
Status, developments, and sustainability of biowaste feedstock: A review of current progress
Renewable and Sustainable Energy Reviews,
Journal Year:
2025,
Volume and Issue:
217, P. 115769 - 115769
Published: April 25, 2025
Language: Английский
High Proportion of Biofuel Replacement for Conventional Diesel Using Safflower Biodiesel and Diethyl Ether Blends in a Cng-Powered Rcci Operation of a Diesel Engine
Published: Jan. 1, 2024
Language: Английский