ACS Omega,
Год журнала:
2024,
Номер
9(46), С. 46017 - 46029
Опубликована: Ноя. 7, 2024
By
integrating
innovative
technologies
to
enhance
the
efficiency
and
sustainability
of
production,
this
study
specifies
establishment
a
cutting-edge
growing
system
for
Environmental Chemistry Letters,
Год журнала:
2024,
Номер
22(3), С. 1005 - 1071
Опубликована: Фев. 13, 2024
Abstract
The
excessive
reliance
on
fossil
fuels
has
resulted
in
an
energy
crisis,
environmental
pollution,
and
health
problems,
calling
for
alternative
such
as
biodiesel.
Here,
we
review
computational
chemistry
machine
learning
optimizing
biodiesel
production
from
waste.
This
article
presents
techniques,
characteristics,
transesterification,
waste
materials,
policies
encouraging
Computational
techniques
are
applied
to
catalyst
design
deactivation,
reaction
reactor
optimization,
stability
assessment,
feedstock
analysis,
process
scale-up,
mechanims,
molecular
dynamics
simulation.
Waste
comprise
cooking
oil,
animal
fat,
vegetable
algae,
fish
waste,
municipal
solid
sewage
sludge.
oil
represents
about
10%
of
global
production,
restaurants
alone
produce
over
1,000,000
m
3
annual.
Microalgae
produces
250
times
more
per
acre
than
soybeans
7–31
palm
oil.
Transesterification
food
lipids
can
with
a
100%
yield.
Sewage
sludge
significant
biomass
that
contribute
renewable
production.
Energies,
Год журнала:
2024,
Номер
17(2), С. 344 - 344
Опубликована: Янв. 10, 2024
Faced
with
the
depletion
of
fossil
fuels
and
increasingly
serious
environmental
pollution,
finding
an
environmentally
friendly
renewable
alternative
fuel
has
become
one
current
research
focuses.
In
order
to
find
new
fuels,
reduce
dependence
on
improve
air
quality,
promote
sustainable
development
goals,
castor
biodiesel
was
produced
through
transesterification,
mixed
diesel
in
a
certain
proportion.
The
engine
performance
emissions
were
compared
analyzed
under
fixed
load
different
speeds
agricultural
engines.
Biofuel,
as
containing
oxygen,
promotes
complete
combustion
extent.
As
proportion
increases,
pollutants
such
CO,
HC,
smoke
show
decreasing
trend.
lowest
observed
B80
blend
at
1800
rpm,
0.3%,
23
ppm,
3%,
respectively.
On
contrary,
CO2
NOx
are
higher
than
those
2.7
diesel,
reaching
2.5%
332
ppm
respectively
rpm.
lower
calorific
value
viscosity
result
decrease
BTE
increase
BSFC
blends.
Higher
temperatures
high
oxidation
reactions,
resulting
reduced
emissions,
but
increased
emissions.
At
speeds,
consumption
decreases.
Overall,
similar
physical
chemical
properties
can
be
for
use
CI
engines,
making
it
excellent
fuel.
Energy Conversion and Management X,
Год журнала:
2024,
Номер
23, С. 100669 - 100669
Опубликована: Июль 1, 2024
One
of
the
main
limitations
to
economic
sustainability
biodiesel
production
remains
high
feedstock
cost.
Modeling
and
optimization
are
crucial
steps
determine
if
processes
(esterification
transesterification)
involved
in
economically
viable.
Phenomenological
or
mechanistic
models
can
simulate
processes.
These
methods
have
been
used
manage
processes,
but
their
broad
use
has
constrained
by
computational
complexity
numerical
difficulties.
Therefore,
it
is
necessary
quick,
effective,
accurate,
resilient
modeling
methodologies
regulate
such
complex
systems.
Data-driven
machine-learning
(ML)
techniques
offer
a
potential
replacement
for
conventional
deal
with
nonlinear,
unpredictable,
complex,
multivariate
nature
Artificial
neural
networks
(ANN)
adaptive
neuro-fuzzy
inference
systems
(ANFIS)
most
often
utilized
ML
tools
research.
To
effectively
attain
maximum
yield,
suitable
based
on
nature-inspired
algorithms
need
be
integrated
these
obtain
best
possible
combination
various
operating
variables.
Future
research
should
focus
utilizing
approaches
monitoring
managing
increase
effectiveness
promote
commercial
feasibility.
Thus,
review
discusses
optimizing
Results in Engineering,
Год журнала:
2024,
Номер
24, С. 102826 - 102826
Опубликована: Сен. 3, 2024
Electrospinning
has
emerged
as
a
versatile
technique
for
fabricating
polymer
nanofibers
with
diameters
ranging
from
tens
to
hundreds
of
nanometers.
Precisely
controlling
and
predicting
the
nanofiber
diameter
is
crucial
various
applications.
The
complex
interplay
multiple
electrospinning
parameters
presents
significant
challenge
in
this
endeavor.
This
study
introduces
novel
data-driven
approach
using
machine
learning
(ML)
predict
optimize
electrospun
nanofibers.
A
comprehensive
dataset
approximately
430
data
points
was
compiled
literature
sources,
including
properties
process
parameters.
Six
ML
algorithms
were
evaluated:
Decision
Tree
(DT),
Extra
Trees
Regression
(ETR),
Kernel
Ridge
(KRR),
Random
Forest
(RF),
Support
Vector
(SVR),
eXtreme
Gradient
Boosting
(XGB).
75/25
train-test
split
selected
optimal
model
evaluation,
10-fold
cross-validation
employed
hyperparameter
tuning
estimating
variability
performance
metrics.
RF
ETR
demonstrated
best
predictive
accuracy,
R2
values
0.9468
0.9421,
RMSE
92.3
nm
96.1
nm,
respectively,
on
test
set.
Feature
importance
analysis
SHapley
Additive
exPlanations
(SHAP)
revealed
that
concentration,
applied
voltage,
feed
rate
significantly
influence
diameter,
which
further
elucidated
by
partial
dependence
plots.
To
facilitate
accessibility
collaboration,
an
interactive
web
server
called
ENDP
developed,
allowing
users
input
diameter.
showcases
potential
guiding
design
optimization
nanofibers,
providing
valuable
insights
tailoring
their
into
specific
Green Chemistry,
Год журнала:
2024,
Номер
26(4), С. 2258 - 2268
Опубликована: Янв. 1, 2024
We
synthesized
a
high-performance
epoxy
insulating
material
that
can
be
recycled
and
reused
using
triethanolamine
as
transesterification
catalyst
co-accelerator.
The
new
physically
recovered
through
hot-pressing
regenerated
via
chemical
degradation.
Energies,
Год журнала:
2025,
Номер
18(4), С. 768 - 768
Опубликована: Фев. 7, 2025
Humanity
has
consumed
large
amounts
of
energy
in
recent
decades.
Energy
requirements
increase
continuously,
and
fossil
fuel
overuse
pollutes
the
environment
extremely.
The
researchers
turned
their
attention
to
alternative
solutions,
such
as
renewable
sources
fuels,
which
reduce
negative
emissions.
At
same
time,
biodiesel
is
produced
from
environmentally
friendly
raw
materials
a
competitive
with
acceptable
properties.
scientific
community
investigates
new
approaches
further
improve
physicochemical
properties
more
economical
ways.
Artificial
intelligence
nature-inspired
techniques
are
particularly
capable
searching
for
optimal
fuels
complex
optimization
fields.
current
study
concerns
review
production
based
on
evolutionary
computation
methods.
These
methods
lead
innovative
development,
costing
less
lower
sulfur
content.
Except
economic
profits,
reduction
environmental
emissions
praxis
confirms
appropriateness
consumption
than
blends.
algorithms’
accuracy
effectiveness
were
evaluated
various
case
studies
detailed
results
offered
every
publication.
laboratories
tested
common
engines
too.
In
literature,
there
exists
gap
relation
financial
aspects
production,
should
also
be
investigated.