Enhanced heat transfer/Journal of enhanced heat transfer,
Год журнала:
2024,
Номер
31(8), С. 1 - 17
Опубликована: Янв. 1, 2024
The
challenge
of
improving
the
efficiency
and
sustainability
reducing
emissions
diesel
engines
through
use
different
fuel
blends-such
as
diesel,
biodiesel,
blends
mixed
with
TiO<sub>2</sub>
nanoparticles-is
addressed
by
this
research.
study
investigates
how
performance,
emissions,
aspects
a
one-cylinder,
four-stroke,
water-cooled
engine
are
impacted
when
50
100
ppm
titanium
dioxide
(TiO<sub>2</sub>)
nanoparticles
added
to
various
biodiesel
under
varied
loads
ranging
from
25%
100%.
addition
leads
reductions
in
brake
specific
consumption
(BSFC)
up
8%
B0
14.29%
B15,
improvements
energy
2%
4.02%
exergy
1.88%
3.77%
B15.
With
regard
hydrocarbon
(HC)
decreased
18.4%
at
cost
nitric
oxide
(NO)
which
increased
5.87%.
performance
coefficient
(<i>Ex<sub>p</sub></i>)
index
(SI)
18.99%
5.63%,
respectively.
percentage
changes
showed
enhanced
lower
improved
conversion
inclusion
nanoparticles.
results
suggest
blends'
advantages
terms
conversion;
however,
it
is
also
important
look
economic
feasibility
stability
Bioengineering,
Год журнала:
2022,
Номер
10(1), С. 29 - 29
Опубликована: Дек. 25, 2022
Ever-increasing
population
growth
that
demands
more
energy
produces
tremendous
pressure
on
natural
reserves
such
as
coal
and
petroleum,
causing
their
depletion.
Climate
prediction
models
predict
drought
events
will
be
intense
during
the
21st
century
affecting
agricultural
productivity.
The
renewable
needs
in
global
supply
must
stabilize
surface
temperature
rise
to
1.5
°C
compared
pre-industrial
values.
To
address
climate
issue
higher
demand
without
depleting
fossil
reserves,
growing
bioenergy
feedstock
potential
resource
for
biodiesel
production
could
a
viable
alternative.
interest
biofuels
has
increased
due
its
benefits
over
fuels
flexibility
of
feedstocks.
Therefore,
this
review
article
focuses
different
biomass
resources
production,
properties,
procedure,
factors
catalysts
used,
greenhouse
gas
emissions
from
production.
Alexandria Engineering Journal,
Год журнала:
2023,
Номер
80, С. 269 - 281
Опубликована: Авг. 28, 2023
To
improve
the
fuel
properties
and
enhance
overall
characteristics
of
a
diesel
engine,
current
work
assesses
performance
combustion
attributes
engine
fueled
by
different
blends
diesel,
second
generation
biodiesel,
zinc
oxide
(ZnO)
nanoparticles.
The
biodiesel
was
prepared
using
transesterification
waste
cooking
vegetable
oil.
Zinc
nanoparticles
were
dispersed
in
at
one
dosage
level
50
ppm
ultrasonication
process
to
prevent
their
agglomeration
base
liquid.
experiments
performed
speeds
(1700,
2000,
2300,
2600,
2900)
RPM
full
load
operating
conditions.
experimental
results
revealed
that
addition
ZnO
compensated
for
poor
characteristic
hence
promoted
attributes.
torque
improved
6.74,
4.9
3.69%
while
BSFC
reduced
5.6,
6.44
2.5%
B0ZnO,
B20ZnO
B40ZnO
compared
B0,
B20
B40
respectively
2300
RPM.
In
addition,
heat
release
rate,
ignition
delay
period
in-cylinder
pressure
promoted.
additives
could
be
an
effective
approach
improving
applications.
Energy Conversion and Management X,
Год журнала:
2024,
Номер
23, С. 100675 - 100675
Опубликована: Июль 1, 2024
As
the
world
addresses
increasing
demand
for
sustainable
energy
solutions,
biodiesel
has
surfaced
as
a
viable
alternative
to
conventional
fossil
fuels.
The
expansion
of
feedstock
plantations,
particularly
palm
oil
in
tropical
regions,
can
lead
deforestation,
loss
biodiversity,
and
significant
carbon
emissions
from
destruction
carbon-rich
ecosystems.
That
is
why
this
article
focuses
on
production
waste
sources
order
maintain
balance
ecosystem.
This
review
paper
discusses
global
landscape
need
renewable
environmentally
friendly
alternatives.
It
explores
various
depth
that
are
investigated
production,
comprising
cooking
oil,
animal
fats,
algae,
other
organic
residues.
Each
analyzed
its
viability,
challenges,
economic
feasibility
production.
A
critical
assessment
different
methods,
such
transesterification,
pyrolysis,
thermochemical
conversion,
anaerobic
digestion,
thermal
cracking,
hydro-treating
enzymatic
processes,
presented,
highlighting
key
factors
influencing
their
efficiency
scalability.
Recent
developments
enhance
waste-derived
production's
sustainability
viability
meet
UN
Sustainable
Development
Goals
also
highlighted.
Furthermore,
environmental
impact
biodiesel,
including
greenhouse
gas
land
use,
discussed
provide
holistic
understanding
ecological
footprint.
significantly
increase
brake
engine
along
with
substantial
decrease
like
CO
HC.
However,
NOx
CO2
increased
application
sources.
be
reduced
by
exhaust
recirculation
selective
catalytic
reduction
techniques.
regulatory
frameworks
standards
governing
sources,
emphasizing
harmonized
policies
encourage
widespread
adoption.
concludes
outlining
future
research
directions
potential
breakthroughs
could
further
effectiveness,
sustainability,
scalability
Waste
Cooking
Oil
(WCO)
fats
currently
most
economically
feasible
options
due
low
cost
established
collection
processing
infrastructure.
Algae
present
high
but
require
technological
advancements
reductions
become
viable.
aims
assist
researchers,
policymakers,
industry
stakeholders
advancing
utilization
materials
promoting
more
landscape.
