Herald of Polotsk State University Series B Industry Applied Sciences,
Journal Year:
2023,
Volume and Issue:
47(1), P. 100 - 107
Published: Feb. 22, 2023
The
article
presents
the
results
of
analysis
effectiveness
express
tests
for
monitoring
current
state
engine
oil
during
period
its
operation
in
an
internal
combustion
and
determining
limit
used
oil.
diagnostics
by
physicochemical,
rheological
optical
methods
changing
fresh
motor
from
lubrication
system
a
diesel
at
regular
mileage
intervals
are
presented.
A
software
product
project
is
proposed
form
mobile
application
diagnosing
based
on
paper
chromatography
using
drop
test,
which
will
allow
individual
motorists
to
determine
need
replace
and,
as
result,
increase
services
tribocouplings
vehicle
their
overhaul
period.
Energy & Fuels,
Journal Year:
2023,
Volume and Issue:
37(23), P. 18266 - 18290
Published: Nov. 16, 2023
The
development
of
oil
refining
in
advanced
nations
is
mostly
focused
on
low-carbon
fuel.
Similar
efforts
are
being
made
to
improve
the
fuel
efficiency
internal
combustion
engines,
which
will
result
lower
exhaust
emissions.
Furthermore,
by
assessing
indicated
trends
engine
building,
it
important
for
manufacturers
understand
how
requirements
gasoline
quality
indicators
change,
primarily
its
knock
resistance.
aim
current
comprehensive
article
study
state-of-the-art
review
emphasizing
recent
progress
and
prospects
producing
high-octane
toward
market
development.
branded
multifunctional
additives,
involving
friction
modifiers,
corrosion
inhibitor
components,
as
well
detergent
components
presented.
motor
gasoline,
antiknocking
characteristics
oxygenated
compounds
exhibited.
Besides,
perspective
technologies,
including
different
types
declared.
formulation
effective
surrogates
a
challenging
task
due
strategies,
design,
variable
operating
conditions
spark-ignition
engines.
extensive
direct
injection
turbocharging
technologies
constrained
actual
compression
ratio
Likewise,
an
increase
resistance
produced
would
further
new
Results in Engineering,
Journal Year:
2024,
Volume and Issue:
23, P. 102482 - 102482
Published: June 28, 2024
Water-in-diesel
emulsion
(WIDE)
fuel
has
been
employed
to
reduce
the
emissions
from
diesel
engines.
Emulsified
in
combustion
chamber
experiences
secondary
atomization,
leading
micro-explosions
that
lower
temperature
and
improve
atomization.
As
a
result,
it
reduces
improves
efficiency.
fuels
often
face
challenges
with
water
separation
over
time;
therefore,
chemical
surfactants
have
traditionally
used
prevent
emulsified
fuel.
While
biosurfactants
offer
more
environmentally
friendly
option
compared
traditional
surfactants,
there
is
research
gap
regarding
use
of
biosurfactant.
This
study
aims
investigate
effect
biosurfactant
concentration
on
properties,
stability,
particles
size,
microexplosions.
In
this
study,
six
biodiesel
were
developed
10
%
distilled
(lecithin
63
cocamide
DEA
37
%)
ranging
0.5
3.0
%.
The
stability
properties
these
examined.
Further,
Microscopy
was
examine
particle
sizes
distributions
suspended
droplets
hot
plate
technique
high-speed
camera
record
micro-explosions.
results
illustrate
increase
increases
density
viscosity
while
reducing
surface
tension,
droplet
micro-explosion
peak
temperature.
Results in Engineering,
Journal Year:
2023,
Volume and Issue:
20, P. 101429 - 101429
Published: Sept. 16, 2023
This
work
proposes
a
general
method
for
establishing
the
lubrication
analysis
model
of
ball
bearing
and
oil-air
multiphase
flow
characteristics
inside
is
revealed
by
CFD.
Based
on
geometric
feature,
micro-clearance
in
chamber
introduced
into
simulation
model,
complicated
boundary
shape
developed.
Meanwhile,
divided
hexahedron
elements
mesh
density
near
contact
region
increased,
which
promotes
convergence
accuracy
solution.
Then,
performance
experiment
conducted,
demonstrate
that
this
could
capture
bearing.
Moreover,
evolution
hydrodynamic
behavior,
including
distribution,
temperature
during
different
states,
displayed.
The
effects
structure
working
condition
are
quantified.
results
represent
suitable
clearance
size
improve
internal
patterns
