Hungarian Agricultural Engineering,
Journal Year:
2023,
Volume and Issue:
42, P. 26 - 32
Published: Jan. 1, 2023
The
global
population
has
been
steadily
increasing,
putting
pressure
on
available
resources,
including
agricultural
land.
decrease
of
land
made
it
difficult
to
sustainably
produce
enough
food
feed
the
growing
population.
Global
warming
and
water
issues
have
also
challenging
grow
crops,
with
changing
weather
patterns
scarcity
affecting
yields.
To
address
these
challenges,
there
is
a
need
modernize
technologies.
One
possibilities
improvement
post-harvest
By
gaining
more
knowledge
mechanical
behavior
particulate
materials
using
discrete
element
modeling,
may
be
possible
optimize
technologies
for
processing
storage.
This
could
lead
improvements
in
quality
safety
products
while
reducing
waste
increasing
efficiency.
paper
reviews
key
literature
concerned
applications
DEM
parameters
calibration
particles,
which
generally
are
corn,
rice,
wheat,
soybean,
sunflower
seed
soil
particles.
Agronomy,
Journal Year:
2024,
Volume and Issue:
14(11), P. 2641 - 2641
Published: Nov. 9, 2024
An
optimized
tumbling
process
can
significantly
improve
the
oxygen
dissolving
capacity
of
composting
and
fertilizer
quality:
by
increasing
fluffiness
lower
layer
pile,
localized
anaerobic
fermentation
be
avoided,
thereby
enhancing
compost
quality.
This
paper
presents
a
method
for
improving
rotary
drum
food
waste
through
combination
simulation
optimization
experimental
validation.
First,
discrete
element
was
used
to
optimize
key
parameters
process.
The
response
surface
then
employed
analyze
test
results
determine
optimal
conditions.
To
ensure
reliability
equipment
under
this
method,
failure
risk
analysis
conducted
using
finite
method.
showed
that
with
reactor
speed
3.5
r/min,
horizontal
angle
inclination
2.5°,
mixing
blade
43°,
pitch
580
mm,
pile
increased
8.515%,
achieving
best
indirectly
capacity.
maximum
deformation
load-bearing
components
only
0.0548
minimum
safety
factor
4.408
(≥1
is
considered
safe).
A
14-day
experiment
validate
parameters.
temperature
reached
68.34
°C
(lasting
7
days),
pH,
moisture
content,
C/N
ratio,
humus
substances,
humic
acid,
fulvic
acid
contents
all
meeting
or
exceeding
levels
recommended
Chinese
national
standards.
These
findings
indicate
device
effectively
improved
stability
dissolved
efficiency
composting,
providing
valuable
practical
insights
research
foundation
in
other
organic
wastes.
Applied Sciences,
Journal Year:
2023,
Volume and Issue:
13(15), P. 8941 - 8941
Published: Aug. 3, 2023
This
study
designed
two
levels
of
quantitative
fertilizer
distribution
to
investigate
precision
fertilization
applications
in
orchards
South
Xinjiang,
China,
which
have
vast
rows
and
narrow
plant
spaces.
The
machine
comprised
a
base
frame,
ditching
device,
fertilizing
apparatus
an
earth-covering
device.
design
parameters
the
flow
stabilization
screw,
conveyor
screw
single-ring
quantity
were
summarised
using
theoretical
analysis.
was
verified
via
experiment
by
combining
EDEM
software.
Three-factor
three-level
Box–Behnken
tests
conducted
spiral
rotation
speed
conveyor,
advancing
opening
degree
outlet
as
test
factors
coefficient
variation
(CV)
uniformity
index—thus
obtaining
optimal
working
parameters.
simulation
results
revealed
that
145.6
g,
fulfilling
requirements.
prototype
testing
showed
CV
6.521%
when
66
RPM,
42%
2.7
km/h—thus
meeting
needs
operations.
distributors
applied
processes
with
wide-row
spaces
China
able
effectively
carry
out
applications.
These
data
could
also
provide
references
for
optimization
distributors.
Journal of Computational Methods in Sciences and Engineering,
Journal Year:
2024,
Volume and Issue:
24(6), P. 3477 - 3492
Published: Nov. 1, 2024
The
application
of
solid
organic
fertilizer
is
primarily
a
manual
process,
leading
to
inefficiencies
and
substantial
labor
demands.
complexity
the
task,
combined
with
market’s
lack
machinery
capable
both
loading
spreading,
presents
significant
challenges.
This
study
introduced
design
an
integrated
machine
that
facilitates
loading,
transporting,
spreading
fertilizer.
Utilizing
discrete
element
method,
we
simulated
these
processes
refine
machine’s
efficiency.
EDEM
software
was
used
for
simulation
calculation.
goal
identify
optimal
parameters
functions.
Factors
such
as
forward
speed,
roller
height
were
evaluated
their
impact
on
uniformity,
using
Design-Expert
experimental
design.
Through
Box–Behnken
approach,
second-order
regression
model
developed
refined.
optimization
process
identified
most
effective
combination
operational
parameters:
speed
0.42
meters
per
second,
216
revolutions
minute,
545
millimeters.
These
specifications
intended
machine,
enhancing
efficiency
transport,
activities.
Hungarian Agricultural Engineering,
Journal Year:
2023,
Volume and Issue:
42, P. 26 - 32
Published: Jan. 1, 2023
The
global
population
has
been
steadily
increasing,
putting
pressure
on
available
resources,
including
agricultural
land.
decrease
of
land
made
it
difficult
to
sustainably
produce
enough
food
feed
the
growing
population.
Global
warming
and
water
issues
have
also
challenging
grow
crops,
with
changing
weather
patterns
scarcity
affecting
yields.
To
address
these
challenges,
there
is
a
need
modernize
technologies.
One
possibilities
improvement
post-harvest
By
gaining
more
knowledge
mechanical
behavior
particulate
materials
using
discrete
element
modeling,
may
be
possible
optimize
technologies
for
processing
storage.
This
could
lead
improvements
in
quality
safety
products
while
reducing
waste
increasing
efficiency.
paper
reviews
key
literature
concerned
applications
DEM
parameters
calibration
particles,
which
generally
are
corn,
rice,
wheat,
soybean,
sunflower
seed
soil
particles.
