ACS Sustainable Chemistry & Engineering,
Journal Year:
2022,
Volume and Issue:
10(50), P. 16803 - 16813
Published: Dec. 5, 2022
The
bioenergy
industry
has
been
challenged
by
unstable
flow
and
transport
of
milled
biomass
in
material
handling
operations.
Handling
issues
such
as
hopper
clogging
auger
jamming
are
attributed
to
knowledge
gaps
between
existing
units
designed
for
bulk
solids
their
suitability
with
high
compressibility.
This
work
investigates
various
behaviors
granular
woody
wedge-shaped
hoppers.
Hopper
physical
experiments
numerical
simulations
conducted
study
the
influence
critical
attributes
processing
parameters
on
pattern,
arching,
throughput.
results
show
that
(1)
preferred
mass
flow,
can
be
achieved
controlling
material's
internal
friction
angle,
inclination,
wall
friction;
(2)
governed
competing
gravity-driven
force
against
resistance
from
material–wall
friction,
controlled
angle
inclination
angle;
(3)
throughput
accurately
estimated
our
empirical
equation
inputs
outlet
geometry
particle-scale
bulk-scale
attributes.
elucidates
physics
provides
guidance
industrial
equipment
design.
International Journal of Lightweight Materials and Manufacture,
Journal Year:
2022,
Volume and Issue:
5(2), P. 251 - 266
Published: Feb. 20, 2022
Magnesium
and
magnesium
based
alloys
biomaterials
are
considered
the
most
viable
pragmatic
choice
of
selection
as
biomedical
alternatives
for
tissue
repair
damaged
bones,
vascular
other
biological
disorders.
Considering
sensitivity
health
implication
implanting
foreign
matter
into
human
system,
extensive
studies
required
before
clearance
clinical
trials
is
given.
This
often
requires
rigorous
experimental
evaluations
biomechanical
biodegradation
properties
such
biomaterials,
which
expensive,
time
consuming
practically
demanding,
several
validation
protocols.
The
technical
advances
in
computing
power
well
computational
modeling
techniques,
finite
element
analysis,
have
been
sort
to
address
these
limitations,
but
very
little
has
catalogued
reviews
on
basis
their
utilization
sundry
issues.
paper
attempts
fill
this
gap
by
assessing
from
literature,
how
effective
application
analysis
evaluation
behaviour
Mg-based
systems
use
stents,
screws,
staples,
implants
orthopedic
cardiovascular
applications.
review
focuses
factors
geometric
profile
Mg
material
applicable
physical
constitutive
laws,
design
parameters,
boundary
conditions
stipulated,
simulation
outcomes,
agreements
with
data,
influence
potentials
real
life
designs
biomaterial
systems.
Also,
challenges
that
could
affect
effectiveness
directions
future
improvements,
were
covered.
will
be
immense
benefit
researchers,
designers
clinicians.
Powder Technology,
Journal Year:
2023,
Volume and Issue:
427, P. 118707 - 118707
Published: June 8, 2023
Physical
experiments
and
discrete
element
model
(DEM)
simulations
are
conducted
to
evaluate
particle
characteristics
operation
parameter
effects
on
screw
feeding
performance
for
rotary
shear-milled
Douglas
fir.
Three
metrics
used:
mass
flow
rate,
shaft
driving
torque,
specific
energy
consumption.
The
impact
of
size,
size
distribution
(PSD),
rotational
speed
(rpm),
hopper
dimensions
the
investigated.
All
employed
reveal
superior
flowability
2-mm
particles
in
contrast
larger
6-mm
counterpart.
Remarkably,
wider
PSD
results
poorer
than
two
mono-sized
particles,
proving
enhancement
achieved
by
narrower
woody
feedstock.
More
importantly,
DEM
unveil
PSD-induced
degradation
is
attributed
mechanical
interlocking
segregation
effects.
Furthermore,
higher
rpm
causes
rate
at
cost
consumption
due
viscous
dissipation
changes
pattern.
ACS Sustainable Chemistry & Engineering,
Journal Year:
2025,
Volume and Issue:
13(2), P. 731 - 736
Published: Jan. 9, 2025
Magnesium
stearate
(MgSt),
a
common
flow
additive
and
anticaking
agent,
was
applied
to
corn
stover
feedstocks
with
three
particle
sizes.
The
material
handling
properties
of
dry,
15%,
30%
moisture
content
were
measured
Freeman
FT-4
powder
rheometer
mass
hopper
calculations.
While
hydrated
biomass
typically
exhibits
poor
flowability,
introducing
MgSt
led
significant
increase
in
flowability
for
dry
15%
feedstocks,
less
impact
at
content.
Inverse
gas
chromatography
showed
decrease,
up
40%,
the
surface
energy
MgSt-coated
stover.
may
not
be
ideal
biofuel
or
chemical
production,
this
study
highlights
potential
additives
reduce
adhesive
cohesive
forces,
improving
feedstock
handling.
