Journal of Manufacturing and Materials Processing,
Journal Year:
2024,
Volume and Issue:
8(5), P. 208 - 208
Published: Sept. 24, 2024
Heat
storage
is
an
emerging
field
of
research,
and,
therefore,
new
materials
with
enhanced
properties
are
being
developed.
Examples
phase
change
that
provide
high
heat
inorganic
salts
and
salt
mixtures.
They
commonly
used
for
industrial
applications
due
to
their
operational
temperature
latent
heat.
These
parameters
can
be
modified
by
combining
different
types
salts.
This
paper
presents
the
experimental
study
impact
composition
binary
on
thermophysical
properties.
Unlike
literature
data,
this
article
provides
a
detailed
analysis
process
in
both
directions:
solid–liquid
liquid–solid.
The
results
indicate
highest
was
observed
70%
NaNO3
content
NaNO3–KNO3
mixture.
Therefore,
when
storage,
most
favorable
choice
70:30
ratio,
which
density
lowest
transition
temperature.
In
case
NaNO3–NaNO2
mixture,
value
occurs
ratio
80:20,
resulting
temperatures
267.0
°C
transition,
253.5
liquid–solid
transition.
For
applications,
it
recommended
use
pure
NaNO2
instead
Wood Science and Technology,
Journal Year:
2024,
Volume and Issue:
58(3), P. 859 - 886
Published: May 1, 2024
Abstract
The
product
of
thermochemical
processing
lignocellulosic
biomass
is
biochar.
It
has
a
range
properties
that
make
it
suitable
for
variety
economic
applications.
However,
during
pyrolysis
and
torrefaction,
volatile
organic
compounds
(VOCs)
are
released
may
redeposit
on
the
surface
Some
these
be
harmful
to
environment
humans.
Bibliometric
study
shows
that,
date,
studies
release
VOCs
from
biochar
have
been
an
inventory
nature
concerned
with
specific
case
types
biomass.
To
there
no
comprehensive
systematic
analysis
influence
pyrolysis/torrefaction
process
parameters
VOC
formation
redeposition
In
this
paper,
presented
potential
harmfulness
components,
based
cellulose,
hemicellulose,
lignin
chemistry
data.
10
were
identified
as
potentially
due
following
properties:
carcinogenicity,
toxicity,
flammability,
skin
corrosion/irritation,
eye
irritation,
mutagenicity,
different
degrees
harmfulness.
Additionally,
samples
show
hazard.
Among
140
compounds,
33
them
had
properties.
Therefore,
ketones,
aldehydes,
cyclic
aromatic
hydrocarbons
including
polyaromatic
hydrocarbons,
their
derivatives,
esters,
furans
lead
environmental
contamination
A
new
niche
research
development
knowledge
regarding
biochars
produced
source
pollutant
emission
identified.
