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
Heliyon,
Journal Year:
2023,
Volume and Issue:
9(5), P. e16096 - e16096
Published: May 1, 2023
Over
the
past
few
years,
there
has
been
growing
interest
in
using
inorganic
quaternary
nitrate-based
molten
salt
mixtures
as
a
highly
effective
heat
transfer
fluid
(HTF)
for
concentrated
power
plants,
primarily
because
they
can
achieve
low
melting
temperatures.
However,
high
viscosity
of
these
is
still
significant
challenge
that
hinders
their
widespread
adoption.
The
leads
to
pumping
requirements,
which
increases
operational
costs,
and
reduces
efficiency
Rankine
cycle.
To
address
this
challenge,
study
developed
characterized
novel
salt,
focusing
on
effect
LiNO3
additions
salt's
viscosity,
thermal
conductivity,
point
temperature,
capacity,
stability.
mixture
comprised
KNO3,
LiNO3,
Ca(NO3)2,
NaNO2,
with
varying
percentages
each
salt.
utilized
various
standard
techniques
examine
characteristics
mixture.
Results
showed
increasing
content
led
decrease
higher
improved
stability,
reduced
at
solidification
temperature.
lowest
endothermic
peak
new
emerged
73.5
°C,
significantly
lower
than
commercial
Hitec
XL,
indicating
better
potential
use
solar
plant
applications.
Furthermore,
stability
results
up
590
°C
all
samples
examined.
Overall,
shows
promise
replacement
current
organic
synthetic
oil,
offering
more
efficient
solution.
IOP Conference Series Earth and Environmental Science,
Journal Year:
2024,
Volume and Issue:
1372(1), P. 012012 - 012012
Published: July 1, 2024
Abstract
Thermal
energy
storage
technologies
have
been
widely
used
to
mitigate
intermittency
from
renewable
such
as
solar
energy.
Phase
change
material
(PCM)
is
a
certain
that
can
be
heat
medium
and
available
in
wide
range
of
operating
temperatures.
Molten
salt
one
the
PCMs
has
advantage
very
high
temperature.
The
PCM
solidification
simulation
based
on
HitecXL
molten
using
COMSOL
Multiphysics
software
will
carried
out
with
variations
absorption
1
-
5
kW/m
2
,
assuming
constant
absorption.
results
show
process
starts
surface
Stirling
engine
exchanger
pipe.
part
solidified
fall
following
direction
gravity
cause
phenomenon
droplet.
flow
occurs
natural
caused
by
buoyancy
force
due
changes
density
temperature
gradients
process.
time
required
for
completely
solidify
closely
related
amount
greater
pipe,
faster
fully
solidified.
