Thermoelectric
(TE)
cooling
has
experienced
rapid
advancements
with
the
foundational
understanding
of
TE
materials.
modules,
compact
and
lightweight
devices,
have
become
prevalent
approach
for
implementing
technologies.
Accurately
quantifying
physical
parameters
(Seebeck
coefficient
α,
thermal
conductivity
κ,
resistance
ρ)
is
challenging
due
to
dynamic
temperature
changes
in
operation.
Furthermore,
extracting
lumped
property
crucial
designing
energy
systems
using
modules.
Existing
research
several
limitations,
such
as
lack
comparative
analysis
between
formulae,
reliance
on
potentially
inaccurate
vendor-supplied
data,
disregard
fundamental
assumptions,
absence
empirical
measurements.
This
study
addresses
these
gaps
by
conducting
material
characterization,
comparing
three
existing
formulae
vendor
datasheets,
a
laboratory
test
facility
model
validation
refinement,
outlining
structured
data
extraction
procedure.
The
study's
novelty
lies
multiple
key
contributions:
(1)
detailed
parameter;
(2)
executing
experimental
work
setting
validate
elucidate
its
limitations;
(3)
highlighting
potential
risks;
(4)
clarifying
possible
assumptions
from
both
engineering
perspectives;
(5)
considering
differential
impacts.
comprehensive
current
provides
valuable
insights
into
design
application
modules
various
systems.
Energy Conversion and Management,
Год журнала:
2024,
Номер
308, С. 118404 - 118404
Опубликована: Апрель 10, 2024
Typical
solar
power
tower
(SPT)
systems
employ
molten
salt
as
the
heat
transfer
and
thermal
energy
storage
medium
to
facilitate
stable
output.
However,
these
are
constrained
by
their
limited
operating
temperature,
which
is
insufficient
supply
for
high-temperature
electrolysis.
In
this
paper,
a
small-scale
(2.5
MW)
solar-thermal-assisted
system
with
SPT,
supercritical
CO2
(SCO2)
Brayton
cycle,
solid
oxide
electrolysis/fuel
cells
(SOEC/SOFC)
proposed.
With
via
air,
SOEC
subsystem
can
operate
at
800
℃
reach
high
efficiency
reduce
electric
demand,
replaces
conventional
waste
from
flue
gas
produced
fossil
fuel
combustion.
Such
convert
excess
electricity
into
hydrogen
or
sale
provides
24
h
day.
The
key
factors
determining
performance
investigated,
including
turbine
inlet
parameters,
main
compressor
recompression
fraction
of
SCO2
subsystem,
temperature
current
density
SOEC/SOFC
subsystems.
case
study
shows
that
net
output
13365.4
kWh/d
in
summer
℃,
86.7
%
higher
compared
7157.6
when
600
℃.
To
recoup
investment
costs
20th
year,
must
be
priced
6.5
$/kg.
After
multi-objective
optimization,
optimal
exergy
capital
SPT-SCO2-SOEC
determined
29.6
3.65
M$,
respectively.
For
SOFC
corresponding
figures
56.1
0.23
M$
investment.
This
benefits
generation
production
Journal of Energy Storage,
Год журнала:
2024,
Номер
88, С. 111556 - 111556
Опубликована: Апрель 6, 2024
This
research
paper
presents
an
in-depth
development
and
investigation
of
a
solar-based
energy
system
incorporating
thermal
storage
to
produce
electricity,
heat,
fresh
water,
hydrogen
cover
the
needs
community
for
better
sustainability.
The
proposed
integrated
utilizes
concentrated
solar
plant
generate
process
offering
novel
approach
address
growing
demand
diverse
outputs.
assessment
employs
first
second
laws
thermodynamics,
focusing
on
both
exergy
analyses.
A
dynamic
analysis,
using
real-world
data
where
available,
is
conducted
ensure
alignment
between
supply.
Two
distinctive
case
studies
are
presented
highlight
versatility
system.
In
study
1,
power
focuses
only
electricity
production.
calculations
made
based
assumption
that
6%
total
emitted
by
sun
stored.
work
found
be
316,466.00
kWh.
Additionally,
as
result
24-hour
1
exhibits
outstanding
performance,
reaching
efficiency
31.66%
33.36%,
respectively.
Emphasizing
enhanced
flexibility
help
contribute
tailored
successful
production
strategy.
Case
2
examines
integration
generation
with
heating
cooling
systems,
well
addressing
clean
water.
generation,
load,
load
capacities
obtained
1,299,247.95,
531,588.54,
555,708.16
kW/day,
system's
high-power
output
facilitates
daily
desalination
processes
production,
producing
29,018.10
kg
369,013.52
m3
water
in
single
day.
As
performance
provides
overall
efficiencies
20.68%
16.87%,
holistic
effectively
addresses
society's
line
sustainability
goals.
parametric
provide
valuable
insights
into
resilience
applicability
scenarios,
supporting
ongoing
efforts.
Beyond
reducing
carbon
emissions
improving
air
quality,
long-term
benefits
make
it
promising
solution
achieving
greener
more
resilient
communities,
acknowledging
need
overcome
challenges
its
implementation.
