Energies,
Journal Year:
2020,
Volume and Issue:
13(24), P. 6586 - 6586
Published: Dec. 14, 2020
With
the
development
of
society,
energy
crisis
has
become
increasingly
prominent,
which
greatly
affects
sustainable
economy
various
countries.
Industrial
consumption
accounts
for
more
than
70%
China’s
total
consumption,
50%
is
converted
to
industrial
waste
heat,
and
recyclable
heat
resources
account
about
60%
resources,
while
current
utilization
rate
only
reaches
30%.
The
renewable
recovery
low-grade
in
industry
key
solve
problem.
As
a
type
volumetric
expander
with
full
flow
expansion,
screw
extensively
applied
geothermal
generation
because
its
effective
low
enthalpy
energy.
Improving
performance
as
core,
paper
concludes
summarizes
research
status
leakage,
rotor
geometry,
sealing
lubrication,
processing
manufacturing,
can
affect
expander.
In
addition,
it
also
introduces
application
potential
International Journal of Chemical Reactor Engineering,
Journal Year:
2021,
Volume and Issue:
19(11), P. 1179 - 1186
Published: Aug. 1, 2021
Abstract
Greenhouse
gas
(GHG)
pollution
is
considered
one
of
the
challenging
concerns
in
industrial
plants,
and
to
emit
appropriate
designation
nitrogen
oxide
reduction,
it
required
implement
proper
numerical
simulation
procedures.
In
this
study,
ANSYS
Fluent
®
software
used
as
dynamic
solve
heat
mass
flow
transfer
numerically
by
considering
non-structured
networks
for
complex
geometries.
Dry
burners
have
an
additional
thermocouple
provide
extra
fuel
pathway
combine
with
air.
Then,
standard
K-ε
simulations
calculate
thermal
efficiency
combustion
processes
turbulent
regimes.
It
can
cause
removal
50%
into
atmosphere.
Furthermore,
increase
temperature,
concentration
has
been
increased
system.
After
1975
K,
Fuel
changed
dry
fuel,
therefore
because
steam
a
relatively
non-combustible
compound
than
fuel.
On
other
hand,
regarding
water
volume
at
inlet
steam,
percentage
decreased
dramatically,
especially
first
periods
increase.
Consequently,
when
instead
water,
reduction
increased.
Moreover,
our
results
match
Gibbs
energy
equilibrium.
Energies,
Journal Year:
2021,
Volume and Issue:
14(15), P. 4597 - 4597
Published: July 29, 2021
The
optimal
planning
of
grid-connected
microgrids
(MGs)
has
been
extensively
studied
in
recent
years.
While
most
the
previous
studies
have
used
fixed
or
time-of-use
(TOU)
prices
for
sizing
MGs,
this
work
introduces
real-time
pricing
(RTP)
implementing
a
demand
response
(DR)
program
according
to
national
grid
Iran.
In
addition
long-term
MG,
day-ahead
operation
MG
is
also
analyzed
get
better
understanding
DR
daily
electricity
dispatch.
For
purpose,
four
different
days
corresponding
seasons
are
selected
further
analysis.
addition,
various
impacts
proposed
on
results,
including
and
best
configuration,
net
present
cost
(NPC)
energy
(COE),
emission
generation
by
utility
grid,
investigated.
optimization
results
show
that
implementation
positive
impact
technical,
economic,
environmental
aspects
MG.
NPC
COE
reduced
about
USD
3700
0.0025/kWh,
respectively.
component
size
reduced,
resulting
reduction
initial
cost.
Carbon
emissions
185
kg/year.
Energy,
Journal Year:
2024,
Volume and Issue:
308, P. 132964 - 132964
Published: Aug. 29, 2024
Applying
thermal
energy
storage
in
a
Regenerative
Organic
Rankine
Cycle
system
is
possible
combination
of
for
renewable
and
waste
sources.
This
research
presents
an
experimental
analysis
regenerative
organic
cycle
pilot
plant,
incorporating
chamber
based
on
phase
change
materials
to
obtain
inertia
the
system.
The
primary
heat
source
residual
combustion
gases
at
temperature
approximately
320
°C
coming
from
generating
set
that
operates
within
power
generation
plant.
prototype
uses
twin-screw
expander
modified
work
as
turbine.
Novec
649
was
used
working
fluid
which
compound.
evaluation
with
has
been
carried
out
through
exergetic
efficiency
verify
operation
Values
13.2
%
were
obtained
2.67
global
cycle,
maximum
11.8
kW.
It
demonstrated
provides
response
plant's
operating
17.5
min,
sufficient
time
gradual
shutdown
plant
equipment,
maintaining
cycle.
•
Use
Waste
recovery
Thermal
Energy
Storage
maintenance
inertia.
Phase
Change
Material
54
KNO
3
46
NaNO
applied
chamber.
Design
viability
implementation
TES-RORC
prototype.
exploitation
data.
A
min
experimentally
TES.
Energies,
Journal Year:
2020,
Volume and Issue:
13(23), P. 6453 - 6453
Published: Dec. 6, 2020
Efficient
solar
and
wind
energy
to
electricity
conversion
technologies
are
the
best
alternatives
reduce
use
of
fossil
fuels
evolve
towards
a
green
decarbonized
world.
As
conventional
photovoltaic
systems
only
600–1100
nm
wavelength
range
radiation
spectrum
for
production,
hybrid
taking
advantage
overall
gaining
increasing
interest.
Moreover,
such
can
produce,
in
an
integrated
combined
way,
electricity,
heating,
cooling,
syngas
through
thermochemical
processes.
They
have
thus
huge
potential
residential
applications.
The
present
work
proposes
novel
system
applications
including
turbines
dish
collector
renewables
harvesting,
organic
Rankine
cycle
power
absorption
chiller
cold
methanation
plant
CH4
production
from
captured
CO2.
This
study
deals
with
energy,
exergy,
economic,
exergoenvironmental
analyses
proposed
system,
assess
its
performance,
viability,
environmental
impact
when
operating
Tehran.
Additionally,
it
gives
clear
picture
how
pattern
each
useful
product
depends
on
patterns
collection
available
renewable
energies.
Results
show
that
rate
methane
this
changes
42
up
140
Nm3/month,
due
CO2
consumption
44
144
Nm3/month
during
year.
exergy
efficiencies
vary
24.7%
23%
9.1%
8%,
respectively.
simple
payback
period
is
15.6
21.4
years.
