Optimization of solar farm design for energy efficiency in university campuses using machine learning: A case study
Engineering Applications of Artificial Intelligence,
Год журнала:
2025,
Номер
153, С. 110847 - 110847
Опубликована: Апрель 19, 2025
Язык: Английский
Energy Analysis of a Thermodynamic System Combined Organic Rankine Cycle and Absorption Cooling System for Power and Cooling: Effects of Pressure and Temperature
International Journal of Sustainable and Green Energy,
Год журнала:
2025,
Номер
14(1), С. 42 - 52
Опубликована: Фев. 20, 2025
In
the
current
economic,
energy
and
environmental
context,
implementation
of
technologies
using
renewable
energies
as
a
source
power
electricity
cooling
production
is
very
beneficial
insofar
it
allows
reduction
pollution
cost
fossil
fuels.
Senegal
has
sunshine
potential
well
distributed
across
country
for
irradiation
varying
from
South
to
North
between
1850
KWh/m²/year
2250
kWh/m²/year.
It
one
best
solar
potentials
in
world.
Systems
operating
on
organic
Rankine
cycle
ORC
absorption
system
ACS
are
innovative
sustainable
exploitation
low
enthalpy
sources.
this
present
work,
thermodynamic
analysis
combined
cold
carried
out
numerically
Engineering
Equation
Solver
(EES)
software.
R245fa
water-lithium
bromide
mixture
used
working
fluid
respectively.
The
results
obtained
at
subsystem
level
show
that
COP
decreases
when
temperature
increases.
This
goes
0.83
0.55,
i.e.
0.28
variation
27°C
45°C.
stabilized
generator
temperatures
above
95°C
range
0.7
0.8.
These
fluctuations
due
irreversibility
components
system.
For
subsystem,
turbine
condenser
decrease
condensing
pressure
Thus,
235
kW
200
80
60
kW.
Язык: Английский
Thermodynamic analysis of a cascade organic Rankine cycle power generation system driven by hybrid geothermal energy and liquefied natural gas
Frontiers in Energy Research,
Год журнала:
2024,
Номер
12
Опубликована: Сен. 24, 2024
The
combination
of
renewable
energy
and
liquefied
natural
gas
(LNG)
cold
can
effectively
improve
utilization
efficiency
achieve
the
goal
conservation
emission
reduction,
which
is
one
important
directions
future
development.
This
work
proposed
a
cascade
organic
Rankine
cycle
(ORC)
driven
by
geothermal
heat
source
an
LNG
sink.
Seven
fluids
are
chosen
as
candidates
to
form
different
working
fluid
pairs.
effects
main
design
parameters
on
system
performance
carried
out
through
thermodynamic
analysis.
Then,
optimal
conditions
selection
schemes
searched
based
single-objective
optimization
results.
Finally,
exergy
destruction
study
conducted
under
pair.
Results
showed
that
ORC
using
pair
R601/R290
had
highest
efficiency,
could
reach
20.02%.
At
same
time,
conditions,
secondary
condenser
direct
expansion
brought
high
destruction,
was
respectively
29.3%
25.8%,
followed
two
turbines
in
system,
were
16.1%,
11.2%
7.7%.
Язык: Английский