Energy Science & Engineering,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 28, 2025
ABSTRACT
Renewable
energy
sources
are
extensively
studied
due
to
their
clean
and
sustainable
nature.
Human
needs
can
be
classified
into
four
categories:
heating,
cooling,
electricity,
transportation.
Heating
electricity
have
garnered
more
research
attention
because
of
larger
share
the
variety
technologies
used.
To
address
supply
issues,
societies
considered
solar
energy,
but
its
reliance
on
various
factors,
especially
climate,
means
it
doesn't
always
meet
in
some
regions.
This
study
proposes
integrating
thermal
photovoltaic
(PV/T),
ground
source
heat
pump
(GSHP)
systems,
controlled
dynamically
adjust
renewable
supplied.
The
system
is
tested
a
residential
apartment
across
different
climatic
cities
Iran
assess
individual
collective
climate
impacts.
Results
indicate
that
ST
contributes
100%
hot
humid
climates,
59.2%
dry,
30.1%
temperate
humid,
32%
cold
climates.
Meanwhile,
PV
2057,
2986,
3441,
4188
kWh/year
for
heating
demand,
respectively.
In
Chabahar,
with
alone
meets
needs.
However,
Yazd,
dry
about
85%
comes
from
geothermal
pump,
resulting
economic
efficiency
$4965.1
CO2
reduction
by
10.4
million
tons
annually.
recommends
further
financial
assumptions,
life
cycle
environmental
impact
assessments,
technology
integrations,
consumer
bases
fully
understand
Energy Conversion and Management,
Год журнала:
2023,
Номер
284, С. 116968 - 116968
Опубликована: Март 30, 2023
This
paper
presents
a
comprehensive
analysis
of
the
energetic,
economic
and
environmental
performance
micro-combined
heat
power
(CHP)
system
that
comprises
29.5
m2
hybrid
photovoltaic-thermal
(PVT)
collectors,
1-kWe
Stirling
engine
(SE)
energy
storage.
First,
model
for
solar
micro-CHP
system,
which
includes
validated
transient
SE
unit,
is
developed.
Parametric
analyses
are
performed
throughout
year
to
evaluate
effects
key
component
sizes
operating
parameters,
including
collector
flow
rate,
storage
tank
size,
battery
capacity,
on
proposed
using
real
hourly
weather
data,
thermal
electrical
demand
profiles
detached
house
located
in
London
(UK).
The
optimum
parameters
determined
accordingly.
daily
monthly
characteristics
evaluated,
its
annual
compared
those
reference
(gas
boiler
plus
grid
electricity),
as
well
other
alternative
solar-CHP
systems
PVT-assisted
pump
standalone
PVT
system.
results
indicate
installation
such
can
achieve
an
electricity
self-sufficiency
87%
coverage
99%,
along
with
primary
savings
carbon
emission
reduction
rate
35%
37%
relative
Over
30
years
operation,
net
present
value
(NPV)
£1990
discounted
payback
period
28
years.
economics
very
sensitive
utility
prices,
especially
purchase
price.
Relative
systems,
offers
greater
benefits
but
has
longer
period.
implies
although
saving
potential
significant,
initial/capital
investment,
CHP
unit
array,
currently
high,
so
efforts
should
focus
cost
these
technologies.
Solar Energy,
Год журнала:
2024,
Номер
272, С. 112493 - 112493
Опубликована: Апрель 1, 2024
Photovoltaic
(PV)
module
soiling,
i.e.,
the
accumulation
of
dust
on
PV
surfaces,
poses
several
challenges
to
system
performance.
Among
these
challenges,
nonuniform
deposition
soiling
across
surface
has
received
scarce
attention.
Soiling
is
directly
associated
with
an
overall
performance
loss,
but
can
also
potentially
give
rise
localised
hotspots
that
lead
long-term
failure.
Therefore,
addressing
issues
arising
from
this
nonuniformity
not
only
important
for
optimising
energy
production,
enhancing
reliability,
and
ensuring
operation
relevant
power
generation
systems.
In
study,
impact
investigated
experimentally
by
examining
soil
upper
surfaces
low-iron
glass
samples.
Samples
positioned
at
four
different
tilt
angles
were
collected
a
monthly
basis
over
one-year
study
period.
Since
horizontal
samples
found
represent
worst-case
conditions,
most
soiled
sample
was
divided
into
zones,
each
housing
single
monocrystalline
solar
cell
examined
further.
The
findings
reveal
experiences
average
transmittance
deterioration
13%
relative
clean
sample,
maximum
(relative)
spatial
variation
4%
between
zones.
These
optical
losses
affect
amount
sunlight
cells,
resulting
in
∼6–7%
per
5%
drop
transmittance.
experienced
temperature
2
°C,
output
(and
efficiency)
reduction
30%
7%
loss
measured
case
more
than
double
which
would
be
expected
theoretically
uniform
so
results
highlight
importance
optimal
performance,
accounting
nonuniformity.
Energy,
Год журнала:
2024,
Номер
301, С. 131531 - 131531
Опубликована: Май 11, 2024
Residential
buildings
account
for
84%
of
Italy's
built
environment,
playing
a
pivotal
role
in
the
EU's
aim
to
cut
GHG
emissions
by
55%
through
enhanced
energy
efficiency
and
climate
adaptation.
This
necessitates
comprehensive
retrofit
initiatives,
especially
sectors
like
social
housing,
which
has
been
relatively
overlooked
terms
strategies.
study
focuses
on
multi-story
building
from
1980s
Rome,
implementing
an
innovative
system
proposed
RESHeat
European
project.
system,
aimed
at
standardizing
retrofits
late
20th-century
leverages
underexplored
potential
water-source
heat
pump
(WSHP)
systems.
The
novelty
this
research
extends
its
examination
multi-family
sector
that
seen
less
attention
compared
public
spaces
smaller
residential
buildings.
Through
experimental
validation
annual
dynamic
simulations
using
TRNSYS
Simulink,
compares
existing
heating
with
upgrade
includes
WSHP
Photovoltaic-Thermal
(PVT)
panels.
demonstrated
significant
improvement,
achieving
COP
6.1
36%
Primary
Energy
Savings
(PES)
PVT
panels,
showcasing
effectiveness
these
technologies
enhancing
profile
RSC Advances,
Год журнала:
2025,
Номер
15(8), С. 5751 - 5765
Опубликована: Янв. 1, 2025
Desalination
by
photovoltaic
thermal
(PVT)-driven
forward
osmosis
(FO)
and
membrane
distillation
(MD)
stands
out
for
its
lower
operational
costs
reduced
carbon
emissions.
However,
the
feasibility
of
a
pilot-scale
PVT-driven
FO-MD
system
remains
unexplored,
which
is
crucial
industrialization.
This
study
introduces
pilot
PVT-FO-MD
desalination
designed
simultaneous
water
electricity
production.
The
aims
to
assess
process,
evaluate
costs,
explore
potential
industrial
applications.
While
PVT
collectors
have
higher
than
standard
PV
panels,
they
offer
improved
electrical
efficiency
additional
power
generation,
making
them
more
efficient
overall.
optimal
design
was
tested
using
saline
with
concentration
10
000
mg
per
liter
NaCl
draw
solute
1
molarity.
produces
172.1
kW
h
energy,
93.9
269
L
daily.
FO
flux
varies
between
8.13
8.29
LMH,
while
MD
fluctuates
2.72
4.25
LMH
throughout
year.
Using
average
yearly
weather
data,
33
872
65
846
106.84
m3
annually.
Increasing
unit
size
boosts
production
126.47
project
requires
an
initial
capital
investment
212
741.38
USD.
return
on
11.84%,
breakeven
point
at
nine
years.
net
present
value
turns
positive
just
before
end
project's
lifetime
10%
interest
rate.
Although
this
type
has
not
yet
been
commercialized,
further
studies
are
recommended
enhance
market
competitiveness.
