Renewable Energy,
Год журнала:
2024,
Номер
230, С. 120835 - 120835
Опубликована: Июнь 18, 2024
Ground
Source
Heat
Pumps,
in
the
framework
of
Shallow
Geothermal
Energy
Systems,
outperform
conventional
Heating
Ventilation
and
Air
Conditioning
systems,
even
high
efficiency
Pumps.
At
same
time,
though,
they
require
considerably
higher
installation
costs.
The
utilization
dwellings'
foundations
as
ground
heat
exchanger
components
has
recently
demonstrated
potential
to
generate
significant
cost
reductions
primarily
attributed
reduction
expenses
associated
with
drilling
backfill
material
(grout).
These
elements
are
referred
literature
Thermo-Active
Structures
or
Geo-structures
(EGs).
current
study
employs
a
'mixed
studies'
review
(i.e.,
review,
critical
state-of-the-art
review)
methodology
comprehensively
examine
assess
compatibility
integration
different
renewable
energy
sources
environmentally
friendly
technologies
foundation
deployed
EGs.
mainly
include
pumps,
district
heating
cooling
networks,
solar-thermal
waste
heat,
biomass
other
types
such
urban
structures.
Emphasis
been
given
on
advancement
this
area,
identifying
addressing
two
primary
categories.
first
category
involves
EG
that
able
supply
green
electricity,
referring
electricity
obtained
from
on-grid
off-grid
integration.
second
category,
direct
indirect
provide
vice
versa.
technical
non-technical
barriers
integrations
have
discussed
detail,
challenges
generally
involving
engineering
design,
system
optimization,
whereas
encompassing
economic,
social,
policy
domains.
This
study
examines
the
performance
and
economic
feasibility
of
air-water
heat
pumps
(ASHPs)
across
diverse
European
climate
zones
under
varying
energy
price
scenarios.
Focusing
on
four
regions
(Poland,
Lithuania,
Croatia,
Spain),
analysis
evaluates
Seasonal
Coefficient
Performance
(SCOP)
Net
Present
Value
(NPV)
during
cold
warm
years.
Results
indicate
that
SCOP
is
highly
sensitive
to
climatic
variability,
with
efficiency
decreasing
by
40–50%
in
colder
years,
while
remaining
stable
warmer
climates
such
as
Spain.
Economic
reveals
high
electricity
scenario
(S1),
only
Spain
achieved
positive
NPVs
both
periods,
smaller
(8
kW)
being
most
cost-effective.
Conversely,
gas
(S2),
all
demonstrated
NPVs,
particularly
for
larger
units
(13
These
findings
emphasize
importance
adapting
pump
sizing
local
conditions
implementing
policies
balance
prices.
Future
studies
should
aim
develop
more
comprehensive
approaches
capture
interplay
between
variability
feasibility.
Energies,
Год журнала:
2025,
Номер
18(5), С. 1159 - 1159
Опубликована: Фев. 27, 2025
Promoting
complete
decarbonization
by
entrusting
the
energy
supply
through
renewable
sources
(wind,
photovoltaic,
solar
thermal,
etc.)
is
one
of
key
strategies
in
building
sector.
However,
energy’s
intermittent
and
space–time
mismatch
characteristics
pose
challenges
to
its
compatibility
with
power
grid.
Challenges
can
be
mitigated
introducing
thermal
electrical
storage
increase
self-consumption
buildings.
This
work
proposes
a
comparison
between
different
systems
equipped
heat
pump,
plant
(photovoltaic
or
photovoltaic
thermal),
storage.
All
year-round
performances
system
configurations
have
been
simulated
using
TRNSYS
17.2
software.
The
analyses
revealed
that
plant,
when
incorporating
two
storages,
improves
(Rsc)
from
34.1%
69.4
self-sufficiency
(Dss)
27.9%
59.9%,
respectively.
Additionally,
collectors
both
storages
further
improve
performance;
an
Rsc
96.2%
Dss
86.9%
are
attained.
These
results
demonstrate
previous
configuration
facilitate
near
attainment
net-zero
Furthermore,
proposed
characterized
minimal
imbalance
building’s
demand
produced,
thereby
reducing
need
for
exchange
Energy Exploration & Exploitation,
Год журнала:
2025,
Номер
unknown
Опубликована: Апрель 29, 2025
Heating
and
cooling
account
for
a
significant
share
of
energy
consumption,
particularly
in
the
European
Union,
where
they
almost
half
total
consumption.
The
demand
heating
is
mainly
driven
by
space,
process,
water
heating,
with
growing
space
cooling.
Fossil
fuel
technologies
currently
dominate
buildings,
renewable
sources
contributing
only
24.8%
consumption
2022
(Energy
2024).
In
order
to
reduce
greenhouse
gas
emissions
increase
energy,
development
implementation
buildings
crucial.
An
interesting
promising
approach
use
their
hybrid
systems.
These
can
often
combine
advantages
different
while
mitigating
disadvantages.
Hybrid
systems
efficiency,
environmental
impact,
improve
system
reliability
integrating
multiple
sources.
Combining
such
as
solar,
biomass,
heat
pumps
has
great
potential
optimize
use,
stabilize
thermal
output,
primary
This
article
reviews
previous
work
on
integration
residential
buildings.
Both
stand-alone
grid-connected
systems,
incorporating
various
storage
are
reviewed.
also
discusses
control
requirements
how
advanced
intelligent
approaches
help
performance
Furthermore,
it
challenges
implementation,
high
initial
costs
complexities.
novelty
this
lies
its
comprehensive
assessment
configurations,
requirements,
role
smart
optimizing
operation.
findings
provide
valuable
insights
researchers,
policymakers,
industry
stakeholders,
guiding
future
developments
sustainable
solutions
transition
strategies.
Energies,
Год журнала:
2025,
Номер
18(9), С. 2325 - 2325
Опубликована: Май 2, 2025
The
use
of
renewables
in
heat
production
requires
methods
to
overcome
the
issue
asynchronous
load
and
energy
production.
most
effective
method
for
analyzing
intricate
thermal
dynamics
an
existing
building
is
through
transient
simulation,
utilizing
real-world
weather
data.
This
approach
offers
a
far
more
nuanced
understanding
than
static
calculations,
which
often
fail
capture
dynamic
interplay
environmental
factors
performance.
Transient
simulations,
by
their
nature,
model
building’s
behavior
over
time,
reflecting
continuous
fluctuations
temperature,
solar
radiation,
wind
speed.
Leveraging
actual
meteorological
data
enables
simulation
faithfully
system
under
realistic
operational
scenarios.
crucial
evaluating
effectiveness
heating,
ventilation,
air
conditioning
(HVAC)
systems,
identifying
potential
inefficiencies,
assessing
impact
various
energy-saving
measures.
can
reveal
how
mass
absorbs
releases
heat,
gains
influence
indoor
temperatures,
ventilation
patterns
affect
losses.
In
this
paper,
household
heating
consisting
source
pump,
PV,
buffer
tank
simulated
analyzed.
3D
accurately
represents
geometry
properties.
virtual
representation
serves
as
basis
calculating
losses
gains,
considering
such
insulation
levels,
window
characteristics,
orientation.
based
on
calculation
EN
ISO
52016-1
standard.
modeled
temperature
sun
irradiance.
EBSILON
professional
16.00
software
10
min
time
step
during
season.
results
prove
that
with
right
control
efficiently
increase
auto
consumption
self-produced
PV
electric
energy,
leading
reduction
effects
higher
economic
profitability.
