Case Studies in Thermal Engineering,
Journal Year:
2024,
Volume and Issue:
61, P. 104881 - 104881
Published: July 22, 2024
This
study
analyzes
the
potential
for
energy
saving
through
integration
of
a
photovoltaic-thermal
(PVT)
system
with
heat
pump
(HP)
in
community
small-scale
thermal
network.
An
empirical
was
conducted
to
analyze
and
compare
performance
HP
network
hub
storage
that
utilizes
surplus
produced
by
PVT
installed
residential
house
from
other
buildings
an
existing
electric
hot
water
boiler.
The
analysis
proposed
revealed
consumption
could
be
reduced
more
than
70
%
compared
system.
exhibited
COP
ranging
between
4.2
4.7.
Throughout
experiment,
integrated
collected
average
23.77
kWh
daily
units.
annual
domestic
load
coverage
found
50.4
%.
These
results
indicate
systems
combined
networks
HPs
can
effectively
reduce
individual
enhance
efficiency
within
communities.
Energy,
Journal Year:
2024,
Volume and Issue:
305, P. 132189 - 132189
Published: June 25, 2024
District
heating
(DH)
systems
have
been
identified
as
an
important
component
in
efforts
to
mitigate
greenhouse
gas
emissions
and
achieve
climate
targets
the
near
future.
Software
tools
for
analyzing
these
use
different
modeling
approaches,
making
it
challenging
practitioners
choose
most
suitable
tool
based
on
specific
case
requirements.
This
paper
systematically
reviews
available
DH
network
simulation
tools,
comparing
their
application
scope,
functional
capabilities.
An
online
survey
was
conducted
among
developers
experts
assess
technical
evaluation
criteria
tools.
First,
basic
concepts
principles
of
networks
are
discussed.
Moreover,
provides
overview
mathematical
models,
discusses
various
numerical
methods
used
analysis,
while
highlighting
potential
areas
further
research
development.
The
aim
this
is
support
academic
industrial
users
selecting
appropriate
libraries.
Thermal Science and Engineering Progress,
Journal Year:
2024,
Volume and Issue:
53, P. 102722 - 102722
Published: July 4, 2024
District
heating
is
one
of
the
main
strategies
for
providing
heat
supply
buildings
in
cold
climate
countries.
However,
large
parts
current
prefabricated
pipes
these
networks
are
reaching
end
their
technical
service
life.
Replacing
a
time-consuming
procedure
and
requires
huge
investments.
Predictive
Maintenance
(PdM)
promising
strategy
to
deal
with
situations
optimize
prioritize
maintenance
activities.
This
paper
surveys
different
PdM
approaches
considering
difficulties
implementing
PdMs
district
(DHNs)
compared
other
energy
sectors.
It
demonstrates
that
methodology
unique
each
DHN
according
distinctive
characteristics,
environmental
factors,
resource
type,
available
data,
equipment,
factors.
To
best
authors'
knowledge,
this
presents
first
comprehensive
review
focused
on
various
aspects
developed
DHNs,
including
data
analytics,
prediction
models,
integrated
technologies
facilitate
implementation
DHNs.
A
thorough
discussion
state-of-the-art
real-world
challenges
presented,
potential
research
avenues
provided.
This
study
analyzes
the
potential
for
energy
saving
through
integration
of
a
photovoltaic
and
thermal
system
with
heat
pump
in
community
setup
small-scale
network.
An
empirical
was
conducted
consisting
office
buildings
residential
houses
to
analyze
compare
performance
network
hub
storage
that
utilizes
surplus
produced
by
photovoltaic-thermal
installed
house
from
other
conventional
electric
hot
water
boiler.
The
energy-saving
proposed
compared
existing
boiler
analyzed,
it
found
electricity
consumption
could
be
reduced
more
than
70%
per
day
system.
One
can
also
annual
DHW
load
coverage
PVT
50.4%.
results
this
suggest
systems
combined
networks
pumps
effective
reducing
consumption,
not
only
individual
but
as
way
increase
efficiency
within
communities.
Energy,
Journal Year:
2024,
Volume and Issue:
304, P. 131842 - 131842
Published: June 13, 2024
Finding
new
alternatives
is
a
need
to
develop
disruptive
solutions
that
could
be
applied
the
decarbonized,
sustainable,
circular
systemic
change
for
energy
system
transition.
In
this
case,
complete
approach,
sodium
as
resource,
described.
Traditionally,
has
been
considered
risky
element
even
if
it
were
proposed
coolant
in
many
applications,
nuclear
or
solar
thermal
plants.
Such
applications
have
concerned
by
explosive
reaction
of
alkali
Na
with
water.
We
analysed
alternative
profiting
such
highly
exothermic
an
use.
Previously,
we
experimentally
tested
utilization
propellant,
reported
Guerrero
et
al.
(2019),
what
produced
correlation
between
release
and
consumption
excess
are
now
developing
boiler
fuelled
Based
on
these
previous
ongoing
activities,
paper
shows
proposal
process
analysis
sodium–water
heating
cooling
networks,as
one
sectors
decarbonized
system.
A
tentative
configuration
design
heater,
heat
exchangers
adapt
heated
water
temperatures
will
presented.
present
conceptual
13.5
MW
district
plant
ΔT=10°C
from
60
70
°C,
consuming
1
kg/s
Sodium,
reaching
efficiency
95%,
comparable
existing
boilers.
Buildings,
Journal Year:
2024,
Volume and Issue:
14(8), P. 2442 - 2442
Published: Aug. 7, 2024
There
is
an
increasingly
rich
literature
on
the
decarbonisation
of
heat
and
evolution
networks.
This
paper
investigates
whether
a
novel
fifth
Generation
District
Heating
Cooling
Network
(5GDHC)
could
be
retrofitted
to
existing
National
Health
Service
(NHS)
hospital
campus
for
purpose
heating
cooling.
The
building
load
was
simulated
input
into
custom-written
script
carry
out
series
parametric
studies
optimise
design
options.
model
calibrated
against
site
data
available
from
facilities
management.
research
found
that
it
feasible
use
5GDHC
consisting
large
single
mass
water
utilise
inter-seasonal
thermal
storage.
A
natural
resource
such
as
aquifer
not
required.
tested
sizing
options
larger
storage,
pumps
chillers
reduce
operating
costs
improve
flexibility.
closes
with
discussion
practical
factors
in
retrofitting
networks
densely
occupied
highly
constrained
environment.
findings
are
further
describing
circumstances
which
suitable.
