Thermal analysis of medium-depth borehole heat exchanger coupled layered stratum thermal conductivity
Renewable Energy,
Год журнала:
2025,
Номер
unknown, С. 122880 - 122880
Опубликована: Март 1, 2025
Язык: Английский
Coaxial Pipes Used as Ground Buried Heat Exchangers—A Review of Research in Recent Years
Buildings,
Год журнала:
2025,
Номер
15(2), С. 243 - 243
Опубликована: Янв. 15, 2025
The
efficient
utilization
of
geothermal
energy
depends
heavily
on
high-performance
ground
heat
exchangers.
Coaxial
pipe
is
a
high-efficiency
exchanger
composed
two
nested
tubes
different
diameters.
In
this
paper,
the
structure
and
thermal
exchange
characteristics
coaxial
exchangers
are
introduced,
which
superior
to
single-U
double-U
in
respect
installation,
transporting,
deep
application.
Thermal
test
research
investigated.
Relevant
studies
recent
years
factors
affecting
performance
exchangers,
including
configurations,
circulating
fluids,
subsurface
conditions,
flow
patterns,
operational
modes,
reviewed.
addition,
impact
ground,
as
well
applications
for
summarized.
Recommendations
made
potential
future
It
believed
that
results
these
will
help
raise
awareness
continue
promote
their
Язык: Английский
Enhanced Heat Extraction for Coaxial Medium-Deep Borehole Heat Exchangers by Adding Triangular Fins on the Outer Tube Wall
Renewable Energy,
Год журнала:
2025,
Номер
unknown, С. 122448 - 122448
Опубликована: Янв. 1, 2025
Язык: Английский
Geologic and thermal conductivity analysis based on geophysical test and combined modeling
Energy,
Год журнала:
2024,
Номер
310, С. 133235 - 133235
Опубликована: Сен. 20, 2024
Язык: Английский
Analytical-experimental based inversion algorithm of stratum thermal properties for medium-depth coaxial borehole
Renewable Energy,
Год журнала:
2024,
Номер
unknown, С. 122255 - 122255
Опубликована: Дек. 1, 2024
Язык: Английский
Thermal performance analysis of the novel medium-depth borehole heat exchanger (MDBHE) coupled photovoltaic photothermal (PV/T) heat pump domestic hot water supply system
Energy Sources Part A Recovery Utilization and Environmental Effects,
Год журнала:
2024,
Номер
46(1), С. 15841 - 15864
Опубликована: Ноя. 8, 2024
As
global
energy
demand
continues
to
rise
and
traditional
sources
increasingly
fail
meet
sustainability
targets,
conventional
domestic
hot
water
systems
that
rely
exclusively
on
either
geothermal
or
solar
face
inefficiencies
seasonal
limitations.
To
tackle
these
issues,
this
study
introduces
an
innovative
supply
system
combining
MDBHE
with
a
PV/T
heat
pump
investigates
its
thermal
performance.
This
utilizes
elevate
the
temperature
of
extracted
from
MDBHE,
while
supplying
power
through
photovoltaic
electricity.
The
results
indicate
increasing
circulating
flow
rate
improves
extraction
capacity
MDBHE.
However,
also
leads
higher
resistance
increased
requirement
for
pump.
Additionally,
at
32
m3/h,
fails
extract
when
inlet
exceeds
34.5°C.
Furthermore,
module
area
2000
m2,
radiation
intensity
600
W/m2,
depth
m,
can
attain
maximum
50.9°C,
contributing
63%.
Moreover,
coefficient
performance
(COP)
reach
5.8,
outperforming
systems.
Язык: Английский