Case Studies in Thermal Engineering,
Год журнала:
2022,
Номер
30, С. 101760 - 101760
Опубликована: Янв. 5, 2022
We
studied
the
optimization
of
a
linear
parabolic
solar
collector
with
twisted
tape
(strip)
aimed
at
increasing
heat
transfer
in
this
paper.
This
research
contains
three
sections.
The
first
section
focuses
on
geometric
study
various
tapes,
including
strips,
wavy
and
plain
strips
rectangular
cross-section.
In
second
section,
we
examined
best
efficiency
four
heights.
Finally,
assessed
effect
H2O–Ag/MoS2
hybrid
nanofluid
third
section.
To
end,
simulated
governing
equations
flow
using
ANSYS-Fluent
software
by
employing
K−ε
RNG
turbulence
model.
results
revealed
that
use
strip
model
brings
highest
rate
than
other
modes.
Accordingly,
outlet
temperature
for
height
increase
14.33%
0.39%,
respectively
compared
to
lower
Besides,
composite
5%
concentration
40
mm
provides
rate.
Also,
difference
fluid
inlet
increases
4.93%
concentrations.
Journal of Thermal Analysis and Calorimetry,
Год журнала:
2020,
Номер
145(6), С. 2817 - 2872
Опубликована: Июнь 15, 2020
Abstract
The
field
of
nanofluids
has
received
interesting
attention
since
the
concept
dispersing
nanoscaled
particles
into
a
fluid
was
first
introduced
in
later
part
twentieth
century.
This
is
evident
from
increased
number
studies
related
to
published
annually.
increasing
on
primarily
due
their
enhanced
thermophysical
properties
and
ability
be
incorporated
wide
range
thermal
applications
ranging
enhancing
effectiveness
heat
exchangers
used
industries
solar
energy
harvesting
for
renewable
production.
Owing
relating
nanofluids,
there
need
holistic
review
progress
steps
taken
2019
concerning
application
transfer
devices.
takes
retrospective
look
at
year
by
reviewing
made
area
preparation
various
devices
such
as
collectors,
exchangers,
refrigeration
systems,
radiators,
storage
systems
electronic
cooling.
aims
update
readers
recent
while
also
highlighting
challenges
future
next-generation
fluids.
Finally,
conclusion
merits
demerits
presented
along
with
recommendations
that
would
mobilise
rapid
commercialisation
nanofluids.
Energies,
Год журнала:
2022,
Номер
15(3), С. 986 - 986
Опубликована: Янв. 28, 2022
Improvements
in
miniaturization
and
boosting
the
thermal
performance
of
energy
conservation
systems
call
for
innovative
techniques
to
enhance
heat
transfer.
Heat
transfer
enhancement
methods
have
attracted
a
great
deal
attention
industrial
sector
due
their
ability
provide
savings,
encourage
proper
use
sources,
increase
economic
efficiency
systems.
These
are
categorized
into
active,
passive,
compound
techniques.
This
article
reviews
recent
passive
techniques,
since
they
reliable,
cost-effective,
do
not
require
any
extra
power
promote
conversion
systems’
when
compared
active
methods.
In
approaches,
various
components
applied
transfer/working
fluid
flow
path
improve
rate.
The
studied
this
include
inserts
(twisted
tapes,
conical
strips,
baffles,
winglets),
extended
surfaces
(fins),
porous
materials,
coil/helical/spiral
tubes,
rough
(corrugated/ribbed
surfaces),
nanofluids
(mono
hybrid
nanofluids).
