Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
For
an
enhancement
of
the
thermal
and
electrical
conductivity
proton
exchange
membrane
fuel
cell
(PEMFC),
extensive
research
is
actively
conducted
on
various
waste
bio
sources.
PEMFC
offers
cleanest
form
energy,
electrochemical
energy
conversion
device
that
possesses
zero
emissions
with
by-products
such
as
heat
water.
In
PEMFC,
conventional
coolants
water
water:ethylene
glycol
mixture
does
not
attain
substantial
results
in
terms
dissipation,
which
impacts
performance
gradually
reduces
operating
life
cell.
Usually,
bio-sources
are
environmentally
friendly
have
merits
over
chemically
prepared
methods.
Bio-based
nanofluids
remarkable
transfer,
lower
conductivity,
low
corrosiveness
system
compared
to
other
metal-based
fluids
base
fluids,
also
gained
a
great
deal
scrutiny
past
few
decades.
this
research,
bio-sourced
Cocos
nucifera
shell
(CNS)
utilised
at
concentrations,
0.1
vol.-%,
0.3
vol.-%
0.5
dispersed
fluid
(W),
ethylene
(EG)
(80:20)
analysed
prior
actual
full
stack
PEMFC.
Consequently,
transfer
has
been
improved
by
13%
for
CNS
80:20
(W:EG)
0.5%
volume
concentration
W:EG
(80:20).
On
basis
findings
thermal,
hydraulic
properties
determined.
Despite
drawbacks
experimental
design,
it
was
concluded
up
nanofluid
could
be
used
cooling
medium
PEMFCs
no
adverse
effects
performance.
It
observed
efficiency
cells
reducing
ohmic
losses.
Direct
thermal
energy
storage
(TES)
using
Phase
Change
Materials
(PCMs)
is
a
promising
approach
to
enhance
the
reliability
of
systems,
ensuring
sustained
heat
supply
even
during
periods
low
or
intermittent
solar
radiation.
This
experimental
study
focuses
on
system
consisting
double-cylindrical
shell
container
with
two
distinct
PCM
types:
petroleum
jelly
petrolatum
1%
Al2O3
particles
by
volume
inside
outer
and
wax
inner
shell.
A
redesigned
exchanger
employed
improve
heating
efficiency.
The
considers
configurations:
an
open
closed
water
tank.
augmentation
deliberate
strategy
aimed
at
enhancing
transfer
both
charging
discharging
phases.
compared
performance
configurations,
highlighting
temperature
profiles
processes.
incorporation
nanoparticles
(NPs)
in
PCMs
led
notable
enhancement
efficiency,
two-phase
materials
case
achieving
highest
efficiency
73%.
Furthermore,
utilization
resulted
improvement
approximately
5%.
Proceedings of the Institution of Mechanical Engineers Part E Journal of Process Mechanical Engineering,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Sept. 9, 2024
For
an
enhancement
of
the
thermal
and
electrical
conductivity
proton
exchange
membrane
fuel
cell
(PEMFC),
extensive
research
is
actively
conducted
on
various
waste
bio
sources.
PEMFC
offers
cleanest
form
energy,
electrochemical
energy
conversion
device
that
possesses
zero
emissions
with
by-products
such
as
heat
water.
In
PEMFC,
conventional
coolants
water
water:ethylene
glycol
mixture
does
not
attain
substantial
results
in
terms
dissipation,
which
impacts
performance
gradually
reduces
operating
life
cell.
Usually,
bio-sources
are
environmentally
friendly
have
merits
over
chemically
prepared
methods.
Bio-based
nanofluids
remarkable
transfer,
lower
conductivity,
low
corrosiveness
system
compared
to
other
metal-based
fluids
base
fluids,
also
gained
a
great
deal
scrutiny
past
few
decades.
this
research,
bio-sourced
Cocos
nucifera
shell
(CNS)
utilised
at
concentrations,
0.1
vol.-%,
0.3
vol.-%
0.5
dispersed
fluid
(W),
ethylene
(EG)
(80:20)
analysed
prior
actual
full
stack
PEMFC.
Consequently,
transfer
has
been
improved
by
13%
for
CNS
80:20
(W:EG)
0.5%
volume
concentration
W:EG
(80:20).
On
basis
findings
thermal,
hydraulic
properties
determined.
Despite
drawbacks
experimental
design,
it
was
concluded
up
nanofluid
could
be
used
cooling
medium
PEMFCs
no
adverse
effects
performance.
It
observed
efficiency
cells
reducing
ohmic
losses.
