The
use
of
pumps
operating
as
turbines
(PATs)
offers
the
possibility
to
increase
sustainability
water
and
energy
systems,
by
recovering
excess
that
would
be
otherwise
lost
in
system’s
normal
operation.
While
on-grid
applications
there
are
many
research
works
implementations
PATs,
is
still
limited
for
optimization
efficiency
stability
off-grid
systems.
This
work
contributes
development
stable
DC
systems
based
on
optimizing
analysing
different
electric
loads.
To
further
usefulness
this
work,
we
consider
a
self-excited
induction
generator
(SEIG)
coupled
PAT.
In
context,
methodology
proposed,
multiphysics
interaction
between
hydraulic,
mechanical
subsystems,
define
PAT-SEIG
operational
area
maximize
conversion
efficiency,
guarantee
output
quantities
when
system.
addition,
an
analytical
model
proposed
allow
project
system
managers
best
hydraulic
machines,
electronic
equipment,
all
control
elements
conversion,
within
target
limits.
develop
verify
our
methodology,
two
micro
PAT-SEIG-AC/DC
setups
were
implemented
laboratory
under
typical
conditions.
solution
proved
resilient
variable
load
regime.
maximum
can
adapted
using
values
capacitors
range
components
(input
voltage
DC/DC
converter
input
current
SEIG).
Considering
nominal
efficiencies
components,
p.u.
both
0.7
0.8
Sustainability,
Год журнала:
2025,
Номер
17(5), С. 1887 - 1887
Опубликована: Фев. 23, 2025
Achieving
carbon
neutrality
is
a
priority
in
global
environmental
policies,
and
South
Korea
committed
to
its
2050
goal.
This
study
explores
methods
reduce
emissions
urban
water
cycle
(UWC)
systems,
which
are
essential
infrastructures
that
consume
considerable
energy.
Focusing
on
Incheon
Metropolitan
City
(IMC),
the
research
identifies
UWC
components,
estimates
energy
consumption,
calculates
across
eight
administrative
districts.
The
analysis
comprises
four
abstraction
plants
(WAPs),
treatment
(WTPs),
eleven
wastewater
(WWTPs).
Strategies
for
reduction
involve
decreasing
consumption
minimizing
from
treatment.
categorizes
management
targets
as
water,
energy,
carbon,
developing
different
scenarios.
A
emission
calculation
model
WTPs
WWTPs
was
developed
evaluate
Notably,
scenario
focusing
renewable
development
efficiency
improvements
yielded
highest
reductions,
confirming
government’s
initiatives
vital
achieving
net-zero
IMC’s
systems.
Conversely,
prioritizing
use
proved
less
effective,
but
excelled
regarding
investment
costs.
These
findings
can
serve
other
cities
managing
systems
while
striving
sustainability.
Under
non-design
situations,
the
Francis
pump-turbine,
a
frequently
employed
core
energy
conversion
device
in
pumped
storage
power
plants,
plays
significant
role
ensuring
their
stable
operation.
This
article
examines
unstable
flow
inside
pump-turbine
using
gradient
theory
and
numerical
computations
model
experiments.
Research
has
indicated
that
forced
impacts
separation
between
fluids
blades
are
causes
of
deteriorating
mechanical
gradients,
whereas
non-optimal
angles
stay
guide
vanes
can
readily
cause
separation.
The
strong
helical
at
blade
inlet
is
primary
flow,
hub
outlet
locations
for
high
shear
force
work
area
brought
on
by
large-scale
vortex
structures,
middle
portion
impeller
where
field
begins
needs
more
attention.
Advances in computer and electrical engineering book series,
Год журнала:
2025,
Номер
unknown, С. 1 - 32
Опубликована: Янв. 17, 2025
This
comprehensive
review
explores
the
transformative
impact
of
digital
technologies
on
sustainability
and
quality
control
across
diverse
industries.
The
study
aims
to
elucidate
how
such
as
Internet
Things
(IoT),
artificial
intelligence
(AI),
blockchain,
data
analytics,
twins
are
leveraged
optimize
processes
enhance
operational
efficiencies
while
ensuring
adherence
stringent
standards.
Methodology:
A
systematic
analysis
current
literature
empirical
studies
was
conducted
synthesize
key
findings
insights.
covers
a
wide
range
sectors
including
manufacturing,
healthcare,
transportation,
energy,
retail,
finance,
agriculture,
construction,
education,
telecommunications,
Results:
reveals
that
play
pivotal
role
in
revolutionizing
industry
practices
by
improving
supply
chain
transparency,
optimizing
logistics,
enhancing
patient
care,
enabling
smart
energy
management,
fostering
sustainable
agricultural
practices.
Energy Strategy Reviews,
Год журнала:
2024,
Номер
54, С. 101437 - 101437
Опубликована: Июнь 3, 2024
This
paper
delves
into
identifying
the
optimal
scenario
for
implementation
of
micro-turbines,
specifically
Pump-as-Turbines
(PaTs),
in
a
water
distribution
network
(WDN)
by
achieving
highest
consensus
among
involved
stakeholders.
Utilising
simulations-optimisation
model,
best
location,
type,
and
operation
hours
micro-turbines
were
selected
within
case
study
WDN.
The
objective
was
to
maximise
generated
energy,
while
maintaining
standard
hydraulic
conditions
A
total
84
scenarios
developed,
considering
number
installed
turbines,
allocation
pricing
schemes.
explore
possibilities
allocating
electricity
company,
national
grid,
cryptocurrency
mining,
or
electric
car
charging.
Evaluation
involves
36
criteria,
identifies
18
stakeholders
energy
management
study.
Stakeholder
utility
with
respect
criteria
determined
through
interviews,
weights
each
stakeholder
assigned
based
on
previous
studies.
computed
matrix,
ranked
accordingly,
revealing
that
involving
generation
five
turbines
sold
grid
at
twice
current
price
garnered
support.
Sustainable Cities and Society,
Год журнала:
2024,
Номер
104, С. 105283 - 105283
Опубликована: Фев. 21, 2024
Adaptive
planning
of
water
infrastructure
systems
is
crucial
to
bolster
urban
resilience
in
the
face
climate
change
while
meeting
needs
rapidly
changing
metabolisms.
Urban
maintain
intricate
interconnections
with
other
critical
domains
(CIDs).
Multi-sector
dependencies
and
joint
management
different
CIDs
have
gained
interest
recent
research
mitigate
undesired
cascading
effects
across
domains.
Yet,
combined
modeling
simulation
multiple
overcome
limitations
tools
software
often
siloed
individual
In
this
paper,
we
contribute
a
systematic
review
24
peer-reviewed
publications
on
coupled
(water
supply
drainage
networks)
CIDs,
including
energy
grids,
mobility
networks,
IT
systems,
extracted
from
larger
set
222
publications.
First,
identify
trends,
frameworks,
enabling
interlinked
CIDs.
Then,
define
an
agenda
priorities
for
future
research.
Acknowledging
opportunities
provided
by
open-source
tools,
data,
standardized
evaluation
schemes,
fostering
should
prioritize
knowledge
transfer,
address
differences
spatial
temporal
dependencies,
scale
up
simulations
network
level,
explore
multi-sector
beyond
bilateral
dependencies.
Water,
Год журнала:
2024,
Номер
16(13), С. 1835 - 1835
Опубликована: Июнь 27, 2024
Urban
water
management
faces
new
challenges
due
to
the
rise
of
digital
solutions
and
abundant
data,
leading
development
data-centric
tools
for
decision-making
in
global
utilities,
with
AI
technologies
poised
become
a
key
trend
sector.
This
paper
proposes
novel
methodology
optimal
sensor
placement
aimed
at
supporting
creation
twin
infrastructure.
A
significant
innovation
this
study
is
metamodel
estimate
pressure
consumption
nodes
supply
system.
guides
configuration
by
minimizing
difference
between
estimated
observed
pressures.
Our
was
tested
on
synthetic
case
study,
showing
accurate
results.
The
pressures
each
network
node
exhibited
low
error
high
accuracy
across
all
configurations
tested,
highlighting
potential
future
distribution
systems.
Water,
Год журнала:
2023,
Номер
15(23), С. 4123 - 4123
Опубликована: Ноя. 28, 2023
A
pump
as
turbine
(PAT)
can
be
a
cost-effective
and
versatile
solution
to
recover
energy
in
several
fields
of
application.
However,
its
optimal
exploitation
requires
reliable
general
methodology
for
selecting
the
turbomachine.
To
this
purpose,
paper
presents
validates
comprehensive
that
identifies
best
turbomachine
(i.e.,
one
maximizes
recovered
energy)
by
considering
two
hydraulic
sites
forty-five
PATs.
In
both
sites,
correctly
PAT,
which
allows
recovery
up
45%
available
energy.
further
investigate
PAT
potential,
an
additional
layout
installation,
comprises
PATs
installed
parallel,
is
also
considered.
The
operation
optimally
scheduled
maximize
recovery.
As
result,
pair
almost
50%
An
in-depth
analysis
about
operating
range,
causes
wasted
energy,
timeframe
efficiency)
reveals
installation
actually
recommended
just
considered
sites.
Using
pumps
operating
as
turbines
(PATs)
offers
the
possibility
of
increasing
sustainability
water
and
energy
systems
by
recovering
excess
that
would
be
otherwise
lost
in
pressure
reducing
valves
or
head
loss
chambers.
In
on-grid
applications,
there
are
many
research
works
implementations
PATs.
However,
is
still
limited
for
optimization
efficiency
stability
PATs
off-grid
systems.
This
work
contributes
to
development
stable
direct
current
(DC)
electric
based
on
PATs,
optimizing
analysing
a
wide
range
operation.
A
self-excited
induction
generator
(SEIG)
coupled
PAT
provided
cover
conventional
type
ma-chines
typically
hydraulic
pumps.
this
context,
methodology
proposed,
hydraulic,
mechanical
subsystems,
define
PAT-SEIG
operational
area,
maximize
conversion
system
efficiency.
will
guarantee
output
quantities
when
DC
system.
addition,
an
analytical
model
proposed
estimate
operation
under
specific
conditions.
With
this,
managers
suitable
design
optimize
best
machines,
electronic
equipment,
all
different
control
elements
within
target
limits.
To
develop
verify
new
methodology,
two
micro
setups
were
implemented
laboratory
IST/CERIS
typical
The
solution
proved
resilient
variable
load
regime.
system's
maximum
can
adapted
using
capacitor
values
excitation
SEIG,
components.
Considering
nominal
efficiencies
system’s
components,
p.u.
obtained
each
between
0.7
0.8
