Наукові нотатки,
Journal Year:
2024,
Volume and Issue:
78, P. 63 - 72
Published: Dec. 20, 2024
ефективності
використання
енергетичного
обладнання.
При
цьому,
саме
насосне
обладнання
є
одним
з
основних
споживачів
електроенергії
у
світі.
Середній
показник
споживання
насосним
обладнанням
за
галузями
економіки
становить
близько
20%,
тому
числі
до
50%
в
окремих
галузях
господарства.
Таким
чином,
зниження
енергоспоживання
насосного
шляхом
підвищення
його
енергоефективності
важливих
питань
щодо
досягнення
Цілей
сталого
розвитку
ООН
(зокрема,
ЦСР
6
“Чиста
вода
та
належні
санітарні
умови”,
7
“Доступна
чиста
енергія”,
9
“Промисловість,
інновації
інфраструктура”)
Основними
перевагами
вільновихрових
насосів
їх
простота
конструкції,
підвищений
ресурс
служби
менша
ймовірність
забруднення
порівнянні
відцентровими
аналогами.
Однак,
цього
типу
пов'язане
із
трансопртування
рідин
різними
типами
включень.
Це
може
призводити
негативних
наслідків
вигляді
засмічення
прохідних
каналів,
продуктивності,
енергетичної
насосів.
Стаття
присвячена
розробці
дієвого
механізму
запобігання
даного
типу,
що
дозволить
суттєво
підвищити
енергоефективність
Physics of Fluids,
Journal Year:
2024,
Volume and Issue:
36(8)
Published: Aug. 1, 2024
To
explore
the
influence
of
cavitation
on
internal
fluid
excitation
characteristics
pumps,
numerical
simulations
and
performance
testing
evaluations
were
performed
IS65-50-125
centrifugal
pump.
The
prototype
pump's
exterior
characteristic
curves,
as
well
its
bubble
volume
distribution,
successfully
replicated
using
computations.
effect
pressure
pulsation
pump
under
various
operating
situations
was
comprehensively
investigated,
indicating
a
relationship
between
degree
root
mean
square
values
pulsation.
Special
emphasis
placed
changes
in
features
at
intermediate
high
frequencies,
processes
rising
vortex
shedding
impeller
trailing
edge
validate
simulation
results,
vibration
noise
platform
built,
studies
intensity
sound
field
conducted.
experimental
results
revealed
that
level
rose
conditions
deteriorated,
confirming
modeling
results.
This
study's
significant
innovation
is
precise
identification
different
by
monitoring
an
in-depth
discussion
impact
mechanism
phenomena
behavior
pumps.
study
demonstrates
differences
suction
sides
situations,
process
creation
generated
bubbles
input
channel
during
severe
cavitation.
gives
new
theoretical
basis
for
reduction,
improvements
stability.
Ultrasonics Sonochemistry,
Journal Year:
2024,
Volume and Issue:
109, P. 106999 - 106999
Published: July 17, 2024
Hydrodynamic
cavitation
reactors
are
of
great
promise
for
the
applications
chemical
process
intensification
and
water
treatment.
In
this
work,
a
novel
cylindrical
rotational
hydrodynamic
reactor
(CRHCR)
with
rectangular
grooves
oblique
tooth
protrusions
on
rotor
surface
was
studied.
The
three-dimensional
characterization
within
CRHCR
observed
from
front
left
views
by
high-speed
camera
experiments.
Interestingly,
new
phenomenon
simultaneous
formation
attached
shear
found
in
CRHCR.
synergistic
effect
contributes
to
enhancement
performance
addition,
evolution
is
explored.
It
that
forms
trapezoidal-shaped
cloud
groove,
which
undergoes
three
various
stages:
incipient,
development,
collapse.
Finally,
pulsation
frequency
intensity
chamber
were
investigated.
results
show
same
at
speed
near
diverse
teeth.
As
increases,
increases
linearly.
These
findings
paper
benefit
understanding
mechanism
Applied Sciences,
Journal Year:
2024,
Volume and Issue:
14(22), P. 10161 - 10161
Published: Nov. 6, 2024
Centrifugal
pumps
are
extensively
utilized
across
various
industries,
including
water
supply,
agriculture,
and
energy,
where
they
consume
significant
amounts
of
electricity.
As
demands
for
energy
efficiency
reduced
operating
costs
increase,
enhancing
pump
has
become
crucial.
This
study
focuses
on
optimizing
the
impeller
geometry,
which
plays
a
vital
role
in
minimizing
losses.
A
hydraulic
hydrodynamic
model
was
developed,
alongside
parametric
based
numerical
simulations
(CFD),
to
analyze
influence
geometric
parameters—specifically
angles
shapes
blade’s
inlet
outlet
edges—on
losses
efficiency.
The
experimental
data
provided
by
manufacturer
verification.
results
revealed
that
Ivanovsky’s
method
displayed
deviations
blade
width
at
leading
edge
trailing
25%
43%,
respectively,
while
Spiridonov’s
indicated
13%
outer
diameter
D2
27.5%
edge.
In
contrast,
combined
proposed
authors
achieved
high
accuracy,
with
under
9%.
Additionally,
analysis
identified
two
key
parameters
affecting
efficiency:
angle
its
shape.
These
findings
underscore
necessity
geometry
enhance
performance
centrifugal
pumps.
