Passage parameters study of a new prechamber type combustion system aiming at decarbonization and emission reduction in a diesel engine
Yingying Lu,
No information about this author
Yi Qian,
No information about this author
Meng Wang
No information about this author
et al.
Sustainable Energy Technologies and Assessments,
Journal Year:
2025,
Volume and Issue:
75, P. 104248 - 104248
Published: Feb. 20, 2025
Language: Английский
Experimental investigation of prechamber enabled mixing-controlled combustion with natural gas – A pathway to ultra-low methane emissions
John Ronsman,
No information about this author
Julia A. Valla,
No information about this author
Osama Nsaif
No information about this author
et al.
Fuel,
Journal Year:
2025,
Volume and Issue:
392, P. 134757 - 134757
Published: Feb. 27, 2025
Language: Английский
Numerical simulation study of spray wall impingement and adhered fuel film under different altitude conditions during cold start of diesel engines
Jie Yan,
No information about this author
Weizheng Zhang,
No information about this author
Xu He
No information about this author
et al.
Applied Thermal Engineering,
Journal Year:
2025,
Volume and Issue:
unknown, P. 126107 - 126107
Published: Feb. 1, 2025
Language: Английский
Mixing-Controlled Combustion of Ethanol Enabled by Prechamber Ignition (PC-MCC): A Preliminary Experimental Demonstration
SAE international journal of fuels and lubricants,
Journal Year:
2025,
Volume and Issue:
18(2)
Published: March 17, 2025
<div>This
experimental
study
presents
preliminary
investigations
of
prechamber-enabled
mixing-controlled
combustion
(PC-MCC)
at
−2
bar
brake
mean
effective
pressure
(BMEP)
and
2200
rpm
with
fuel-grade
ethanol
(E98).
Experimental
results
are
conducted
on
a
prechamber
retrofitted
single-cylinder
Caterpillar
C9.3B
test
engine.
First,
series
prechamber-only
experiments
were
motored
engine
to
evaluate
the
salient
trends
in
response
relevant
operating
parameters.
Under
firing
conditions,
strategy
was
assessed
respect
impact
ignition
assistance
direct-injected
E98
overall
performance.
The
indicate
jet-induced
process
is
robust
prompts
diffusion
diesel-like
boundary
conditions.
effect
external
exhaust
gas
recirculation
(EGR)
residual
tolerance
also
investigated
showed
stable
both
main
chamber
up
30%
EGR.
Experiments
stock
diesel
for
baseline
comparison.
At
matched
phasing,
enabled
by
able
achieve
heightened
gross
thermal
efficiency
while
simultaneously
reducing
NOx
practically
eliminating
smoke
emissions
relative
combustion.
In
addition,
covariance
load
standard
deviation
phasing
less
than
2%
1
CAD,
respectively.</div>
Language: Английский
Effect of blending ratio and equivalence ratio on combustion process of ammonia/hydrogen rotary engine
Pengzhen Li,
No information about this author
Jianfeng Pan,
No information about this author
Baowei Fan
No information about this author
et al.
Applied Thermal Engineering,
Journal Year:
2025,
Volume and Issue:
unknown, P. 126635 - 126635
Published: April 1, 2025
Language: Английский
Numerical investigation of pre-chamber holes diameter geometry on combustion parameters in a hydrogen-powered Turbulent Jet Ignition engine
Marcelina Górzyńska,
No information about this author
Ireneusz Pielecha
No information about this author
Silniki Spalinowe/Combustion Engines,
Journal Year:
2024,
Volume and Issue:
unknown
Published: Oct. 11, 2024
The
search
for
substitutes
conventional
fuels
leads
to
the
use
of
hydrocarbon-free
or
synthetic
fuels.
One
them
is
hydrogen.
hydrogen
in
combination
with
a
two-stage
charge
creation
system
combustion
lean
(λ
>
1)
very
3)
charges.
simulation
tests
carried
out
were
aimed
at
determining
best
configuration
chamber
connecting
prechamber
main
chamber.
Three
variants
diameter
holes
chambers
selected
(d
=
0.5;
1.0
and
1.5
mm)
different
fuel
doses
fed
prechamber.
A
passive
(qo_PC
0
mg)
an
active
0.4
1.2
used,
while
simultaneously
sending
dose
(qo_MC
6
mg).
research
was
conducted
using
AVL
Fire
2022.1
software
moving
mesh
LDV
engine.
As
result
work,
most
favorable
conditions
carrying
process
determined,
considering
thermodynamic
effects
accepted
values
nitrogen
oxide
concentration.
resulting
correlation
maps
sizes
openings
may
determine
initial
selection
possibilities
controlling
TJI
system.
Language: Английский
Experimental Investigation of Prechamber Enabled Mixing-Controlled Combustion with Natural Gas – a Pathway to Ultra-Low Methane Emissions
John Ronsman,
No information about this author
Julia A. Valla,
No information about this author
Osama Nsaif
No information about this author
et al.
Published: Jan. 1, 2024
Language: Английский
Offset Active Prechamber (OAP): A Strategy to Enable Low Load GCI Operation
Saurabh Gupta,
No information about this author
Reed Hanson,
No information about this author
Adam Dempsey
No information about this author
et al.
SAE technical papers on CD-ROM/SAE technical paper series,
Journal Year:
2024,
Volume and Issue:
1
Published: Nov. 5, 2024
<div
class="section
abstract"><div
class="htmlview
paragraph">High
fuel
stratification
gasoline
compression
ignition
(HFS-GCI)
strategies
allow
for
the
use
of
control
methods
similar
to
those
used
by
diesel-fueled
(CI)
engines
while
offering
emissions
benefits
gasoline-like
fuels.
Despite
this
benefit,
low
load
GCI
operation
requires
assistance
viz.
intake
boosting,
heating,
cylinder
deactivation,
etc.
consistent
autoignition.
A
novel
methodology
using
an
offset
active
prechamber
(OAP)
is
proposed
in
work
enable
operation.
1.5cc
OAP
with
a
pressure-sensing
spark
plug
and
gaseous
injection
system
designed
mounted
medium-duty
single-cylinder
test
engine
based
on
Cummins
ISB
engine.
The
provided
two
holes
ignite
spray
from
centrally
direct
(DI)
injector.
Gasoline
was
as
main
chamber
methane
fuel.
detailed
parametric
optimization
both
parameters
are
performed
presented.
Results
show
that
improves
combustion
stability
at
no
thermal
efficiency
penalty.</div></div>
Language: Английский