During
the
process
of
coal
spontaneous
combustion
(CSC),
a
plethora
combustible
gases
alongside
inert
gases,
such
as
CO2,
are
copiously
generated.
However,
prior
investigations
have
regrettably
overlooked
pivotal
influence
gas
production
on
propensity
for
methane
explosions
during
CSC.
To
investigate
impact
flue
environment
generated
by
CSC,
containing
both
and
risk
explosion,
high-temperature
programmed
heating
test
system
CSC
was
employed
to
analyze
generation
pattern
gas.
It
found
that
CO,
CH4
were
continuously
in
large
quantities
which
main
components
The
effect
concentration
component
ratio
(CCO2/CCO)
explosion
limit
tested.
led
decrease
limit,
range
facilitated
at
0
<
CCO2/CCO
0.543
suppressed
>
0.543.
As
temperature
increases,
is
initially
suppressed.
When
exceeds
330~410
°C,
rapidly
expands.
Journal of Marine Science and Engineering,
Год журнала:
2024,
Номер
12(6), С. 884 - 884
Опубликована: Май 26, 2024
Over
the
past
few
decades,
marine
current
energy
utilization
has
transitioned
from
conceptual
demonstrations
to
industrial-scale
prototypes.
This
progression
now
approaches
a
crucial
phase
emphasizing
need
for
industrialization
and
commercialization.
paper
provides
an
in-depth
examination
of
developmental
status
large-scale
turbines
arrays,
underscoring
promising
prospects
systems.
Despite
significant
advancements,
deployment
these
systems
revealed
several
challenges,
including
blade
design
optimization,
transmission
system
selection,
establishment
appropriate
test
sites.
Addressing
issues
is
essential
technological
maturity
economic
feasibility,
which
will
foster
next
wave
innovation
in
Furthermore,
offers
various
perspectives
future
applications.
Scientific Reports,
Год журнала:
2025,
Номер
15(1)
Опубликована: Янв. 29, 2025
High
carbon
sectors
(agriculture,
industry,
construction,
and
transportation)
contribute
nearly
85%
of
emissions,
highlighting
the
urgent
need
for
transitioning
towards
cleaner
energy
structures
in
these
sectors.
This
study
utilizes
undesirable
SBM
model
to
assess
TFEE
(total
factor
efficiency)
across
total
sector
high
It
decomposes
from
an
structural
perspective
into
coal,
oil,
natural
gas,
electric
heat
efficiencies.
Using
a
variance-like
decomposition
model,
it
analyzes
at
two
levels
examine
how
changes
specific
categories
affect
TFEE.
From
2010
2021,
China's
increased
0.542
0.676,
with
coal
identified
as
critical
factors
limiting
improvements.
Among
four
sectors,
construction
exhibited
significant
increase
TFEE,
agriculture
showed
steep
rise,
industry
demonstrated
U-shaped
trend
turning
point
2015,
transportation
experienced
slight
decline.
exhibits
descending
order
among
ranking
highest,
followed
by
transportation.
Similarly,
efficiencies
types
show
hierarchical
structure,
oil
being
most
efficient,
heat,
coal.
Construction
dominates
sectoral
level,
contributing
58.87%,
while
contributes
over
30%
category
level.
The
results
each
province
further
indicate
that
both
structure
significantly
impact
this
influence
also
regional
heterogeneity.
"Este
capítulo
presenta
una
perspectiva
teórica
sobre
el
desarrollo
sostenible,
la
energía
renovable
y
legislación
fiscal
en
China,
analiza
preocupación
por
calentamiento
global
sus
efectos
medioambiente.
Se
estructuraron
varias
fases:
(1)
exposición
de
fundamentos
cualitativos
cuantitativos
tributación
verde;
(2)
revisión
del
caso
estudio
identificando
diversas
alternativas
encaminadas
a
los
procesos
descarbonización
concordancia
con
Objetivos
Desarrollo
Sostenible
(ODS);
(3)
matriz
políticas
desarrolladas
algunos
países
América
Latina
(ODS),
como
uso
diferentes
variantes
energéticas
adopción
energías
limpias
que
refuerzan
las
innovaciones
tecnológicas
empresas;
(4)
complemento
realiza
un
análisis
bibliométrico
soporte
VOSviewer
1.6.
19
Biblioshiny
R
keywords
“green
tax”,
“environmental
“global
warming”,
“renewable
energies”.
Los
resultados
muestran
necesidad
entes
gubernamentales
continuar
su
labor
para
establecer
fiscales
mejorar
problemas
medioambientales
concientizar
sociedad
cumplimiento;
asimismo,
apertura
monitoreo
mundial
avances
materia
sinergia
(ODS).
Por
ende,
se
pueden
sugerir
estudios
sectores
económicos
relacionados
sostenibilidad
compromiso
Agenda
2030
Latinoamérica"
