This study investigates the effect of diffuse non-equilibrium nanosecond-pulsed plasma at atmospheric pressure on a lean-premixed CH4-air flame (ϕ = 0.65, P ∼ 0.3 kW). The domain of diffuse plasma existence is explored for both the case of the cold flow (no flame) and the case where a flame is stabilized downstream. The dynamics of plasma propagation and the flame displacement, following a high-voltage pulse, were measured using intensified charge-coupled device imaging. The energy of the plasma was measured using electrical probes and measurements of the second positive system of nitrogen were used to determine the rotational temperature and vibrational populations in the plasma. The effect of plasma on a flame was investigated by varying the pulse repetition frequency gradually from 1 to 7 kHz. Time-resolved imaging of the plasma emission shows that the primary streamer travels at higher velocities with increased pulsing frequency and with the presence of a flame ignited downstream of the discharge. Time-resolved imaging of the flame, following a high-voltage pulse, shows that the flame moves upstream into the unburned methane-air mixture with increased pulsing frequency. As the flame is displaced upstream, the nature of the discharge also changes, whereby less energy is coupled to the gas volume. Spectroscopic results reveal that the region in which the flame stabilizes is that of highest vibrational excitation and lowest rotational temperature. This actuation method is evidence of low-temperature chemical flame enhancement and potential control of a lean-premixed laminar flame at atmospheric pressure.

1.
Y.
Ju
and
W.
Sun
,
Prog. Energy Combust. Sci.
48
,
21
(
2015
).
2.
S. M.
Starikovskaia
,
J. Phys. D: Appl. Phys.
47
,
353001
(
2014
).
3.
A. Y.
Starikovskii
,
N. B.
Anikin
,
I. N.
Kosarev
,
E. I.
Mintoussov
,
S. M.
Starikovskaia
, and
V. P.
Zhukov
,
Pure Appl. Chem.
78
,
1265
(
2006
).
4.
V. Y.
Basevich
and
A. A.
Belyaev
,
Sov. J. Chem. Phys.
9
,
1874
(
1992
).
5.
Z.
Yin
,
K.
Takashima
, and
I. V.
Adamovich
,
IEEE Trans. Plasma Sci.
39
,
3269
(
2011
).
6.
D. R.
Singleton
,
A.
Kuthi
,
J. M.
Sanders
,
M. A.
Gundersen
,
A.
Simone
, and
S. J.
Pendleton
,
IEEE Trans. Dielectr. Electr. Insul.
18
,
1084
(
2011
).
7.
J. K.
Lefkowitz
and
T.
Ombrello
,
Combust. Flame
180
,
136
(
2017
).
8.
M.
Pinchak
,
C.
Carter
,
E.
Gutmark
,
V.
Katta
, and
T.
Ombrello
,
Philos. Trans. R. Soc. A: Math. Phys. Eng. Sci.
373
,
17
(
2015
).
9.
I. V.
Adamovich
,
W. R.
Lempert
,
J. W.
Rich
,
Y. G.
Utkin
, and
M.
Nishihara
,
J. Propul. Power
24
,
1198
(
2008
).
10.
D. A.
Lacoste
,
J. P.
Moeck
,
D.
Durox
,
C. O.
Laux
, and
T.
Schuller
,
J. Eng. Gas Turbine Power
135
,
1
(
2013
).
11.
D. L.
Rusterholtz
,
D. A.
Lacoste
,
G. D.
Stancu
,
D. Z.
Pai
, and
C. O.
Laux
,
J. Phys. D: Appl. Phys.
46
,
464010
(
2013
).
12.
D. Z.
Pai
,
D. A.
Lacoste
, and
C. O.
Laux
,
Plasma Sources Sci. Technol.
19
,
65015
(
2010
).
13.
G. L.
Pilla
,
D. A.
Lacoste
,
D.
Veynante
, and
C. O.
Laux
,
IEEE Trans. Plasma Sci.
36
,
940
(
2008
).
14.
S.
Barbosa
,
G.
Pilla
,
D. A.
Lacoste
,
P.
Scouflaire
,
S.
Ducruix
,
C. O.
Laux
, and
D.
Veynante
,
Philos. Trans. R. Soc. A: Math. Phys. Eng. Sci.
373
,
20140335
(
2015
).
15.
D. A.
Lacoste
,
J. P.
Moeck
,
C. O.
Paschereit
, and
C. O.
Laux
,
J. Propul. Power
29
,
748
(
2013
).
16.
A. M.
Starik
,
V. E.
Kozlov
, and
N. S.
Titova
,
Combust. Flame
157
,
313
(
2010
).
17.
T.
Ombrello
,
S. H.
Won
,
Y.
Ju
, and
S.
Williams
,
Combust. Flame
157
,
1916
(
2010
).
18.
T.
Ombrello
,
S. H.
Won
,
Y.
Ju
, and
S.
Williams
,
Combust. Flame
157
,
1906
(
2010
).
19.
A. M.
Starik
,
P. S.
Kuleshov
,
A. S.
Sharipov
,
V. A.
Strelnikova
, and
N. S.
Titova
,
Proc. Combust. Inst.
34
,
3277
(
2013
).
20.
N. A.
Popov
,
Plasma Sources Sci. Technol.
25
,
43002
(
2016
).
21.
C.
Guerra-Garcia
,
M.
Martinez-Sanchez
,
R. B.
Miles
, and
A.
Starikovskiy
,
Plasma Sources Sci. Technol.
24
,
55010
(
2015
).
22.
M. D. G.
Evans
,
J. M.
Bergthorson
, and
S.
Coulombe
,
IEEE Trans. Plasma Sci.
44
,
2429
(
2016
).
23.
D. A.
Lacoste
,
J. P.
Moeck
,
W. L.
Roberts
,
S. H.
Chung
, and
M. S.
Cha
,
Proc. Combust. Inst.
36
,
4145
(
2015
).
24.
D. A.
Lacoste
,
Y.
Xiong
,
J. P.
Moeck
,
S. H.
Chung
,
W. L.
Roberts
, and
M. S.
Cha
,
Proc. Combust. Inst.
36
,
4183
(
2017
).
25.
D. Z.
Pai
,
D. A.
Lacoste
, and
C. O.
Laux
,
J. Appl. Phys.
107
,
93303
(
2010
).
26.
N. L.
Aleksandrov
,
F. I.
Vysikailo
,
R. S.
Islamov
,
I. V.
Kochetov
,
A. P.
Napartovich
, and
V. G.
Pevgov
,
High Temp.
19
,
17
(
1981
).
27.
I. V.
Adamovich
,
M.
Nishihara
,
I.
Choi
,
M.
Uddi
, and
W. R.
Lempert
,
Phys. Plasmas
16
,
113505
(
2009
).
28.
G.
Colonna
,
L. D.
Pietanza
,
A.
D'Angola
,
A.
Laricchiuta
, and
A.
Di Vita
,
Plasma Sources Sci. Technol.
26
,
25008
(
2017
).
29.
S. V.
Pancheshny
,
S. V.
Sobakin
,
S. M.
Starikovskaya
, and
A. Y.
Starikovskii
,
Plasma Phys. Rep.
26
,
1054
(
2000
).
30.
S.
Nijdam
,
E.
Takahashi
,
A. H.
Markosyan
, and
U.
Ebert
,
Plasma Sources Sci. Technol.
23
,
25008
(
2014
).
31.
F. R.
Gilmore
,
R. R.
Laher
, and
P. J.
Espy
, “
Franck-Condon factors, R-centroids, electronic transition moments, and Einstein coefficients for many nitrogen and oxygen band systems
,”
J. Phys. Chem. Rev. Data
21
,
1005
1107
(
1992
).
32.
G.
Herzberg
,
Molecular Spectra and Molecular Structure
, Spectra of Diatomic Molecules Vol. I, 2nd ed. (
D. Van Nostrand Company Ltd
.,
London
,
1939
).
33.
S. V.
Pancheshnyi
,
S. M.
Starikovskaia
, and
A. Y.
Starikovskii
,
Chem. Phys.
262
,
349
(
2000
).
34.
M. D. G.
Evans
,
F. P.
Sainct
,
F.
Aristizabal
,
J. M.
Bergthorson
, and
S.
Coulombe
,
J. Phys. D: Appl. Phys.
48
,
255203
(
2015
).
35.
J.
Li
,
Z.
Zhao
,
A.
Kazakov
,
M.
Chaos
,
F. L.
Dryer
, and
J. J.
Scire
,
Int. J. Chem. Kinet.
39
,
109
(
2007
).
36.
H. C.
Jaggers
and
A.
von Engel
,
Combust. Flame
16
,
275
(
1971
).
37.
J. M.
Bergthorson
,
S. D.
Salusbury
, and
P. E.
Dimotakis
,
J. Fluid Mech.
681
,
340
(
2011
).
38.
D.
Xu
,
M. N.
Shneider
,
D. A.
Lacoste
, and
C. O.
Laux
,
J. Phys. D: Appl. Phys.
47
,
235202
(
2014
).
39.
S.
Stepanyan
,
J.
Hayashi
,
A.
Salmon
,
G. D.
Stancu
, and
C. O.
Laux
,
Plasma Sources Sci. Technol.
26
,
04LT01
(
2017
).
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