We have developed the novel oxygen-enriched burner using the self-induced oscillating phenomenon of jet flow which has excellent radiation heat transfer characteristics. We revealed that the flame property suitable for radiation heat transfer is obtained by extending the oscillation cycle. By optimizing the connecting tube length and diameter, we got the stable oscillating flame in 1 s-oscillation period. At this time, the relationship between the burner structure including the connecting tube and the oscillation period can be easily evaluated by the dimensionless tube length and Strouhal number. In addition, combining multi-staged combustion technology, the burner can improve heat transfer efficiency by 9.1% compared with the conventional oxygen-enriched burner. We confirmed that the burner has a low NOx emission level below 55 ppm.

References

References
1.
Igarashi
,
H.
,
Abe
,
T.
,
Miyake
,
S.
,
Sumi
,
I.
, and
Kikuchi
,
Y.
,
2003
, “
Development of High Speed Oxygen Burner Lance for Electric Arc Furnace
,”
Nippon Sanso Engineering Report (in Japanese)
,
22
, pp.
7
12
.
2.
Hagihara
,
Y.
,
Haneji
,
T.
,
Yamamoto
,
Y.
, and
Iino
,
K.
,
2017
, “
Ultra-Low NOx Oxygen-enriched Combustion System using Oscillation Combustion Method
,”
Energy Procedia
,
120
, pp.
189
196
.
3.
Iino
,
K.
,
Konjo
,
N.
, and
Sanui
,
H.
,
1994
, “
Development of Oxy-Fuel Burner for Glass Melting
,”
Nippon Sanso Engineering Report (in Japanese)
,
13
, pp.
17
21
.
4.
Viets
,
H.
,
1995
, “
Flip-Flop Jet Nozzle
,”
AIAA J.
,
13
(
10
), pp.
1375
1379
.
5.
Morris
,
G. J.
,
Jurewicz
,
J. T.
, and
Palmer
,
G. M.
,
1992
, “
Gas-Solid Flow in a Fluidically Oscillating Jet
,”
ASME J. Fluids Eng.
,
114
(
3
), pp.
362
366
.
6.
Raman
,
G.
,
Rice
,
E. J.
, and
Cornelius
,
D. M.
,
1994
, “
Evaluation of Flip-Flop Jet Nozzles for Use as Practical Excitation Devices
,”
ASME J. Fluids Eng.
,
116
(
3
), pp.
508
515
.
7.
Koso
,
T.
,
Abe
,
N.
, and
Kawaguchi
,
S.
,
2003
, “
Self-Induced Oscillation of a Jet Issued From a Flip-Flop Jet Nozzle (Effect of Connecting Duct Length on the Oscillation)
,”
JSME Proc.
,
38
(
1
), pp.
69
70
.
8.
Koso
,
T.
,
Kawaguchi
,
S.
,
Hojo
,
M.
, and
Hayami
,
H.
,
2002
, “
Flow Mechanism of a Self-Induced Oscillating Jet Issued From a Flip-Flop Jet Nozzle
,”
The 5th JSME-KSME Fluids Engineering Conference
,
Nagoya
.
9.
Baukal
,
C. E.
, Jr.
,
1998
,
Oxygen-Enhanced Combustion
,
CRC Press LLC
,
Boca Raton, FL
.
10.
Baukal
,
C. E.
, Jr.
,
2003
,
Industrial Burners Handbook
,
CRC Press LLC
,
Boca Raton, FL
.
You do not currently have access to this content.