Particle image velocimetry and a spectroscopy technique has been used to obtain information on the flow dynamics and flame thermal signatures of a fuel jet injected into a cross-flow of normal temperature and very high-temperature combustion air. Flame fluctuations were obtained using a high-speed camera and then performing fast Fourier transform on the signal. High-temperature air combustion has been demonstrated to provide significant energy savings, higher heat flux, and reduction of pollution and equipment size of industrial furnaces. The dynamics of flow associated with high temperature combustion air conditions (for mean velocity, axial strain rate and vorticity) has been obtained in two-dimensional using propane and methane as the fuels. The data have been compared with normal temperature combustion air case, including the nonburning case. A specially designed experimental test furnace facility was used to provide well-controlled conditions and allowed air preheats to $1100°C$ using regenerative burners. Four different experimental cases have been examined. The momentum flux ratio between the burning and nonburning conditions was kept constant to provide comparison between cases. The results provide the role of high-temperature combustion air on the dynamics of the flow, turbulence, and mixing under nonburning and combustion conditions. The data provide the direct role of combustion on flow dynamics, turbulence, and flame fluctuations. High-temperature combustion air at low-oxygen concentration showed larger flame volume with less fluctuation than normal or high-temperature normal air cases. High-temperature combustion air technology prolongs mixing in the combustion zone to enhance the flame volume, reduce flame fluctuations, and to provide uniform flow and thermal characteristics. This information assists in model validation and model development for new applications and technology development using high-temperature air combustion principles.

1.
Gupta
,
A. K.
, 2002, “
Flame Characteristics and Challenges with High Temperature Air Combustion
,”
2nd International Symposium on High Temperature Air Combustion and Applications
, Taipei, Taiwan, May 16–18.
2.
Hasegawa
,
T.
,
Mochida
,
S.
, and
Gupta
,
A. K.
, 2002, “
Development of Advanced Industrial Furnace using Highly Preheated Air Combustion
,”
J. Propul. Power
0748-4658,
18
(
2
), pp.
233
239
.
3.
Tsuji
,
H.
,
Gupta
,
A. K.
,
Hasegawa
,
T.
,
Katsuki
,
K.
,
Katsuki
,
M.
, and
Morita
,
M.
, 2003,
High Temperature Air Combustion: From Energy Conservation to Pollution Reduction
,
CRC Press
,
Boca Raton, FL
.
4.
Blasiak
,
W.
,
Szewczyk
,
D.
, and
Dobski
,
T.
, 2001, “
Influence of N2 Addition on Combustion of Single Jet of Methane in Highly Preheated Air
,”
Proceedings of International Joint Power Generation Conference, New Orleans, June
, JPGC2001/FACT-19048.
5.
Yang
,
W.
, and
Blasiak
,
W.
, 2001, “
Numerical Study of Fuel Temperature Influence on Single Gas Jet Combustion in Highly Preheated and Oxygen Depleted Air
,”
Proceedings 3rd International Symposium on Advanced Energy Conversion Systems and Related Technologies
,
Nagoya
,
Japan
, December 15–17.
6.
Mortberg
,
M.
,
Blasiak
,
W.
, and
Gupta
,
A. K.
, 2004, “
Combustion of Low Calorific Fuels in High Temperature Oxygen Deficient Environment
,”
Proceedings of the 23rd International Conference on Incineration and Thermal Treatment Technologies
,
Phoenix
,
AZ
.
7.
Weber
,
R.
,
Orsino
,
S.
,
Verlaan
,
A.
, and
Lallemant
,
N.
, 2000, “
Combustion of Natural Gas with High Temperature Air and Large Quantities of Flue Gas
,”
Proceedings of the 28th Symposium (International) on Combustion
,
The Combustion Institute
,
Pittsburgh, PA
, p.
1315
.
8.
Gupta
,
A. K.
,
Linck
,
M.
, and
Archer
,
S.
, 2004, “
A New Method to Measure Flowfield in Luminous Spray Flames
,”
J. Propul. Power
0748-4658,
20
(
2
), pp.
1217
122
.
9.
,
J. E.
, and
Breidenthal
,
R. E.
, 1984, “
Structure and Mixing of a Transverse Jet in Incompressible Flow
,”
Combust. Flame
0010-2180,
114
, pp.
319
335
.
10.
Choudhuri
,
A. R.
, and
Gollahalli
,
S. R.
, 2000, “
Effects of Ambient Pressure and Burner Scaling on the Flame Geometry and Structure of Hydrogen Jet Flames in Cross-flow
,”
Int. J. Hydrogen Energy
0360-3199,
25
, pp.
1107
1118
.
11.
Donghee
,
H.
, and
Mungal
,
M. G
, 2003, “
Simultaneous Measurements of Velocity and CH Distribution. Part II: Deflected Jet Flames
,”
Combust. Flame
0010-2180,
133
, pp.
1
17
.
12.
Gordon
,
M.
, and
Soria
,
J.
, 2002, “
PIV Measurements of a Zero-net-mass-flux Jet in Cross Flow
,”
Exp. Fluids
0723-4864,
33
, pp.
863
872
.
13.
Raffel
,
M.
,
Willert
,
C.
, and
Kompenhans
,
J.
, 1998,
Particle Image Velocimery
,
Springer
,
Berlin
, p.
14
.
14.
Konishi
,
N.
,
Kitagawa
,
K.
,
Arai
,
N.
, and
Gupta
,
A. K.
, 2002, “
Two-Dimensional Spectroscopic Analysis of Spontaneous Emission from a Flame using Highly Preheated Air Combustion
J. Propul. Power
0748-4658,
18
(
1
), pp.
199
204
.
15.
Mortberg
,
M.
,
Blasiak
,
W.
, and
Gupta
,
A. K.
, 2006, “
Combustion of Low Calorific Fuels in High Temperature Oxygen Deficient Environment
,”
Combust. Sci. Technol.
0010-2202,
18
, pp.
1345
1372
.
16.
Mortberg
,
M.
,
Blasiak
,
W.
, and
Gupta
,
A. K.
, 2005, “
Flow Phenomena of Normal and Low Calorific Value Fuels in High Temperature Air Combustion Conditions
,”
Ind. Heat.
0019-8374,
42
(
1
), pp.
45
54
(in Japanese).
17.
Gupta
,
A. K.
, 2004, “
Thermal Characteristics of Gaseous Fuel Flames Using High Temperature Air
,”
ASME J. Eng. Gas Turbines Power
0742-4795,
126
(
1
) pp.
9
19
.
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