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TECHNICAL PAPERS: Fuels and Combustion Technology

Mass Spectrometric Detection of Ionic and Neutral Species During Highly Preheated Air Combustion by Alkali Element Ion Attachment

[+] Author and Article Information
T. Ishiguro, K. Matsumoto

Department of Applied Chemistry, Graduate School of Engineering

A. Matsunami, K. Kitagawa

Research Center for Advanced Energy Conversion

N. Arai

Research Center for Advanced Energy Conversion, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan

A. K. Gupta

Department of Mechanical Engineering, University of Maryland, College Park, MD 20742e-mail: akgupta@end.umd.edu

J. Eng. Gas Turbines Power 124(4), 749-756 (Sep 24, 2002) (8 pages) doi:10.1115/1.1473158 History: Received October 03, 2000; Revised January 28, 2002; Online September 24, 2002
Copyright © 2002 by ASME
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References

Gupta, A. K., and Li, Z., 1997, “Effect of Property on the Structure of Highly Preheated Air Flames,”Proc. of the ASME 1997 International Joint Power Generation Conference (IJPGC), Denver, CO, ASME EC-Vol. 5, ASME, New York, pp. 247–258.
Choi,  G.-M., and Katsuki,  M., 2000 “New Approach to Low Emission of Nitric Oxides from Furnaces Using Highly Preheated Air Combustion,” J. Inst. Energy, 73, pp. 18–24.
Katsuki, M., and Ebisui, K., 1997 “Possibility of Low Nitric Oxides Emissions From Regenerative Combustion Systems using Highly Preheated Air,” Proc. Asian Pacific Combustion Conference (ASPACC-97), Osaka University, Osaka, Japan, May 12–15, 1997, pp. 294–297.
Ishiguro, T., Tsuge, S., Furuhata, T., Kitagawa, K., Arai, N., Hasegawa, T., Tanaka, R., and Gupta, A. K., 1998, “Homogenization and Stabilization During Combustion of Hydrocarbons with Preheated Air,” Proc. 27th Symposium (Intl.) on Combustion, The Combustion Institute, Pittsburgh, PA, pp. 3205–3213.
Gupta,  A. K., Bolz,  S., and Hasegawa,  T., 1999, “Effect of Air Preheat and Oxygen Concentration on Flame Structure and Emission,” ASME J. Energy Resour. Technol., 121, pp. 209–216.
Konishi, N., Kitagawa, K., Arai, N., and Gupta, A. K., 2000 “Two-Dimensional Spectroscopic Analysis of Spontaneous Emission From a Flame Using Highly Preheated Air Combustion,” J. Propul. Power, to appear in Jan.-Feb. issue.
Hasegawa, T., Mochida, S., and Gupta, A. K., 2001, “Development of Advanced Industrial Furnace using Highly Preheated Air Combustion,” J. Propul. Power, to appear in Jan-Feb issue.
Weber,  R., Verlaan,  A. L., Orsino,  S., and Lallemant,  N., 1999, “On Emerging Furnace Design Methodology that Provides Substantial Energy Savings and Drastic Reductions in CO2, CO, and NOx Emissions,” J. Inst. Energy, , 72, pp. 77–83.
Katsuki, M., and Hasegawa, T., 1998, “The Science and Technology of Combustion in Highly Preheated Air,” Proc. 27th Symposium (Intl.) on Combustion, The Combustion Institute, Pittsburtgh, PA, 27 , pp. 3135–3146.
Tsuji, H., Gupta, A. K., Katsuki, M., Hasegawa, T., Kishimoto, K., and Morita, M., 2002, High Temperature Air Combustion: From Energy Conservation to Pollution Reduction, CRC Press, Boca Raton, FL.
Fujii,  T., 1992, “A Novel Method for Detection of Radial Species in the Gas Phase: Usage of Li+ ion Attachment to Chemical Species,” Chem. Phys. Lett., 191, Nos. 1 and 2, pp. 162–168.

Figures

Grahic Jump Location
Experimental setup for the detection of ionic species and neutral species in flames. A: Electric heater; B: mass spectrometer (Shimadzu QP1100EX); 1 sampling cone interface (orifice diameter 0.2 mm); 2 skimmer cone interface (orifice diameter 0.2 mm); 3 ion lends (15 mm i.d., 54 mm o.d., and 14 mm in thickness); 4 quadrupole mass analyzer; 5 channeltron detector; 6 vacuum pump (pressure in MS: 2.7×10−3 Pa); C: quartz burner head (4.0 mm i.d.); D lithium dry aerosol generator.
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The measurement locations used for investigating the spatial profiles in the flames. The value in the parentheses represents the relatively long flame obtained with highly preheated and diluted air under conditions of TN2+O2= 1000°C, O2 conc. in air=10%, and ϕ=2.0.
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Lithium dry aerosol generator
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The mass spectra detected at five different locations in the flame (from the upstream position PA to the downstream PE shown in Fig. 2). Conditions: TN2+O2=20°C, O2 conc. in air=21%, and ϕ=1.0 (flame I).
Grahic Jump Location
The mass spectra detected at the downstream position PE (10 mm from the flame tip). Conditions of TN2+O2= 1000°C, O2 conc. in air=21%, and ϕ=1.0 (flame II).
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The mass spectra at the downstream position PE (10 mm from the flame tip). Conditions TN2+O2=1000°C, O2 conc. in air=10%, and ϕ=2 (flame III).
Grahic Jump Location
The mass spectra detected with lithium ion attachment technique at position PE (10 mm from the flame tip). The flame conditions used were (a) TN2+O2=20°C, O2 conc. in air=21%, and ϕ=1.0 (flame I); (b) TN2+O2=1000°C, O2 conc. in air=21%, and ϕ=1.0 (flame II); (c) TN2+O2=1000°C, O2 conc. in air=10%, and ϕ=2.0 (flame III).
Grahic Jump Location
The mass spectra obtained at position PB with lithium ion attachment technique. The flame conditions used were (a) TN2+O2=20°C, O2 conc. in air=21%, and ϕ=1.0 (flame I); (b) TN2+O2=1000°C, O2 conc. in air=21%, and ϕ=1.0 (flame II); (c) TN2+O2=1000°C, O2 conc. in air=10%, and ϕ=2.0 (flame III).
Grahic Jump Location
The calculated mass spectra of neutral species at position PE with lithium attachment technique. The flame conditions were (a) TN2+O2=20°C, O2 conc. in air=21%, and ϕ=1.0 (flame I); (b) TN2+O2=1000°C, O2 conc. in air=21 %, and ϕ=1.0 (flame II); (c) TN2+O2=1000°C, O2 conc. in air=10%, and ϕ=2.0 (flame III).
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The spectra of the C2 swan band from the flames; (a) flame I, (b) flame II, (c) flame III
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Fluctuation of TIM at positions PB in the flame; (a) flame I, (b) flame II, (c) flame III

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