Effects of diluent gases on combustion of coal gasification gas: Comparison between N 2and CO 2 dilutions

Yukihide Nagano, Kunihiro Kado, Tomohiro Takeo, Yukito Miki, Toshiaki Kitagawa

研究成果: 著書/レポートタイプへの貢献会議での発言

抄録

Combustion properties of coal gasification gas with CO 2dilution were investigated for a newly proposed IGCC power generation system with CO 2 capture. In this system, the gasification gas was burned under high CO 2 concentration atmosphere. In order to clarify the properties of the flames under such atmosphere, the laminar and turbulent burning velocities were investigated for outwardly propagating stoichiometric H 2/O 2/CO 2 and H 2/O 2/N 2 flames under the two conditions, 1: the same amount of diluent of CO 2 or N 2, 2: the constant flame temperature irrespective of diluents. Under the condition1 of the same amount of diluents, the unstretched laminar burning velocities, u l of CO 2 diluted flames were smaller than those of N 2 diluted flames. The ratios of the turbulent burning velocity at the flame radius 30mm, u tn(30mm)to u l of the CO 2 diluted flames were found to be larger than those of N 2 diluted flames. Under the condition2 of the constant flame temperature, it was set to 1300, 1500, 1700, and 2135 degrees Celsius. At the flame temperatures except for 2135 degrees Celsius, u l of CO 2 diluted flames were slightly smaller than those of N 2 diluted flames. The ratios, u tn(30mm) / u lof CO 2 diluted flames were larger than those of N 2 diluted flames. Increase in the turbulence Karlovitz number and decrease in the Markstein number by the CO 2 dilution might cause the increase in u tn(30mm) / u l of CO 2 diluted flames in both conditions.

元の言語英語
ホスト出版物のタイトルASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
出版物ステータス出版済み - 12 1 2011
イベントASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 - Honolulu, HI, 米国
継続期間: 3 13 20113 17 2011

出版物シリーズ

名前ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011

その他

その他ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011
米国
Honolulu, HI
期間3/13/113/17/11

Fingerprint

Coal gasification
Dilution
Gases
Gasification
Temperature
Power generation
Turbulence

All Science Journal Classification (ASJC) codes

  • Energy Engineering and Power Technology

これを引用

Nagano, Y., Kado, K., Takeo, T., Miki, Y., & Kitagawa, T. (2011). Effects of diluent gases on combustion of coal gasification gas: Comparison between N 2and CO 2 dilutions. : ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011 (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011).

Effects of diluent gases on combustion of coal gasification gas : Comparison between N 2and CO 2 dilutions. / Nagano, Yukihide; Kado, Kunihiro; Takeo, Tomohiro; Miki, Yukito; Kitagawa, Toshiaki.

ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011. 2011. (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011).

研究成果: 著書/レポートタイプへの貢献会議での発言

Nagano, Y, Kado, K, Takeo, T, Miki, Y & Kitagawa, T 2011, Effects of diluent gases on combustion of coal gasification gas: Comparison between N 2and CO 2 dilutions. : ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011. ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011, ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011, Honolulu, HI, 米国, 3/13/11.
Nagano Y, Kado K, Takeo T, Miki Y, Kitagawa T. Effects of diluent gases on combustion of coal gasification gas: Comparison between N 2and CO 2 dilutions. : ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011. 2011. (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011).
Nagano, Yukihide ; Kado, Kunihiro ; Takeo, Tomohiro ; Miki, Yukito ; Kitagawa, Toshiaki. / Effects of diluent gases on combustion of coal gasification gas : Comparison between N 2and CO 2 dilutions. ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011. 2011. (ASME/JSME 2011 8th Thermal Engineering Joint Conference, AJTEC 2011).
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