B110 EFFECTS OF COAL PARTICLES SEEDING ON BURNING VELOCITY OF METHANE-AIR MIXTURES(Droplet/particle combustion-2)
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概要
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This paper describes experimental and numerical studies about effects of coal particles seeding on flame propagation velocity and burning velocity of lean methane-air mixtures. To produce uniform coal dust clouds and to eliminate the buoyancy effect, experiments are carried out under microgravity environment, being obtained with the 500-m drop shaft of Japan Microgravity Center (JAMIC). Experimental and numerical results reveal that seeding of an appropriate amount of coal particles increases flame propagation velocity. In spite of this, the increase of burning velocity is almost zero or very small. Accordingly, the main cause of the enhancement of flame propagation velocity is the gas expansion due to coal combustion behind the methane-air flame. This is because coal combustion is nearly isolated from methane combustion in conditions investigated in this study.
- 一般社団法人日本機械学会の論文
- 2000-10-01
著者
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FUJITA Osamu
Department of Physics,Aoyama-Gakuin University
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Fujita O
Hokkaido Univ. Sapporo Jpn
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Kudo Isao
Department Of Fisheries Oceanography And Marine Sciences Faculty Of Fisheries Hokkaido University
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Kudo Isao
Department Of Applied Biological Chemistry Faculty Of Agriculture; Graduate School Of Science And Te
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Fujita O
Kyushu Univ. Fukuoka
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FUJITA Osamu
Kariya General Hospital Eastern Division
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ITO KENICHI
Department of Physical Therapy, School of Comprehensive Rehabilitation, Osaka Prefecture University
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Fujita Osamu
Department Of Physics Aoyama-gakuin University
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Ito K
Hokkaido Univ. Sapporo Jpn
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NAGATA Harunori
Department of Mechanical Science, Hokkaido University
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TAKESHITA Yasuhiro
Japan Space Utilization Promotion Center
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Nagata Harunori
Department Of Mechanical Science Hokkaido University
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Fujita Osamu
Department Of Mechanical Engineering Hokkaido University
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Ito Kenichi
Department Of Mechanical Engineering Hokkaido University
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Fujita Osamu
Department Of Mechanical And Space Engineering Hokkaido University
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Fujita Osamu
Department of Bioresources Science and Technology, Graduate School of Biosphere Science, Hiroshima University
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