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TECHNICAL PAPERS

Initiation of SHS Flame Induced by Another SHS Flame—Evaluation of the Ignition Energy

[+] Author and Article Information
Atsushi Makino

Department of Mechanical Engineering, Faculty of Engineering, Shizuoka University, Hamamatsu 432-8561, Japane-mail: tmamaki@eng.shizuoka.ac.jp

J. Energy Resour. Technol 123(1), 70-75 (Oct 30, 2000) (6 pages) doi:10.1115/1.1345892 History: Received March 15, 2000; Revised October 30, 2000
Copyright © 2001 by ASME
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Figures

Grahic Jump Location
Model used for analyzing the SHS flame initiation in the specimen, induced by another SHS flame that has passed through the igniter
Grahic Jump Location
Ignition energy E as a function of the mixture ratio μig in the igniter, with the emissivity ε taken as a parameter. The specimen is stoichiometric with 10 μm radius particles (R0). Energy E0 is that supplied before arrival of the SHS flame in the igniter. 1 MJ/m2=88.1 Btu/ft2.
Grahic Jump Location
Ignition energy E for the specimen with 10 μm radius particles (R0), with the heat loss taken as a parameter—(a) as a function of the mixture ratio μsp in the specimen; (b) as a function of the degree of dilution κsp in the specimen. The mixture ratio μig in the igniter is 0.8. 1 MJ/m2=88.1 Btu/ft2.
Grahic Jump Location
Ignition energy E for the specimen when there exists heat loss for ε=1, with the particle radius (R0)sp of the specimen taken as a parameter—(a) as a function of the mixture ratio μsp in the specimen; (b) as a function of the degree of dilution κsp in the specimen. The mixture ratio μig in the igniter is 0.8. 1 MJ/m2=88.1 Btu/ft2.
Grahic Jump Location
Ignition energy E as a function of the particle radius (R0)sp, with the heat loss taken as a parameter—(a) the mixture ratio μig in the igniter is 0.8; (b) μig=0.65.1 MJ/m2=88.1 Btu/ft2.

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