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International Journal of Energy for a Clean Environment
SJR: 0.195 SNIP: 0.659 CiteScore™: 1.2

ISSN Imprimer: 2150-3621
ISSN En ligne: 2150-363X

International Journal of Energy for a Clean Environment

Précédemment connu sous le nom Clean Air: International Journal on Energy for a Clean Environment

DOI: 10.1615/InterJEnerCleanEnv.v5.i2.20
20 pages

EFFECT OF A MAGNETIC FIELD ON DIFFUSION FLAMES, CO2 AND NOx GAS STREAMS

Hidenori Tanaka
The National Defense Academy, Department of Applied Physics, 1-10-20, Hashirimizu, Yokosuka, 239 -8686 JAPAN
Atsushi Saima
Department of Mechanical Engineering, College of Science and Technology, Nihon University, 1-8, Kanda Surugadai, Chiyodaku, Tokyo 101-8308, Japan

RÉSUMÉ

The pressure effect on diffusion flames, CO2 gas flow, and diluted NOx gas flow were investigated in a magnetic field. The flame deformation and the inclination of the flame axis were examined. Magnetic field strength was changed from 0 up to 10.35 × 105 A/m. Experiments in the flame deformation were carried out at two positions in the field, and those of the inclination were carried out in the neighborhood of the pole edge. The deformation of flames of these gases and the inclination were attributed to paramagnetic (air) and diamagnetic properties (flame, CO2 gas, and NOx gas). At the inflection point of the flame axis, the inclination angle θ of the flame axis was decided by two forces, the magnetic force F and the buoyant force FB. Experimental results of the inclination of the flame axis showed good agreement with the theoretical analysis. The jet path of CO2 gas was numerically investigated. The original path changed as the magnetic field was applied. The position of the peak of the velocity on the cross section of the jet shifted to the side of the small magnetic field strength. In the stream of NOx, the path approached to the pole piece. These results were proposed as a cleaning technology in the handling of combustion gas and exhaust gas.


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