| Project/Area Number |
16560655
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Properties in chemical engineering process/Transfer operation/Unit operation
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| Research Institution | Nagoya University |
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Principal Investigator |
KOBAYASHI Noriyuki Nagoya University, EcoTopia Science Institute, Associate professor, エコトピア科学研究所, 助教授 (90242883)
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| Co-Investigator(Kenkyū-buntansha) |
WATANABE Fujio Nagoya University, School of Engineering, Assistant professor, 工学研究科, 助手 (70109312)
KUBOTA Mitsuhiro Nagoya University, School of Engineering, Assistant professor, 工学研究科, 助手 (60345931)
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| Project Period (FY) |
2004 – 2005
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| Project Status |
Completed (Fiscal Year 2005)
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| Budget Amount *help |
¥3,700,000 (Direct Cost: ¥3,700,000)
Fiscal Year 2005: ¥1,500,000 (Direct Cost: ¥1,500,000)
Fiscal Year 2004: ¥2,200,000 (Direct Cost: ¥2,200,000)
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| Keywords | oxygen / combustion / rf magnetic field / plasma assistance / electric energy / inductive currency |
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| Research Abstract |
High temperature combustion field that surpasses 3,000 K in gas temperature are generated by pure oxygen combustion, and are promised to be revolutionary energy conversion technology and material conversion technology. This high temperature combustion field will be utilized in next generation power stations and high temperature industrial furnace due to its good thermal efficiency, high temperature and nitrogen free processes. However, the combustion temperature is so high that the furnace wall may be fatally damaged. In addition, it is hardly difficult to control the fluid and chemical species concentration of this field because of rapid chemical reactions. In such high temperature field, the combustion flame has weakly electric properties. This flame can be considered as weakly-ionized plasma fluid. We have focused attention on this property to control this combustion field by electromagnetic force. We called this combustion "plasma-assisted combustion".
We developed a new device appl
… More
ying electromagnetic force to combustion field. In this new combustion control device, we make non-equilibrium plasma induced by rf inductive current in the CH_4-O_2 flame. The rf inductive current is introduced to the flame through the coil made of cupper tube with water cooling. The generation of non-equilibrium plasma raised electric conductivity of CH_4-O_2 flame. The effect of the electromagnetic Lorentz force in this flame was larger than that in the normal CH_4-O_2 flame. Since the flame is constricted by the Lorentz force, we will be able to detach the high temperature flame from the furnace wall by its effect. In addition, we may control combustion gas composition because it changes by the generation of the non-equilibrium plasma.
In this paper, we investigated experimentally the possibility that the flame can adsorb rf power. Besides we studied the fundamental such properties of CH_4-O_2 flame as electron density or electron temperature by using double probe method and spectroscopic measurement. Less
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