Papers - Kobayashi, Hiromichi

MHD(電磁流体力学)発電機内におけるプラズマ流の3次元数値シミュレーション

小林 宏充

慶應義塾大学日吉紀要 (慶応義塾大学出版会)   ( 28 ) 39-46 2000.09

Research paper (bulletin of university, research institution), Single Work

Feasibility Study on Frozen Inert Gas Plasma MHD Generator

Hiromichi Kobayashi, Yoshihiro Okuno

IEEE Transactions on Plasma Science (The Institute of Electrical and Electronics Engineers)  28 ( 4 ) 1296-1302 2000.08

Research paper (scientific journal), Joint Work, Accepted

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The feasibility of an MHD generator with frozen inert gas plasma is examined numerically. The frozen inert gas plasma is produced by pre-ionizing helium of inert gas without alkali metal seed at the generator inlet. Since the three-body recombination coefficient of helium ions is low at
the electron temperature more than 5000K, the ionization degree of inert gas is kept almost constant in the entire region of the generator channel and the relation between the electron temperature and the electron number density deviates from the Saha equilibrium. In a small scale disk shaped generator, the enthalpy extraction ratio of 22.7% and the isentropic efficiency of 54.8% are obtainable for the load resistance of 3.0Omega and magnetic flux density of 4T under the pre-ionization degree of 4.79x10^{-5}. The auxiliary power to sustain the pre-ionized plasma corresponds to about 2% of the thermal input. For high magnetic flux density, the generator performance can be improved as well as a conventional seeded plasma MHD generator.

CIP法によるMHD発電機内プラズマ・流体の３次元シミュレーション

小林 宏充，奥野 喜裕，椛島 成治

数値流体力学会誌 (数値流体力学会)  8 ( 3 ) 130-136 2000.04

Research paper (scientific journal), Joint Work

高温空気を用いた石炭・廃棄物ガス化発電システム

小林 宏充，吉川 邦夫，塩田 進

日本機械学会論文集Ｂ (日本機械学会)  66 ( 641 ) 235-240 2000.01

Research paper (scientific journal), Joint Work, Accepted

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A new concept of gasification power generation systems fueled by coal, RDF and various kinds of wastes using high temperature air is proposed. Cycle analyses of these IGCC and boiler systems are done. The calculation shows that heating value of syngas almost doubles when we increase the gasification air temperature from 25C to 1000C. More than 45% thermal efficiency is obtainable both for coal and RDF by employing the new high temperature air blown IGCC system. This IGCC system is applicable to various wastes including low grade wastes such as sludge.

亜音速非平衡ディスク形MHD発電機内の流れと発電性能

名原 啓博，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  119 ( 8/9 ) 931-936 1999.08

Research paper (scientific journal), Joint Work, Accepted

入口スワールをもつ非平衡ディスク形MHD発電機内プラズマ・流体の三次元構造

清水 和弥，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  119 ( 7 ) 828-833 1999.07

Research paper (scientific journal), Joint Work, Accepted

Three-Dimensional Simulation of Plasma and Flow in a Disk MHD Generator by Using CIP Method

Hiromichi Kobayashi, Yoshihiro Okuno, Shigeharu Kabashima

Computational Fluid Dynamics JOURNAL (Intern'l Society of CFD)  8 ( 1 ) 50-55 1999.04

Research paper (scientific journal), Joint Work, Accepted

熱入力100MW非平衡ディスク形MHD発電機におけるプラズマ・流体の三次元構造

清水 和弥，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  119 ( 1 ) 103-108 1999.01

Research paper (scientific journal), Joint Work, Accepted

非平衡ディスク形MHD発電機における放電構造と発電性能に及ぼす背圧の影響

藤野 貴康，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  119 ( 1 ) 97-102 1999.01

Research paper (scientific journal), Joint Work, Accepted

Three-Dimensional Structures of MHD Flow in a Disk Generator

Hiromichi Kobayashi, Yoshihiro Okuno, Shigeharu Kabashima

IEEE Transactions on Plasma Science (The Institute of Electrical and Electronics Engineers)  26 ( 5 ) 1526-1531 1998.10

Research paper (scientific journal), Joint Work, Accepted

亜音速ディスク形CCMHD発電機の部分負荷運転特性

名原 啓博，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  118 ( 9 ) 1041-1046 1998.09

Research paper (scientific journal), Joint Work, Accepted

非平衡MHD発電におけるプラズマ擾乱の三次元挙動

村上 貴裕，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  118 ( 5 ) 587-592 1998.05

Research paper (scientific journal), Joint Work, Accepted

亜音速ディスク形CCMHD発電機の電圧－電流特性

小林 宏充，桑子 奈津子，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  118 ( 3 ) 302-307 1998.03

Research paper (scientific journal), Joint Work, Accepted

空間的なシード不均一下での非平衡ディスク形MHD発電機内プラズマの挙動

村上 貴裕，小林 宏充，奥野 喜裕，椛島 成治

電気学会論文誌Ｂ (電気学会)  117 ( 5 ) 665-670 1997.05

Research paper (scientific journal), Joint Work, Accepted

Three-Dimensional Simulation of Nonequilibrium Seeded Plasma in Closed Cycle Disk MHD Generator

Hiromichi Kobayashi, Yoshihiro Okuno, Shigeharu Kabashima

IEEE Transactions on Plasma Science (The Institute of Electrical and Electronics Engineers)  25 ( 2 ) 380-385 1997.02

Research paper (scientific journal), Joint Work, Accepted

ディスク形ＣＣＭＨＤ発電機の性能に与える入口圧力変動の影響

Kobayashi Hiromicih, Okuno Yoshihiro, Kabashima Shigeharu

電気学会論文誌Ｂ (電気学会)  116 ( 6 ) 718-723 1996.06

Research paper (scientific journal), Joint Work, Accepted

非平衡ディスク形ＭＨＤ発電機における分割負荷による性能改善

Kobayashi Hiromichi, Okuno Yoshihiro, Kabashima Shigeharu

電気学会論文誌Ｂ (電気学会)  115 ( 9 ) 1104-1109 1995.09

Research paper (scientific journal), Joint Work, Accepted