1996 Fiscal Year Final Research Report Summary
Continuous/Intermittent Combustion of Liquid Fuel in Porous Body and Innovative Application to Heat Engines
| Project/Area Number |
06508002
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| Research Category |
Grant-in-Aid for Scientific Research (A)
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| Allocation Type | Single-year Grants |
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| Section | 試験 |
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| Research Field |
エネルギー学一般・原子力学
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| Research Institution | Tokyo Institute of Technology |
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Principal Investigator |
ECHIGO Ryozo Tokyo Institute of Technology, Faculty of Engineering, Prof., 工学部, 教授 (70037737)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEDA Toshikazu Isuzu Advanced Eng.Center., , Res.Eng., 材料研究部, 主席研究員
KAMIUTO Kouichi O-ita, Univ., Fac.Eng., Assoc., 工学部, 教授 (20038029)
TADA Shigeru Tokyo Institute of Technology, Faculty of Engineering, Res.Assoc., 工学部, 助手 (70251650)
KOBAYASHI Kenichi Tokyo Institute of Technology, Faculty of Engineering, Res.Assoc., 工学部, 助手 (10242273)
YOSHIDA Hideo Tokyo Institute of Technology, Faculty of Engineering, Assoc.Prof., 工学部, 助教授 (50166964)
TAKANAMI Katsuji Isuzu Advanced Eng.Center., , Exec.Dirct.
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| Project Period (FY) |
1994 – 1996
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| Keywords | porous body / condensation-evaporation processes / diffusion combustion / flammable limit / reciprocating flow |
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| Research Abstract |
The recent progresses on combustion researches in porous media have brought about effective utilization of energy as well as remarkable reduction of exhaust pollutants. However, these studies have all been more or less limited to the homogeneous premixture combustion of gaseous fuel. In this study liquid droplets combustion is developed to investigate detaild combustion processes such as heat transfer mechanism, evaporation, diffusion and subsequent combustion.
In first year experimental and theoretical researches have been executed to extend a flammable limit of extraordinary lean mixture and to mitigate the energy input for self-sustain combustion in the porous system of reciprocating flow regime.
In second fiscal year standardized basic experimental work has been conducted in O-ita University on the diffusion combustion prior to the other related researches through the world. In consequence, some important prominent features have been elucidated the effects of porous body on the extremely low NO_x emission and also on the combustion enhancement for low quality combustible materials.
In last fiscal year a new concept has been proposed to realize the constant temperature expansion combustion in reciprocating engines and/or gas turbines which results in higher energy conversion ratio to mechanical power and extended discussions on the thermodynamic cycle.
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