Numerical Analysis of Diffusion Combustion of Coal-Gasified Fuel : Effect of Pressure on NO_x Formation
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概要
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Numerical computations are made of laminar jet diffusion flames taking into account detailed chemical kinetics and multicomponent diffusion and focusing on the effect of pressure and the amounts of hydrocarbon contained in the fuel on the NO_x formation processes and charcteristics. In order to clearly distinguish between thermal NO_x and fuel NO_x originating from N_2 in the air and fuel N, respectively, and to elucidate the effects of interaction between thermal No_x and fuel No_x together with N-containing species, N-containing species originating from N_2 in air and fuel N and their reactions are distinguished in the computations. It was shown that(1)higher pressure results in a decrease in the amount of fuel NO formed and a increase in the amount of thermal NO formed, (2)the tendency of the decrease of the conversion rate of ammonia to fuel NO for high-pressure flames becomes more apparent when the fuel contains greater amounts of methane, (3)the effect of the destruction of thermal NO by N-containing species becomes more apparent for high-pressure flames as thermal NO concentration becomes high.
- 一般社団法人日本機械学会の論文
- 1997-08-15
著者
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XU Zhe
Haskin Shellfish Research Laboratory, Institute of Marine and Coastal Sciences, Rutgers University
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Sato Mikio
Thermal Engineering Department Central Research Institute Of Electric Power Industry
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Xu Zhe
Haskin Shellfish Research Laboratory Institute Of Marine And Coastal Sciences Rutgers University
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Xu Zhe
Thermofluid Dynamics Division National Aerospace Laboratory
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Takagi Toshimi
Department Of Mechanophysics Engineering Osaka University
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Takagi Toshimi
Department Of Mechanical Engineering Faculty Of Engineering Osaka Sangyo University
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Takagi Toshimi
Department Of Mechanical Engineering Osaka University
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HASEGAWA Takeharu
Thermal Engineering Department, Central Research Institute of Electric Power Industry
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Hasegawa Takeharu
Thermal Engineering Department Central Research Institute Of Electric Power Industry
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Takagi Toshimi
Department Of Mechanical Engineering Alty Of Engineering. Osaka University
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