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研究生:許紘瑋
研究生(外文):Xu, Hong-Wei
論文名稱:觸媒穩駐燃燒之初步研究
論文名稱(外文):A Preliminary Study of Catalytically Stabilized Combustion
指導教授:趙怡欽
指導教授(外文):Zhao, Yi-Qin
學位類別:碩士
校院名稱:國立成功大學
系所名稱:航空太空工程研究所
學門:工程學門
學類:機械工程學類
論文種類:學術論文
論文出版年:1998
畢業學年度:86
語文別:中文
論文頁數:105
中文關鍵詞:觸媒穩駐燃燒觸媒穩駐燃燒觸媒燃燒燃料轉化率航空學太空學太空船
外文關鍵詞:catalyststabilized combustionCatalytically stabilized combustionCatalyt combustionFuel conversion ratioAERONAUTICSAEROSPACEAIR-SHIP
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Catalytically stabilized combustion is considered one of the
most succ- essful techniques in improving lean stability and
reducing NOx emissions tosub-10ppm level. The major objective of
this research is to conduct a prel-iminary study to investigate
the operation and performance characteristics of the
catalytically stabilized combustion using labdesigned combustor
witha honeycomb monolith catalyst and the result data will
provide useful insi-ght to the design of an improved catalytic
combustion system. Results revealed that the catalytic
combustion may be controlled by mass-transfer or kinetic
processes depending on the equivalence ratio and the residence
time resulting in different catalyst-bed outlet temperature
andfuel conversion ratio characteristics. Moreover, the gas
temperature at the outlet of catalyst bed is seen to increase
with the inlet equivalence ratioand enchances stabilization of
the downstream flame. When operated with high equivalence ratio
and long residence time, the released energy from the catalyst
bed heats up the inlet gas temperature by radiation transfer.
Fuel conversion ratio strongly depends on the equivalence ratio
and the gasvelocity. An optimal fuel conversion ratio can be
achieved by adapting theequivalence ratio. NOx emissions can be
improved significantly, however, COemissions increase with
reducing the residence time. Significant fuel sav-ing is
observed in experiment when comparing with other type of
combustor.
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