會議論文

標題 Investigation of the rich limit of operation of Helmholtz type pulse combustor
學年 82
學期 1
發表日期 1994/03/19
作品名稱 Investigation of the rich limit of operation of Helmholtz type pulse combustor
作品名稱(其他語言) 赫姆何茲式脈動燃燒器操作富油點之研究
著者 湯敬民
作品所屬單位 淡江大學航空太空工程學系
出版者
會議名稱 中華民國第四屆燃燒科技應用研討會=The Fourth National Conference on Combustion Science and Technology
會議地點 新竹市, 臺灣
摘要 The work presented in this paper is part of an investigation into the operating characteristics of natural gas fired, valved, Helmholtz type, pulse combustors. This article presents some experimental results that describes the controlling mechanisms which control the existence of a rich limit of operation of the pulse combustor. Acoustic pressure oscillations and the global heat release rates were measured to determine how they and their correlation determine the performance of the pulse combustor. Experimental results indicate that the combustion induced driving force near the lean limit is barely larger than the damping of the system. This is due to the relatively large phase difference between the heat release and pressure oscillations under these operating conditions. Near the rich limit (i.e., near .phi.=1), on the other hand, pressure and heat release fluctuations are nearly in phase. Therefore, the driving force is relatively high. Nevertheless, a rich limit of operation is reached. The investigation has shown that this limit is reached because when operating near the stoichiometric ratio, the rapidly entering air jet quenches the ignition source (i.e. reacting gas pockets) left over from the previous cycle.
關鍵字
語言 中文
收錄於
會議性質 國內
校內研討會地點
研討會時間 19940319~19940319
通訊作者 清華大學; 中山科學研究院二所; 中華民國燃燒學會
國別 中華民國
公開徵稿 Y
出版型式
出處 中華民國第四屆燃燒科技應用研討會論文集=Proceedings of the Fourth National Conference on Combustion Science and; Technology, pp.1-5