Smart control of the power generation system due to multiple-micro flames: chaos time series analysis

多微火焰发电系统智能控制：混沌时间序列分析

• 批准号: 18560194
• 负责人: KADOWAKI Satoshi
• 金额: $ 2.31万
• 依托单位: Nagaoka University of Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2006
• 资助国家: 日本
• 起止时间: 2006 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-18560194/
• 关键词: Heat Engineering; Fuel Cell; Micro Flame; Smart Control; Chaos

In this research we treated the fluctuation of methane-air premixed flames formed on multiple micro tubes. A premixed flame was individually formed on each tube when the equivalence ratio was around unity.We measured the fluctuation of brightness intensity of premixed flames and obtained the RMS and power spectrum density of the brightness fluctuation. The obtained RMS was considerably small because premixed flames were stable. The RMS slightly increased by increasing the equivalence ratio. The 1/f spectrum appeared in low frequency range, and the sharp peak in the power spectrum density was found at sufficiently large equivalence ratios.In addition, we performed the time series analysis of the brightness intensity of premixed flames. The attractor was reconstructed, and the doughnut and strange types of attractors were observed.The present results suggested that the analysis of the brightness fluctuation, i.e. the chaos time series analysis, was applicable to the diagnostics of premixed flames.

本文研究了多微管道甲烷-空气预混火焰的脉动特性。当当量比接近1时，在每根管上形成一个单独的预混火焰，测量了预混火焰亮度的波动，得到了亮度波动的均方根值和功率谱密度。由于预混火焰是稳定的，因此得到的RMS相当小。通过增加当量比，RMS略微增加。1/f谱出现在低频区，功率谱密度在足够大的当量比下出现尖峰。此外，我们还对预混火焰亮度强度进行了时间序列分析。对吸引子进行了重构，观察到了圆环形和奇异型吸引子，结果表明，亮度波动的混沌时间序列分析方法适用于预混火焰的诊断。

项目成果

Analysis on the Fluctuation of Methane Flames Formed on Multiple Small Tubes

多小管内甲烷火焰脉动分析

• 发表时间: 2007
• 作者: N;Ohkura;S;Kadowaki
• 通讯作者: Kadowaki

Time series analysis on the emission of light from methane-air lean premixed flames: diagnostics of the flame instability

甲烷-空气贫预混火焰发光的时间序列分析：火焰不稳定性诊断

• 期刊: Transactions of The Japan Society for Aeronautical and Space Sciences (Accepted)
• 作者: S;Kadowaki;N. Ohkura;S. Kadowaki and N. Ohkura
• 通讯作者: S. Kadowaki and N. Ohkura

Analysis on the fluctuation of the light emission from methane-air premixed flames

甲烷-空气预混火焰光发射波动分析

• 发表时间: 2007
• 期刊: Proceedings of ICDERS 21
• 作者: N. Hayashi;H. Yamashita;S. Kadowaki and N. Ohkura
• 通讯作者: S. Kadowaki and N. Ohkura

Time series analysis on the emission of light from methane-air lean premixed flames : diagnostics of the flame instability

甲烷-空气贫预混火焰发光的时间序列分析：火焰不稳定性的诊断

• 期刊: Transactions of The Japan Society for Aeromautical and Space Sciences submitted
• 作者: S.Kadowaki;N.Ohkura
• 通讯作者: N.Ohkura

マルチ細径円管上に形成されるメタン火炎のゆらぎの解析

多层薄圆管上形成的甲烷火焰波动分析

• 发表时间: 2007
• 作者: 大倉直樹;(門脇敏)
• 通讯作者: (門脇敏)