本文選題：激光誘導(dǎo)熒光(LIF) + 多環(huán)芳香烴(PAHs)　； 參考：《中國電機工程學(xué)報》2016年16期

【摘要】：應(yīng)用激光誘導(dǎo)熒光(LIF)技術(shù)對層流預(yù)混乙烷和丙烯火焰中多環(huán)芳香烴(PAHs)熒光光譜進行測量,探究PAHs在乙烷和丙烯層流預(yù)混火焰中的空間分布及當(dāng)量比對其生成的影響。實驗研究結(jié)果表明:乙烷和丙烯不同火焰高度下PAHs熒光光譜峰值位置不發(fā)生轉(zhuǎn)移,均在500nm左右;隨著火焰高度的增加,PAHs熒光光譜強度隨之增強;當(dāng)量比對火焰中PAHs的生成具有重要影響,隨著當(dāng)量比的增加,PAHs熒光光譜強度逐漸增強且在較高當(dāng)量比下變化顯著;比較乙烷和丙烯層流預(yù)混火焰中PAHs熒光光譜歸一化強度,發(fā)現(xiàn)燃料碳鏈長度以及碳鏈飽和度會對火焰中PAHs的生成產(chǎn)生重要影響。
[Abstract]:The laser induced fluorescence (LIF) technique was used to measure the fluorescence spectra of polycyclic aromatic hydrocarbons (PAHs) in laminar premixed ethane and propylene flame. The spatial distribution of PAHs in the premixed flame of ethane and propylene and the effect of equivalent ratio on its formation were investigated. The experimental results show that PAHs fluorescence peaks at different flame heights of ethane and propylene With the increase of flame height, the fluorescence intensity of PAHs increases with the increase of the flame height, and the equivalent ratio has an important influence on the formation of PAHs in the flame. With the increase of the equivalent ratio, the fluorescence intensity of the PAHs increases gradually and changes significantly at the higher equivalent ratio; PA in the laminar flow premixed flame of ethane and propylene is compared with PA The normalized intensity of Hs fluorescence spectra shows that the length of fuel carbon chain and the saturation of carbon chain will have an important effect on the formation of PAHs in flame.

【作者單位】： 動力機械與工程教育部重點實驗室(上海交通大學(xué));
【基金】：國家重點基礎(chǔ)研究發(fā)展計劃項目(973項目)(2013CB 228502)~~
【分類號】：X701

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