کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4764372 | 1423557 | 2017 | 12 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Investigation on the oxidation chemistry of methanol in laminar premixed flames
ترجمه فارسی عنوان
بررسی شیمی اکسیداسیون متانول در شعله های پیش ساخته مخلوط
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
In this work, oxidation chemistry of methanol was investigated in laminar premixed flames. Laminar burning velocities of methanol/air mixtures at 423Â K and 1-10Â atm were measured in a spherical combustion vessel, extending the range of equivalence ratio up to 2.1. A stoichiometric premixed flat flame of methanol/O2/Ar at 0.04Â atm was also conducted using synchrotron VUV photoionization mass spectrometry (SVUV-PIMS) to obtain more detailed kinetic information. Particularly, fuel-derived radicals including methoxy radical and hydroxymethyl radical were observed, while formaldehyde (CH2O) and formic acid (HOCHO) were identified as the abundantly produced intermediates in methanol flame. A methanol model was developed and validated against the experimental data obtained in this work, as well as in literature. In the predictions of laminar burning velocities, HO2 radical plays an important role under very rich conditions. Besides, the measurement of formaldehyde and formic acid in methanol flame is helpful to constrain the rate constant of CH2OHÂ +Â O2Â =Â CH2OÂ +Â HO2, which presents large uncertainties at high temperatures.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Combustion and Flame - Volume 180, June 2017, Pages 20-31
Journal: Combustion and Flame - Volume 180, June 2017, Pages 20-31
نویسندگان
Zhang Xiaoyuan, Wang Guoqing, Zou Jiabiao, Li Yuyang, Li Wei, Li Tianyu, Jin Hanfeng, Zhou Zhongyue, Lee Yin-Yu,