کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4980069 | 1453039 | 2017 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Inert gas influence on the laminar burning velocity of methane-air mixtures
ترجمه فارسی عنوان
تاثیر گاز بی اثر بر سرعت سوختن هوا در مخلوط متان-هوا
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کلمات کلیدی
سرعت سوزش لامینار، متان، افزودنی بی اثر، پارامترهای کلی فعال سازی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
بهداشت و امنیت شیمی
چکیده انگلیسی
Flame propagation was studied in methane-air-inert (He, Ar, N2 or CO2) mixtures with various initial pressures and compositions using pressure-time records obtained in a spherical vessel with central ignition. The laminar burning velocities of CH4-air and CH4-air-inert mixtures obtained from experimental p(t) records of the early stage of combustion were compared with literature data and with those obtained from numerical modeling of 1D flames. The overall reaction orders of methane oxidation were determined from the baric coefficients of the laminar burning velocities determined from power-law equations. For all mixtures, the adiabatic flames temperatures were computed, assuming that the chemical equilibrium is reached in the flame front. The overall activation energy for the propagation stage of the combustion process was determined from the temperature dependence of the laminar burning velocity.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of Hazardous Materials - Volume 321, 5 January 2017, Pages 440-448
Journal: Journal of Hazardous Materials - Volume 321, 5 January 2017, Pages 440-448
نویسندگان
Maria Mitu, Venera Giurcan, Domnina Razus, Dumitru Oancea,