کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
6633841 461091 2016 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Numerical and experimental analysis of the effect of adding water electrolysis products on the laminar burning velocity and stability of lean premixed methane/air flames at sub-atmospheric pressures
ترجمه فارسی عنوان
تحلیل عددی و آزمایشگاهی اثر افزودن محصولات الکترولیز آب بر سرعت سوختگی لایه ای و پایداری شعله های متان / هوا قبل از مخلوط آفتاب در فشارهای زیر اتمسفر
کلمات کلیدی
سرعت سوزش لامینار، محصولات الکترولیز بی ثباتی، هیدروژن، اکسیژن،
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی
This paper presents a study of CH4/Air/H2/O2 premixed laminar flames using a ratio of H2/O2 equal to 2/1. This gas mixture represents the products of the electrolysis of water. To date, only numerical analysis has been carried out on these kinds of blends and using H2/O2 percentages of only up to 10% by volume. Furthermore, there have been no reports of experimental analysis or possible flame instabilities associated with the enrichment of the mix with H2/O2. In this study, the effect of adding water electrolysis products on the laminar burning velocity and stability of lean premixed methane/air flames is studied for different percentages of H2/O2 (10 and 25) in the lean combustion regime, which is relevant for most engineering applications. The results show that a higher addition of H2/O2 to methane increases the laminar burning velocity. In particular, at Φ = 0.75, intrinsic instabilities are observed for mixtures with 25% of H2/O2 in methane. With the addition of H2/O2, the laminar flame thickness decreases and the growth rate increases. Hence, the addition of H2/O2 to a premixed natural gas flame enhances the hydrodynamic instabilities.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 180, 15 September 2016, Pages 565-573
نویسندگان
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