کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6589948 | 456851 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combustion characteristics and performance evaluation of premixed methane/air with hydrogen addition in a micro-planar combustor
ترجمه فارسی عنوان
خصوصیات احتراق و ارزیابی عملکرد متان / هوا پیش مخلوط با افزودن هیدروژن به یک سوخت مشعل میکرو فلاری
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کلمات کلیدی
میکرو احتراق افزودن هیدروژن، شبیه سازی عددی، موقعیت شعله، انرژی تابشی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
Combustion performance of premixed methane/air with hydrogen addition in a micro-planar combustor is numerically investigated, aiming to extend the application of various fuels in a micro-thermophotovoltaic system. The simulation results show that hydrogen addition has significant effect on raising methane reaction rate and flame stability. With the increase of hydrogen mass fraction, the location of the flame shifts toward the combustor inlet gradually, and the temperature gets a steady growth. For the micro-combustor with a channel height of 3Â mm, it is found that the flame of pure methane is far away from inlet, which does not meet the basic working requirement of the micro-thermophotovoltaic system. However, the combustor wall temperature will be significantly improved when a small amount of hydrogen is added into the mixture, which is mainly due to the extension of flammability range. Along with the increase of H2 addition ratio, both the total radiant energy and the proportion of usable radiant energy to total input chemical energy increase dramatically, which brings a significant improving of electricity output and system efficiency.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Chemical Engineering Science - Volume 131, 28 July 2015, Pages 235-242
Journal: Chemical Engineering Science - Volume 131, 28 July 2015, Pages 235-242
نویسندگان
Aikun Tang, Yiming Xu, Jianfeng Pan, Wenming Yang, Dongyue Jiang, Qingbo Lu,