کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4915527 | 1427919 | 2015 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radiative intensity, no emissions, and burnout for oxygen enriched biomass combustion
ترجمه فارسی عنوان
شدت تابش، بدون انتشار، و فرسودگی برای احتراق زیست توده غنی شده با اکسیژن
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
As concern over global climate change continues, the use of biomass as a substitute for coal is one method of reducing CO2 emissions. One of the primary problems with utilizing biomass in boilers originally designed to burn coal is burnout. Biomass particles cannot be economically ground to the fine particle size typical of coal particles, creating a problem for particle burnout. The impact of oxygen injection in a swirl-stabilized burner on particle burnout and NO emissions was investigated by measuring NO and LOI, as well as flame characteristics, including flame imaging, flame intensity, and flame temperature. The results showed that when a low momentum flow of pure (>99%) oxygen is introduced into the center of a swirl stabilized biomass flame, an inverted diffusion flame is produced with oxygen in the center and volatiles on the outside of the flame. This high intensity center flame is surrounded by a lower intensity turbulent air/volatiles flame. This high temperature inner flame can heat incoming particles more rapidly than a conventional air flame improving burnout and flame stabilization without increasing effluent NO as long as the center flame does not extend into and disturb the fuel rich recirculation zone. Oxygen injection can therefore be used to improve burnout without increasing NO formation.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Proceedings of the Combustion Institute - Volume 35, Issue 3, 2015, Pages 2777-2784
Journal: Proceedings of the Combustion Institute - Volume 35, Issue 3, 2015, Pages 2777-2784
نویسندگان
Josh Thornock, Daniel Tovar, Dale R. Tree, Yuan Xue, Remi Tsiava,