کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6656521 | 1425375 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Combustion measurements of type-1 pulverized coal flames operating under oxy-fired conditions
ترجمه فارسی عنوان
اندازه گیری های احتراق از شعله های ذغال سنگ پودر نوع 1 تحت شرایط احتراق اکسین
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کلمات کلیدی
IRZInternal recirculation zoneRTDCCSANSIVDISTP - PTSGum - آدامسresistance temperature detector - آشکارساز دمای مقاومتCombustion - احتراقPulverized coal combustion - احتراق زغال سنگ پالم شدهDIN - ازEuropean standard - استاندارد اروپاییOxy-fuel - اکسی سوختISO - ایزوCarbon capture and storage - جذب و ذخیره کربنGuide to the expression of uncertainty in measurement - راهنمای بیان عدم قطعیت در اندازه گیریInternational Organization for Standardization - سازمان بین المللی استاندارد سازیLignite - لیگنیت
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
مهندسی شیمی (عمومی)
چکیده انگلیسی
The present study addresses the impact of oxy-fired conditions on type-1 flames generated by an oxidant-staged burner operating with pre-dried lignite and applying wet flue-gas recirculation. Investigations were carried out in a laboratory facility where the combustion takes place in a furnace with a rated capacity of 0.40Â MWth. In-flame measurements were performed for oxy-fired conditions operating at three levels of secondary swirl number (1.15, 1.65, and 2.05), while overall O2 fraction upstream of the burner in oxy-firing was kept at 31Â vol%. One air-fired condition at 1.65 secondary swirl number was also investigated. Measurements of local gas temperature and gas species concentrations were performed using standard water-cooled probes with focus on the near burner region. Results showed evidence of radial flame stratification consistent with gradual O2 admixing to the central fuel jet. Lower temperatures on the flame axis were obtained under oxy-fired condition. In the same region, as a result of CO2 dissociation and/or gasification reactions by water vapor and CO2, higher CO concentrations were also monitored, which contributed to lower temperatures. Experimental data also suggested great potential for NO abatement through flame stratification due to type-1 flame pattern.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 171, March 2018, Pages 232-247
Journal: Fuel Processing Technology - Volume 171, March 2018, Pages 232-247
نویسندگان
Rodrigo Corrêa da Silva, Hans Joachim Krautz,