Effect of Scaling Criteria on Performance of a MILD Furnace
محل انتشار: سی و یکمین همایش سالانه بین المللی مهندسی مکانیک ایران و نهمین همایش صنعت نیروگاهی ایران
سال انتشار: 1402
نوع سند: مقاله کنفرانسی
زبان: انگلیسی
مشاهده: 130
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شناسه ملی سند علمی:
ISME31_406
تاریخ نمایه سازی: 10 خرداد 1402
چکیده مقاله:
In this study, three scaling criteria including CV, CRT and CK for a laboratory MILD furnace were investigated and the important parameters of MILD combustion including temperature distribution, velocity distribution, flue gas recirculation rate, CO and NOx pollutants for these criteria were compared with a laboratory furnace with internal flue gas recirculation and air preheating as a base case. To determine the distribution of velocity and temperature, the CV and CRT criteria have a better match with the base case than the CK criteria. On the other hand, the pollutants of scale-up furnaces do not match enough with the base case for any criteria, and for the CK and CRT criteria, the amount of pollutants is lower than the base case, especially in the CK criteria. However, because the recirculation rate and temperature distribution are two essential factors in creating MILD combustions; The use of the CRT criteria is suggested for an industrial MILD combustion furnace due to the uniformity in temperature distribution, velocity, flue gas recirculation rate and lower CO and NOx pollutants compared to the laboratory scale. The values of CO and NOx decrease by ۰.۰۵۹ and ۰.۲۵ mg/kWh, respectively, in the CRT criteria compared to the base case.
کلیدواژه ها:
نویسندگان
Fateme Eskandari
Mechanical Engineering Department, Tarbiat Modares University, Tehran;
Mohammad Zabetian Targhi
Mechanical Engineering Department, Tarbiat Modares University, Tehran;