کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
206377 461181 2012 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Prediction of ash slagging propensity in a pulverized coal combustion furnace
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
پیش نمایش صفحه اول مقاله
Prediction of ash slagging propensity in a pulverized coal combustion furnace
چکیده انگلیسی

The slagging of heat transfer surfaces during the combustion of pulverized coal in power stations is a major problem as power generators strive to improve the efficiency of their plants. In this paper, a numerical model to predict ash deposition rates in boilers has been developed. The deposition model is based on the sticking tendency of ash particles on impaction on boiler walls. A numerical slagging index (NSI) that correlates with the practical performance of different coals has also been developed. The index is based on ash viscosity, ash fusibility and the ash loading. Experimental data from the Australian Coal Industries Research Laboratories (ACIRL) furnace have been used to validate the models. The predicted results from the ash deposition model on four different coals are in good agreement with the experimental measurements, and the new slagging index has successfully ranked the investigated coals according to their field performance. In general, the predicted results from both the ash deposition model and the new NSI are in good agreement with the experimental data.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel - Volume 101, November 2012, Pages 171–178
نویسندگان
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