کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
209555 461673 2015 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Drying kinetics of coarse lignite particles in a fixed bed
ترجمه فارسی عنوان
سینتیک خشک کردن ذرات لجن درشت در بستر ثابت
کلمات کلیدی
سنگ قیمتی، سینتیک خشک کردن، تخت ثابت مدل سازی، بوقلمون
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی مهندسی شیمی (عمومی)
چکیده انگلیسی


• Experimental studies for a Turkish lignite in a fixed bed dryer were carried out.
• Twelve thin-layer drying models were evaluated.
• Drying temperature, air velocity, sample height and sample size were examined.
• Wang&Singh model best fitted the results differently from the literature.

In this study, experimental works for a Turkish lignite in a fixed bed dryer were carried out. Drying experiments were carried out at 70, 100 and 130 °C drying air temperatures, 0.4, 1.7 and 1.1 m/s drying air velocities, 80, 130 and 150 mm sample heights and 20, 35 and 50 mm sample sizes. Suitability of twelve thin-layer drying models in describing the drying kinetics of lignite was evaluated by using statistical analyses. The results show that Wang&Singh model is the best model describing the drying behavior of coarse lignite particles in a fixed bed dryer, which is different from the literature. Additionally, the effects of drying parameters on model coefficients were studied by multiple regression analysis. Finally, apparent diffusion coefficient range was presented.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Fuel Processing Technology - Volume 130, February 2015, Pages 208–213
نویسندگان
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