Cold Flow Simulation of a ۳۰ kWth CFB Riser with CPFD
عنوان مقاله: Cold Flow Simulation of a ۳۰ kWth CFB Riser with CPFD
شناسه ملی مقاله: JR_JAFM-13-2_018
منتشر شده در در سال 1398
شناسه ملی مقاله: JR_JAFM-13-2_018
منتشر شده در در سال 1398
مشخصات نویسندگان مقاله:
D. Gündüz Raheem - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
B. Yılmaz - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
S. Özdoğan - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
خلاصه مقاله:
D. Gündüz Raheem - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
B. Yılmaz - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
S. Özdoğan - Marmara University, Institute of Pure and Applied Sciences, Kadikoy, Istanbul, ۳۴۷۲۲, Turkey
A ۳۰ kWth Circulating fluidized bed (CFB) combustor is experimentally and numerically investigated under cold flow conditions. Barracuda software based on Computational Particle Fluid Dynamics (CPFD) method is utilized for simulations. The influences of bed inventory and drag model on flow hydrodynamics were investigated considering pressure and velocity profiles and particle concentration. Two advanced drag models, namely Energy minimization multi-scale (EMMS) and Wen-Yu/Ergun were selected for this study. The simulations were performed with initial bed material masses of ۳.۷۹, ۴.۵۵ and ۵.۲۰ kg corresponding to ۲.۵, ۳ and ۳.۵ diameters height of riser, respectively. With increasing bed inventory pressure drops and solid concentration increase. The axial particle velocities slightly change with bed inventory. The comparison of simulation results with experimental measurements was resulted in good agreement (
کلمات کلیدی: CFB, Cold flow, CPFD, Experimental, Drag model
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/1369544/