کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
654435 | 885244 | 2008 | 5 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
CFD based evaluation of polymer particles heat transfer coefficient in gas phase polymerization reactors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
In this work, computational fluid dynamics (CFD) has been employed to compute convection heat transfer coefficient (h) that is the key parameter in calculation of heat transfer rate between particles and fluids in an ethylene polymerization fluidized bed reactor. In addition, the effects of various parameters such as free stream fluid velocity, particles size, and particles interactions with different configurations on heat transfer coefficient were studied. Simulation results are in agreement with common engineering knowledge of the process. The results also indicate that particle interactions, particle size and fluid velocity have more significant impacts on h.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Communications in Heat and Mass Transfer - Volume 35, Issue 10, December 2008, Pages 1375–1379
Journal: International Communications in Heat and Mass Transfer - Volume 35, Issue 10, December 2008, Pages 1375–1379
نویسندگان
Mohammad A. Dehnavi, Shahrokh Shahhosseini, S. Hassan Hashemabadi, S. Mehdi Ghafelebashi,