کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
662304 1458142 2008 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heat transfer enhancement in dense suspensions of agitated solids. Part I: Theory
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Heat transfer enhancement in dense suspensions of agitated solids. Part I: Theory
چکیده انگلیسی

We predict heat transfer enhancement through dense homogeneous suspensions of agitated solids in conductive fluids by coupling the fluid and solid phases through a volumetric source term. The enhancement is governed by a Damköhler number demarcating an “exchange limit” where the source term dominates, and a “diffusion limit” set by the ability of agitated particles to self-diffuse. We point out effects of particle ordering on mixture conductivity and volumetric heat exchange rate, carry out thermal simulations to justify the form of these terms, and model further enhancements from gas velocity fluctuations induced by solids of high agitation.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 21–22, October 2008, Pages 5108–5118
نویسندگان
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