کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
9692896 | 1458852 | 2005 | 11 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Radiation heat transfer in circulating fluidized bed combustors
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
![عکس صفحه اول مقاله: Radiation heat transfer in circulating fluidized bed combustors Radiation heat transfer in circulating fluidized bed combustors](/preview/png/9692896.png)
چکیده انگلیسی
A new model for predicting radiation heat transfer in circulating fluidized bed combustors is proposed. The model assumes two phase structure, the flow at the wall dominated by streamers of clusters traveling mostly downward, interspersed with periods where there is upwards flow of a dilute suspension. Also, the model assumes the intensity distribution to be semi-isotropic in the forward and backward direction. The predictions are in good agreement with the experimental results from the literature. Finally, a parametric study is performed to show the effect of different bed parameters on radiative heat transfer. The results indicate that suspension temperature, wall temperature, wall emissivity, particle emissivity, and suspension density have significant influence on the radiation heat transfer coefficient.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Thermal Sciences - Volume 44, Issue 4, April 2005, Pages 399-409
Journal: International Journal of Thermal Sciences - Volume 44, Issue 4, April 2005, Pages 399-409
نویسندگان
Morgan Eriksson, Mohammad R. Golriz,