کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
6758867 | 1431389 | 2018 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A numerical study of particle deposition in HTGR steam generators
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
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چکیده انگلیسی
The present study numerically investigated the graphite particle deposition in the steam generator of a pebble-bed high-temperature gas-cooled reactor (HTGR) and discussed the effect of size and velocity of particles on turbulent and thermophoretic depositions. Turbulent closure is achieved by Reynolds stress transport equations and particle motions were simulated by a discrete particle model with rebound boundary by user-defined functions to determine deposition. The results showed that turbulent deposition plays the dominant role for large particle deposition, while thermophoretic deposition is the main factor causing small graphite dust particles to deposit on the wall. It also indicated that the particles with dimensionless relaxation time near 1 are the most deposited.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Design - Volume 332, June 2018, Pages 70-78
Journal: Nuclear Engineering and Design - Volume 332, June 2018, Pages 70-78
نویسندگان
Qi Sun, Tao Chen, Wei Peng, Jie Wang, Suyuan Yu,