کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
4925683 | 1431405 | 2017 | 13 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
A one-dimensional semi-empirical model considering transition boiling effect for dispersed flow film boiling
ترجمه فارسی عنوان
یک مدل نیمه تجربی یک بعدی با در نظرگرفتن اثر تغییر جوش برای جوشش جریان پراکنده
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کلمات کلیدی
جریان پراکنده جوش، پست خشکشویی، تغییر جوش، حرارتی ناپایدار،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی انرژی
مهندسی انرژی و فناوری های برق
چکیده انگلیسی
The objective of this paper is to develop a one-dimensional semi-empirical model for the dispersed flow film boiling considering transition boiling effects. The proposed model consists of conservation equations, i.e., vapor mass, vapor energy, droplet mass and droplet momentum conservation, and a set of closure relations to address the interactions among wall, vapor and droplets. The results show that the transition boiling effect is of vital importance in the dispersed flow film boiling regime, since the flowing situation in the downstream would be influenced by the conditions in the upstream. In addition, the present paper, through evaluating the vapor temperature and the amount of heat transferred to droplets, investigates the thermal non-equilibrium phenomenon under different flowing conditions. Comparison of the wall temperature predictions with the 1394 experimental data in the literature, the present model ranging from system pressure of 30-140Â bar, heat flux of 204-1837Â kW/m2 and mass flux of 380-5180Â kg/m2Â s, shows very good agreement with RMS of 8.80% and standard deviation of 8.81%. Moreover, the model well depicts the thermal non-equilibrium phenomenon for the dispersed flow film boiling.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Nuclear Engineering and Design - Volume 316, May 2017, Pages 99-111
Journal: Nuclear Engineering and Design - Volume 316, May 2017, Pages 99-111
نویسندگان
Yu-Jou Wang, Chin Pan,