کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
658749 | 1458089 | 2012 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Experimental study on static flash evaporation of aqueous NaCl solution
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
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چکیده انگلیسی
Experimental study on static flash of aqueous NaCl solution was present. Initial waterfilm concentration and superheat ranged between 0 and 0.15 (mass fraction), between 1.7 and 53.9Â K respectively. Influence of factors, such as initial waterfilm concentration, initial waterfilm height and superheat on thermo-properties during flash, such as waterfilm temperature, non-equilibrium fraction (NEF), and volumetric heat transfer coefficient were analyzed and compared with that on flash of pure water. Results suggested that higher initial waterfilm concentration suppressed liquid-vapor phase change, reduced the rate of flash evaporating and weakened the intensity of boiling heat transfer. But the influences of superheat and initial waterfilm height on flash of aqueous NaCl solution were same as that on pure water. At last, NEF was fitted with relative error between â49.30% and 55.2%, upon which volumetric heat transfer coefficient could be calculated with relative error varying between â12.6% and 18.8%.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 55, Issues 23â24, November 2012, Pages 7199-7206
Journal: International Journal of Heat and Mass Transfer - Volume 55, Issues 23â24, November 2012, Pages 7199-7206
نویسندگان
Zhang Dan, Chong Daotong, Yan Junjie, Zhao Bingchao,