کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
657323 1458060 2015 15 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flow boiling heat transfer and pressure drop characteristics in expanding silicon microgap heat sink
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Flow boiling heat transfer and pressure drop characteristics in expanding silicon microgap heat sink
چکیده انگلیسی
The present flow boiling experiments are performed for deionized water mass fluxes, G = 400-1000 kg/m2 s, imposed effective heat flux qeff″ ranging from 0 W/cm2 to 80 W/cm2 for three different microgap configurations having same inlet depth 200 μm and gradually increasing exit depth 200 μm, 300 μm and 460 μm to explore expanding microgap effect on heat transfer and pressure drop performances. High speed flow visualizations are conducted simultaneously along with experiments to explore the bubble behavior in expanding microgap heat sink. The results of this study show that expanding microgap maintains a more uniform wall temperature than straight microgap heat sink and also delays dryout phase. In addition, expanding microgap of exit depth 300 μm performs best for both heat transfer and pressure drop performances among all configurations.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 82, March 2015, Pages 1-15
نویسندگان
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