کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
659355 | 1458101 | 2011 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Bubble nucleation in microchannel flow boiling using single artificial cavity
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Microchannel (Dh ⩽ 100 μm) water flow boiling under low mass flux (G ⩽ 138.9 kg/(m2 s)) is presented to investigate the local phenomena of flow regime development and nucleating bubble growth rate. During horizontal flow, onset of nucleation, flow regime, and isolated single bubble growth and detachment from a single artificial cavity were observed and analyzed by microscopic high-speed visualization under various flow rates and wall superheat conditions. Results showed that while the predictions pertaining to inception by bubble nucleation theory match well, bubble growth rate, detachment and expansion in a microchannel differs dramatically from a macrochannel.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 25–26, December 2011, Pages 5139–5148
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 25–26, December 2011, Pages 5139–5148
نویسندگان
Jae Yong Lee, Moo-Hwan Kim, Massoud Kaviany, Sang Young Son,