کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
815790 906419 2014 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental studies on the effect of water contaminants in convective boiling heat transfer
ترجمه فارسی عنوان
مطالعات تجربی در مورد اثر آلاینده های آب در انتقال حرارت جوش کنترلی
کلمات کلیدی
آلاینده های آبی، انتقال حرارت جوش حرارتی، یک فاز زیر خنک کننده، حلقه عمودی،
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
چکیده انگلیسی
Experimental investigations on the influences of different contaminants to deionized water have been conducted under the sub-cooled flow boiling heat transfer inside the vertical annulus. Many experiments have been performed to investigate the influence of different operating parameters on the flow boiling heat transfer coefficient in the upward flow of contaminated water under the atmospheric pressure. The experimental apparatus provides the particular conditions to investigate the influence of heat flux (up to 132 kW/m2), flow rate (1.5-3.5 l/min), sub-cooling level (Max. 30 °C), and concentration of contaminants (1-5% by volume). According to the results, with increasing the heat flux and flow rate, the flow boiling heat transfer coefficient and rate of bubble formation significantly increase. Results also demonstrated that adding contaminants to the deionized water causes the flow boiling heat transfer coefficient to be deteriorated. Likewise, sub-cooling level may only influence on the onset of nucleate boiling and heat flux corresponding to beginning of nucleate boiling phenomenon which is called inception heat flux.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Ain Shams Engineering Journal - Volume 5, Issue 2, June 2014, Pages 553-568
نویسندگان
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