کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
655738 1457665 2009 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Surface tension-driven flow in wickless heat pipes with self-rewetting fluids
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Surface tension-driven flow in wickless heat pipes with self-rewetting fluids
چکیده انگلیسی

Surface tension-driven effects in wickless heat pipes with aqueous solutions of long-chain alcohols are investigated. Flow visualizations and numerical simulation of bubbles behaviour and boiling pattern in transparent capillaries show the potential advantages of “self-rewetting” fluids, i.e. liquid solutions with a non-linear dependence of the surface tension with temperature. Surface tension measurements at different temperatures have been carried out also for a number of ternary aqueous solutions with relatively low freezing points. Some of them interestingly exhibit the same anomalous positive surface tension gradient with temperature as binary self-rewetting solutions. These results may open new horizons toward the development of more efficient heat transfer devices for different applications.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Fluid Flow - Volume 30, Issue 2, April 2009, Pages 380–388
نویسندگان
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