کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661286 1458157 2007 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Subcooled flow boiling CHF enhancement with porous surface coatings
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Subcooled flow boiling CHF enhancement with porous surface coatings
چکیده انگلیسی

The effect of micro/nanoporous inside surface coated vertical tubes on CHF was determined during water flow boiling at atmospheric pressure. CHF was measured for smooth and three different coated tubes, at mass fluxes (100–300 kg/m2 s) and two inlet subcooling temperatures (50 °C and 75 °C). Greater CHF enhancement was found with microporous coatings than with nanoporous coatings. Al2O3 microporous coatings with particle size <10 μm and coatings thickness of 50 μm showed the best CHF enhancement. Maximum increase in CHF was about 25% for microporous Al2O3. A wettability test was performed to study an increase of CHF with microporous coated surfaces.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 50, Issues 17–18, August 2007, Pages 3649–3657
نویسندگان
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