کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
661188 1458149 2008 7 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Flow boiling CHF enhancement with surfactant solutions under atmospheric pressure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Flow boiling CHF enhancement with surfactant solutions under atmospheric pressure
چکیده انگلیسی

Surfactant effect on CHF (critical heat flux) was determined during water flow boiling at atmospheric pressure in closed loop filled with solution of tri-sodium phosphate (TSP, Na3PO4 · 12H2O). TSP was added to the containment sump water to adjust pH level during accident in nuclear power plants. CHF was measured for four different water surfactant solutions in vertical tubes, at different mass fluxes (100–500 kg/m2 s) and two inlet subcooling temperatures (50 °C and 75 °C). Surfactant solutions (0.05–0.2%) at low mass flux (∼100 kg/m2 s) showed the best CHF enhancement. CHF was decreased at high mass flux (500 kg/m2 s) compared to the reference plain water data. Maximum increase in CHF was about 48% as compared to the reference data. Surfactant caused a decrease in contact angle associated with an increase of CHF from surfactant addition.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 7–8, April 2008, Pages 1913–1919
نویسندگان
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