کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660105 1458107 2011 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Interfacial heat transfer of condensing bubble in subcooled boiling flow at low pressure
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Interfacial heat transfer of condensing bubble in subcooled boiling flow at low pressure
چکیده انگلیسی
The interfacial heat transfer coefficient is an important parameter for the analysis of multi-phase flow. In subcooled boiling flow, bubbles condense through the interface of phases and the interfacial heat transfer determines the condensation rate which affects the two-phase parameters such as void fraction and local liquid temperature. Thus, the present experiments are conducted to correlate the interfacial heat transfer coefficient at low pressure in the subcooled boiling flow. The local liquid temperature is measured by microthermocouple and the bubble condensation rate is estimated by orthogonal, two-image processing. The condensate Nusselt number, which is a function of bubble Reynolds number, local liquid Prandtl number, and local Jacob number, is obtained from the experimental results. The bubble history is derived from the newly proposed correlation and the condensate Nusselt number is compared with the previous models.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 54, Issues 13–14, June 2011, Pages 2962-2974
نویسندگان
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