کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
9691681 1458198 2005 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of pool subcooling on boiling heat transfer in a vertical annulus with closed bottom
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Effects of pool subcooling on boiling heat transfer in a vertical annulus with closed bottom
چکیده انگلیسی
Effects of inlet subcooling on pool boiling heat transfer in a vertical annulus with closed bottom have been studied experimentally. For the test, a tube of 19.1 mm diameter and the water at atmospheric pressure have been used. Up to 50 K of pool subcooling has been tested and results of the annulus are compared with the data of a single unrestricted tube. The increase in pool subcooling results in much change in heat transfer coefficients. As the heat flux increases and the subcooling decreases, a deterioration of heat transfer coefficients is observed. The governing mechanisms are suggested as single-phase heat transfer and liquid agitation for the single tube while liquid agitation and bubble coalescence are the major factors at the bottom closed annulus.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issue 2, January 2005, Pages 255-263
نویسندگان
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