کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7056380 1458051 2015 13 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Experimental investigation of convection heat transfer of n-decane at supercritical pressures in small vertical tubes
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Experimental investigation of convection heat transfer of n-decane at supercritical pressures in small vertical tubes
چکیده انگلیسی
This paper presents experimental investigations of the convection heat transfer of n-decane at supercritical pressures in vertical tubes with inner diameters of 0.95 and 2.00 mm for various inlet pressures, heat fluxes and flow directions. The effects of the heat fluxes, property variations, buoyancy and flow acceleration on the convection heat transfer were studied. The results show that for high inlet Reynolds numbers neither buoyancy nor flow acceleration affects heat transfer significantly, while for low inlet Reynolds numbers buoyancy strongly reduces heat transfer coefficient in upward flow cases. The threshold for Bo∗ was found to be about 2.0 × 10−7. Two local Nusselt number correlations for the convection heat transfer of supercritical pressures n-decane with and without buoyancy effect were developed based on the experimental data.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 91, December 2015, Pages 734-746
نویسندگان
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