کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
663568 1458187 2005 16 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Two-dimensional thermal analysis of a polygonal fin with two tubes on a square pitch
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Two-dimensional thermal analysis of a polygonal fin with two tubes on a square pitch
چکیده انگلیسی

The boundary element method (BEM) has been used to investigate the two-dimensional temperature distribution and the flow of heat from a polygonal fin with two tubes on a square pitch. This numerical method is shown to be convergent, stable and consistent. The resultant heat flows from the fin and the tubes are presented in the form of fin performance ratios. The values of the two-dimensional fin performance ratios are almost identical to those obtained for a single radial rectangular fin of equivalent surface area. The one-dimensional fin performance indicators, fin performance ratio or fin efficiency can be used to predict the heat flows. However, the two-dimensional temperature distributions have revealed the existence of conductive paths between the two tubes depending upon the fin dimensions, the values of the heat transfer and material thermal conductivity, and the magnitude of the temperature differences between the two tubes and the surrounding air.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 48, Issue 14, July 2005, Pages 3018–3033
نویسندگان
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