کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
7153378 1462473 2018 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Assessment of heat transfer and fluid flow characteristics within finned flat tube
ترجمه فارسی عنوان
ارزیابی انتقال حرارت و ویژگی های جریان سیال در لوله صاف پنبه
کلمات کلیدی
لوله گالوانیزه مسطح باله های سوراخدار، انتقال گرما، جریان آشفته
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی مکانیک
چکیده انگلیسی
In this paper, the heat transfer and flow characteristic of air over flat finned tube with perforated and non-perforated fin have been carried out numerically. The mesh generation and finite volume analyses have been conducted using Ansys 15 with a RNG k-e turbulent model to estimate heat transfer coefficient and pressure drop. The free stream velocity ranging between 3,4,5,6, and 7 m/s have been applied for all cases in the simulation and verified with the available data. A satisfactory agreement was found between the percent results and the references with a maximum deviation of 7% for the finned circular tube with solid fin. The results present a considerable enhancement in Nusselt number with using perforation technique, where the perforation provide 8.5%, 13.6% and 18.4% enhancement using circular, square and triangular perforation respectively. Triangular perforation model offers a considerable finding due to the increment in the Nusselt number comparing to the pressure drop.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Case Studies in Thermal Engineering - Volume 12, September 2018, Pages 557-562
نویسندگان
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