کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
649041 1457212 2007 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Heat transfer and pressure drop correlations for the wavy fin and flat tube heat exchangers
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Heat transfer and pressure drop correlations for the wavy fin and flat tube heat exchangers
چکیده انگلیسی

A total of 11 cross-flow heat exchangers having wavy fin and flat tube were studied experimentally. A series of tests were conducted for air side Reynolds number in the range of 800–6500 with different fin pitches, fin lengths and fin heights, at a constant tube-side water flow rate of 2.5 m3/h. The air side thermal performance data were analyzed using the effectiveness-NTU method. The characteristics of heat transfer and pressure drop for different geometry parameters were reported in terms of Colburn j-factor and Fanning friction factor f, as a function of Re. The effects of fin pitch, fin height and fin length on the performance of heat transfer and pressure drop were examined. The general correlations for j and f factors were derived by multiple linear regression analysis and F test of significance. The correlations for j and f factors can predict 95% of the experimental data within ±10%.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Applied Thermal Engineering - Volume 27, Issues 11–12, August 2007, Pages 2066–2073
نویسندگان
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