کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
660404 1458146 2008 8 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Optimum length of tubes for heat transfer in turbulent flow at constant wall temperature
موضوعات مرتبط
مهندسی و علوم پایه مهندسی شیمی جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
Optimum length of tubes for heat transfer in turbulent flow at constant wall temperature
چکیده انگلیسی

Maximum heat transfer per cross-sectional area of a tube with smooth wall in turbulent flow at constant wall temperature is determined for a given pressure loss. The dimensionless tube length is determined dependent on the pressure Reynolds number, Prandtl number and inlet local pressure loss coefficient. Limiting cases for short and long tubes are separately investigated. Semi-empirical equations are derived for both optimum dimensionless tube length and dimensionless maximum heat flow per cross-sectional area using numerically obtained values with a maximum deviation of ±6.6% and with a RMSE of 3.5%. The results can also be applied to the channels with non-circular cross-sectional area.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 13–14, 1 July 2008, Pages 3478–3485
نویسندگان
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