کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
10139879 | 1645984 | 2019 | 10 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
New model for heat transfer calculation during film condensation inside pipes
ترجمه فارسی عنوان
مدل جدید برای محاسبه انتقال حرارت هنگام تراکم فیلم داخل لوله
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موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
In this paper a new model is presented for heat transfer calculation during film condensation inside pipes. This new model has been verified by comparison with available experimental data of a total of 22 different fluids, including water, various refrigerants and organic substances, which condense inside horizontal, vertical and inclined tubes. The model is valid for a range of internal diameters ranging from 2â¯mm to 50â¯mm, reduced pressure values ranging from 0.0008 to 0.91, Pr values for the liquid portion of the condensate from 1 to 18, values of Reynolds number for the liquid portion between 68 and 84827, and for the portion of the steam between 900 and 594373, steam quality from 0.01 to 0.99 and mass flux rates in the ranges of 3-850â¯kg/(m2â¯s). The mean deviation found for the data analyzed for vertical and inclined tubes was 13.0%, while for the horizontal tube data the mean deviation was 11.8%. In all cases, the agreement of the proposed model for horizontal, vertical and inclined tubes is good enough to be considered satisfactory for practical design.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 128, January 2019, Pages 344-353
Journal: International Journal of Heat and Mass Transfer - Volume 128, January 2019, Pages 344-353
نویسندگان
Yanan Camaraza-Medina, Abel Hernandez-Guerrero, J. Luis Luviano-Ortiz, Ken Mortensen-Carlson, Oscar Miguel Cruz-Fonticiella, Osvaldo Fidel GarcÃa-Morales,