کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
660741 | 1458114 | 2010 | 4 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Correlation to predict heat-transfer characteristics of a vertical flat thermosyphon (VFT) at normal operating conditions
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Experiments are conducted to determine the effect of dimensionless parameters on heat-transfer characteristics of a vertical flat thermosyphon (VFT). The VFT used in this study employed a copper tube with an inner diameter of 8.6Â mm. The cross-sectional areas of the tube were reduced by pressing them into a mold at pressed thicknesses of 6.6, 4.6 and 2.6Â mm. The evaporator, adiabatic and condenser were similar in lengths of 0.13, 0.23 and 0.33Â m, respectively. The working fluids used were R123, ethanol and water with filling ratios of 20%, 40%, 60% and 80% of the total volume. The evaporator section was heated with hot water while the condenser section was cooled with water. When the system reached an appropriate flow rate volume, the temperatures of the cooling water were recorded in order to calculate the heat-transfer rate of the VFT. After this, the dimensionless parameter relationships were analyzed from the experimental results. After the study processes were completed, a correlation of the dimensionless parameters for predicting VFT heat-transfer rate was established.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 25â26, December 2010, Pages 5984-5987
Journal: International Journal of Heat and Mass Transfer - Volume 53, Issues 25â26, December 2010, Pages 5984-5987
نویسندگان
S. Rittidech, W. Srimuang,