کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
660905 | 1458152 | 2008 | 9 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Corrections to the simple effectiveness-NTU method for counterflow cooling towers and packed bed liquid desiccant–air contact systems
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Analytical expressions for the corrections to the simple effectiveness-NTU method are developed using perturbation technique for cooling towers and liquid desiccant–air contact systems. The developed model takes into consideration the effect of nonlinearities of humidity ratio and enthalpy of air in equilibrium with water or desiccant solutions. The model also takes into consideration the effect of water loss by evaporation and the effect of variation of the specific heat capacity of water or solution. The comparison with numerical integration of the dimensional heat and mass transfer equations shows that the analytical results are generally satisfactory and the improvement over the simple ε-NTU method is significant.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 1–2, January 2008, Pages 237–245
Journal: International Journal of Heat and Mass Transfer - Volume 51, Issues 1–2, January 2008, Pages 237–245
نویسندگان
Cheng-Qin Ren,