کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7054284 | 1458017 | 2018 | 16 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Buoyancy driven double diffusive moisture convection inside the fluid-porous-solid sandwiched building enclosure containing internal heating sources
ترجمه فارسی عنوان
رطوبت دوگانه نفوذ پذیری بوجینگ در محفظه ساختمان ساندویچ مایع متخلخل، حاوی منابع گرمای داخلی
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کلمات کلیدی
دو طرفه پراکنده، دیوار کامپوزیت ذخیره سازی حرارتی، نسبت هدایت حرارتی، تولید گرما داخلی،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی شیمی
جریان سیال و فرایندهای انتقال
چکیده انگلیسی
Double diffusive convection in an enclosure partially inserted with heat-generated porous layer and solid layer is investigated numerically. Moist air motions are simultaneously driven by the internal heat generation and external concentration difference imposed across the enclosure. Identical porous and solid layers are attached to the vertical walls, and the walls are held at constant temperatures and concentrations. The horizontal walls of the enclosure are assumed to be adiabatic and impermeable. The aspect ratio of the cavity is equal to 1.0 and the saturating fluid is moist air (Prâ¯=â¯0.7 and Leâ¯=â¯0.8). Present research covers the range of Rat from 103 to 107, N from â10.0 to 10.0, Da from 10â9 to 10â1, Φ from â90° to 90°, and Krf and Krs from 0.1 to 10.0. The results show that the thermal and solutal buoyancy forces are always aiding with each other and the minus sign of N only has influence on the fluid orientations. For the vertical case, heat and moisture transfer of fluid/porous interface is analyzed as a function of the buoyancy ratio. Average Nusselt and Sherwood numbers are increasing functions of Rat, N, Krp and Krs. Furthermore, volume averaged heat transfer rate as functions of inclination angle, for Nâ¯>â¯0.0, is presented like a sinusoid, where the maximum is near at Фâ¯=â¯45° and 135°, whereas the minimum is located at Фâ¯=â¯90°. Present research could benefit future development of sustainable building energy storage.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: International Journal of Heat and Mass Transfer - Volume 123, August 2018, Pages 600-615
Journal: International Journal of Heat and Mass Transfer - Volume 123, August 2018, Pages 600-615
نویسندگان
Jiang-Tao Hu, Shuo-Jun Mei, Di Liu, Fu-Yun Zhao, Han-Qing Wang,